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Edit File : XI2proto.h \| Size : 36.70 KB
/* * Copyright © 2009 Red Hat, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * / / Conventions for this file: * Names: * structs: always typedef'd, prefixed with xXI, CamelCase * struct members: lower_case_with_underscores * Exceptions: reqType, ReqType, repType, RepType, sequenceNumber are * named as such for historical reasons. * request opcodes: X_XIRequestName as CamelCase * defines: defines used in client applications must go in XI2.h * defines used only in protocol handling: XISOMENAME * * Data types: unless there is a historical name for a datatype (e.g. * Window), use stdint types specifying the size of the datatype. * historical data type names must be defined and undefined at the top and * end of the file. * * General: * spaces, not tabs. * structs specific to a request or reply added before the request * definition. structs used in more than one request, reply or event * appended to the common structs section before the definition of the * first request. * members of structs vertically aligned on column 16 if datatypes permit. * otherwise aligned on next available 8n column. / /* * Protocol definitions for the XI2 protocol. * This file should not be included by clients that merely use XI2, but do not * need the wire protocol. Such clients should include XI2.h, or the matching * header from the library. * / #ifndef _XI2PROTO_H_ #define _XI2PROTO_H_ #include <X11/Xproto.h> #include <X11/X.h> #include <X11/extensions/XI2.h> #include <stdint.h> / make sure types have right sizes for protocol structures. / #define Window uint32_t #define Time uint32_t #define Atom uint32_t #define Cursor uint32_t #define Barrier uint32_t /* * XI2 Request opcodes / #define X_XIQueryPointer 40 #define X_XIWarpPointer 41 #define X_XIChangeCursor 42 #define X_XIChangeHierarchy 43 #define X_XISetClientPointer 44 #define X_XIGetClientPointer 45 #define X_XISelectEvents 46 #define X_XIQueryVersion 47 #define X_XIQueryDevice 48 #define X_XISetFocus 49 #define X_XIGetFocus 50 #define X_XIGrabDevice 51 #define X_XIUngrabDevice 52 #define X_XIAllowEvents 53 #define X_XIPassiveGrabDevice 54 #define X_XIPassiveUngrabDevice 55 #define X_XIListProperties 56 #define X_XIChangeProperty 57 #define X_XIDeleteProperty 58 #define X_XIGetProperty 59 #define X_XIGetSelectedEvents 60 #define X_XIBarrierReleasePointer 61 /* Number of XI requests / #define XI2REQUESTS (X_XIBarrierReleasePointer - X_XIQueryPointer + 1) /* Number of XI2 events / #define XI2EVENTS (XI_LASTEVENT + 1) /************************************************************************************ * * * COMMON STRUCTS * * * ***********************************************************************************/ / Fixed point 16.16 / typedef int32_t FP1616; /* Fixed point 32.32 / typedef struct { int32_t integral; uint32_t frac; } FP3232; /* * Struct to describe a device. * * For a MasterPointer or a MasterKeyboard, 'attachment' specifies the * paired master device. * For a SlaveKeyboard or SlavePointer, 'attachment' specifies the master * device this device is attached to. * For a FloatingSlave, 'attachment' is undefined. / typedef struct { uint16_t deviceid; uint16_t use; /< ::XIMasterPointer, ::XIMasterKeyboard, ::XISlavePointer, ::XISlaveKeyboard, ::XIFloatingSlave / uint16_t attachment; /*< Current attachment or pairing./ uint16_t num_classes; /*< Number of classes following this struct. / uint16_t name_len; /*< Length of name in bytes. / uint8_t enabled; /*< TRUE if device is enabled. / uint8_t pad; } xXIDeviceInfo; /** * Default template for a device class. * A device class is equivalent to a device's capabilities. Multiple classes * are supported per device. / typedef struct { uint16_t type; /< One of class / uint16_t length; /< Length in 4 byte units / uint16_t sourceid; /*< source device for this class / uint16_t pad; } xXIAnyInfo; /** * Denotes button capability on a device. * Struct is followed by a button bit-mask (padded to four byte chunks) and * then num_buttons * Atom that names the buttons in the device-native setup * (i.e. ignoring button mappings). / typedef struct { uint16_t type; /< Always ButtonClass / uint16_t length; /*< Length in 4 byte units / uint16_t sourceid; /*< source device for this class / uint16_t num_buttons; /*< Number of buttons provided / } xXIButtonInfo; /** * Denotes key capability on a device. * Struct is followed by num_keys * CARD32 that lists the keycodes available * on the device. / typedef struct { uint16_t type; /< Always KeyClass / uint16_t length; /*< Length in 4 byte units / uint16_t sourceid; /*< source device for this class / uint16_t num_keycodes; /*< Number of keys provided / } xXIKeyInfo; /** * Denotes an valuator capability on a device. * One XIValuatorInfo describes exactly one valuator (axis) on the device. / typedef struct { uint16_t type; /< Always ValuatorClass / uint16_t length; /*< Length in 4 byte units / uint16_t sourceid; /*< source device for this class / uint16_t number; /*< Valuator number / Atom label; /*< Axis label / FP3232 min; /*< Min value / FP3232 max; /*< Max value / FP3232 value; /*< Last published value / uint32_t resolution; /*< Resolutions in units/m / uint8_t mode; /*< ModeRelative or ModeAbsolute / uint8_t pad1; uint16_t pad2; } xXIValuatorInfo; /*** * Denotes a scroll valuator on a device. * One XIScrollInfo describes exactly one scroll valuator that must have a * XIValuatorInfo struct. / typedef struct { uint16_t type; /< Always ValuatorClass / uint16_t length; /*< Length in 4 byte units / uint16_t sourceid; /*< source device for this class / uint16_t number; /*< Valuator number / uint16_t scroll_type; /*< ::XIScrollTypeVertical, ::XIScrollTypeHorizontal / uint16_t pad0; uint32_t flags; /*< ::XIScrollFlagEmulate, ::XIScrollFlagPreferred / FP3232 increment; /*< Increment for one unit of scrolling / } xXIScrollInfo; /** * Denotes multitouch capability on a device. / typedef struct { uint16_t type; /< Always TouchClass / uint16_t length; /*< Length in 4 byte units / uint16_t sourceid; /*< source device for this class / uint8_t mode; /*< DirectTouch or DependentTouch / uint8_t num_touches; /*< Maximum number of touches (0==unlimited) / } xXITouchInfo; /** * Used to select for events on a given window. * Struct is followed by (mask_len * CARD8), with each bit set representing * the event mask for the given type. A mask bit represents an event type if * (mask == (1 << type)). / typedef struct { uint16_t deviceid; /< Device id to select for / uint16_t mask_len; /*< Length of mask in 4 byte units / } xXIEventMask; /** * XKB modifier information. * The effective modifier is a binary mask of base, latched, and locked * modifiers. / typedef struct { uint32_t base_mods; /< Logically pressed modifiers / uint32_t latched_mods; /*< Logically latched modifiers / uint32_t locked_mods; /*< Logically locked modifiers / uint32_t effective_mods; /*< Effective modifiers / } xXIModifierInfo; /** * XKB group information. * The effective group is the mathematical sum of base, latched, and locked * group after group wrapping is taken into account. / typedef struct { uint8_t base_group; /< Logically "pressed" group / uint8_t latched_group; /*< Logically latched group / uint8_t locked_group; /*< Logically locked group / uint8_t effective_group; /*< Effective group / } xXIGroupInfo; /************************************************************************************* * * * REQUESTS * * * ***********************************************************************************/ / * Query the server for the supported X Input extension version. / typedef struct { uint8_t reqType; /< Input extension major code / uint8_t ReqType; /*< Always ::X_XIQueryVersion / uint16_t length; /*< Length in 4 byte units / uint16_t major_version; uint16_t minor_version; } xXIQueryVersionReq; #define sz_xXIQueryVersionReq 8 typedef struct { uint8_t repType; /*< ::X_Reply / uint8_t RepType; /*< Always ::X_XIQueryVersion / uint16_t sequenceNumber; uint32_t length; uint16_t major_version; uint16_t minor_version; uint32_t pad1; uint32_t pad2; uint32_t pad3; uint32_t pad4; uint32_t pad5; } xXIQueryVersionReply; #define sz_xXIQueryVersionReply 32 /** * Query the server for information about a specific device or all input * devices. / typedef struct { uint8_t reqType; /< Input extension major code / uint8_t ReqType; /*< Always ::X_XIQueryDevice / uint16_t length; /*< Length in 4 byte units / uint16_t deviceid; uint16_t pad; } xXIQueryDeviceReq; #define sz_xXIQueryDeviceReq 8 typedef struct { uint8_t repType; /*< ::X_Reply / uint8_t RepType; /*< Always ::X_XIQueryDevice / uint16_t sequenceNumber; uint32_t length; uint16_t num_devices; uint16_t pad0; uint32_t pad1; uint32_t pad2; uint32_t pad3; uint32_t pad4; uint32_t pad5; } xXIQueryDeviceReply; #define sz_xXIQueryDeviceReply 32 /** * Select for events on a given window. / typedef struct { uint8_t reqType; /< Input extension major code / uint8_t ReqType; /*< Always ::X_XISelectEvents / uint16_t length; /*< Length in 4 byte units / Window win; uint16_t num_masks; uint16_t pad; } xXISelectEventsReq; #define sz_xXISelectEventsReq 12 /** * Query for selected events on a given window. / typedef struct { uint8_t reqType; /< Input extension major code / uint8_t ReqType; /*< Always ::X_XIGetSelectedEvents / uint16_t length; /*< Length in 4 byte units / Window win; } xXIGetSelectedEventsReq; #define sz_xXIGetSelectedEventsReq 8 typedef struct { uint8_t repType; /*< Input extension major opcode / uint8_t RepType; /*< Always ::X_XIGetSelectedEvents / uint16_t sequenceNumber; uint32_t length; uint16_t num_masks; /*< Number of xXIEventMask structs trailing the reply / uint16_t pad0; uint32_t pad1; uint32_t pad2; uint32_t pad3; uint32_t pad4; uint32_t pad5; } xXIGetSelectedEventsReply; #define sz_xXIGetSelectedEventsReply 32 /** * Query the given device's screen/window coordinates. / typedef struct { uint8_t reqType; /< Input extension major code / uint8_t ReqType; /*< Always ::X_XIQueryPointer / uint16_t length; /*< Length in 4 byte units / Window win; uint16_t deviceid; uint16_t pad1; } xXIQueryPointerReq; #define sz_xXIQueryPointerReq 12 typedef struct { uint8_t repType; /*< Input extension major opcode / uint8_t RepType; /*< Always ::X_XIQueryPointer / uint16_t sequenceNumber; uint32_t length; Window root; Window child; FP1616 root_x; FP1616 root_y; FP1616 win_x; FP1616 win_y; uint8_t same_screen; uint8_t pad0; uint16_t buttons_len; xXIModifierInfo mods; xXIGroupInfo group; } xXIQueryPointerReply; #define sz_xXIQueryPointerReply 56 /** * Warp the given device's pointer to the specified position. / typedef struct { uint8_t reqType; /< Input extension major code / uint8_t ReqType; /*< Always ::X_XIWarpPointer / uint16_t length; /*< Length in 4 byte units / Window src_win; Window dst_win; FP1616 src_x; FP1616 src_y; uint16_t src_width; uint16_t src_height; FP1616 dst_x; FP1616 dst_y; uint16_t deviceid; uint16_t pad1; } xXIWarpPointerReq; #define sz_xXIWarpPointerReq 36 /** * Change the given device's sprite to the given cursor. / typedef struct { uint8_t reqType; /< Input extension major code / uint8_t ReqType; /*< Always ::X_XIChangeCursor / uint16_t length; /*< Length in 4 byte units / Window win; Cursor cursor; uint16_t deviceid; uint16_t pad1; } xXIChangeCursorReq; #define sz_xXIChangeCursorReq 16 /** * Modify the device hierarchy. / typedef struct { uint8_t reqType; /< Input extension major code / uint8_t ReqType; /*< Always ::X_XIChangeHierarchy / uint16_t length; /*< Length in 4 byte units / uint8_t num_changes; uint8_t pad0; uint16_t pad1; } xXIChangeHierarchyReq; #define sz_xXIChangeHierarchyReq 8 /** * Generic header for any hierarchy change. / typedef struct { uint16_t type; uint16_t length; /< Length in 4 byte units / } xXIAnyHierarchyChangeInfo; /** * Create a new master device. * Name of new master follows struct (4-byte padded) / typedef struct { uint16_t type; /< Always ::XIAddMaster / uint16_t length; /*< 2 + (namelen + padding)/4 / uint16_t name_len; uint8_t send_core; uint8_t enable; } xXIAddMasterInfo; /** * Delete a master device. Will automatically delete the master device paired * with the given master device. / typedef struct { uint16_t type; /< Always ::XIRemoveMaster / uint16_t length; /*< 3 / uint16_t deviceid; uint8_t return_mode; /*< ::XIAttachToMaster, ::XIFloating / uint8_t pad; uint16_t return_pointer; /*< Pointer to attach slave ptr devices to / uint16_t return_keyboard; /*< keyboard to attach slave keybd devices to/ } xXIRemoveMasterInfo; /** * Attach an SD to a new device. * NewMaster has to be of same type (pointer->pointer, keyboard->keyboard); / typedef struct { uint16_t type; /< Always ::XIAttachSlave / uint16_t length; /*< 2 / uint16_t deviceid; uint16_t new_master; /*< id of new master device / } xXIAttachSlaveInfo; /** * Detach an SD from its current master device. / typedef struct { uint16_t type; /< Always ::XIDetachSlave / uint16_t length; /*< 2 / uint16_t deviceid; uint16_t pad; } xXIDetachSlaveInfo; /** * Set the window/client's ClientPointer. / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always ::X_XISetClientPointer / uint16_t length; /*< Length in 4 byte units / Window win; uint16_t deviceid; uint16_t pad1; } xXISetClientPointerReq; #define sz_xXISetClientPointerReq 12 /** * Query the given window/client's ClientPointer setting. / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always ::X_GetClientPointer / uint16_t length; /*< Length in 4 byte units / Window win; } xXIGetClientPointerReq; #define sz_xXIGetClientPointerReq 8 typedef struct { uint8_t repType; /*< Input extension major opcode / uint8_t RepType; /*< Always ::X_GetClientPointer / uint16_t sequenceNumber; uint32_t length; BOOL set; /*< client pointer is set? / uint8_t pad0; uint16_t deviceid; uint32_t pad1; uint32_t pad2; uint32_t pad3; uint32_t pad4; uint32_t pad5; } xXIGetClientPointerReply; #define sz_xXIGetClientPointerReply 32 /** * Set the input focus to the specified window. / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always ::X_XISetFocus / uint16_t length; /*< Length in 4 byte units / Window focus; Time time; uint16_t deviceid; uint16_t pad0; } xXISetFocusReq; #define sz_xXISetFocusReq 16 /** * Query the current input focus. / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always ::X_XIGetDeviceFocus / uint16_t length; /*< Length in 4 byte units / uint16_t deviceid; uint16_t pad0; } xXIGetFocusReq; #define sz_xXIGetFocusReq 8 typedef struct { uint8_t repType; /*< Input extension major opcode / uint8_t RepType; /*< Always ::X_XIGetFocus / uint16_t sequenceNumber; uint32_t length; Window focus; uint32_t pad1; uint32_t pad2; uint32_t pad3; uint32_t pad4; uint32_t pad5; } xXIGetFocusReply; #define sz_xXIGetFocusReply 32 /** * Grab the given device. / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always ::X_XIGrabDevice / uint16_t length; /*< Length in 4 byte units / Window grab_window; Time time; Cursor cursor; uint16_t deviceid; uint8_t grab_mode; uint8_t paired_device_mode; uint8_t owner_events; uint8_t pad; uint16_t mask_len; } xXIGrabDeviceReq; #define sz_xXIGrabDeviceReq 24 /** * Return codes from a XIPassiveGrabDevice request. / typedef struct { uint32_t modifiers; /< Modifier state / uint8_t status; /*< Grab status code / uint8_t pad0; uint16_t pad1; } xXIGrabModifierInfo; typedef struct { uint8_t repType; /*< Input extension major opcode / uint8_t RepType; /*< Always ::X_XIGrabDevice / uint16_t sequenceNumber; uint32_t length; uint8_t status; uint8_t pad0; uint16_t pad1; uint32_t pad2; uint32_t pad3; uint32_t pad4; uint32_t pad5; uint32_t pad6; } xXIGrabDeviceReply; #define sz_xXIGrabDeviceReply 32 /** * Ungrab the specified device. * / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always ::X_XIUngrabDevice / uint16_t length; /*< Length in 4 byte units / Time time; uint16_t deviceid; uint16_t pad; } xXIUngrabDeviceReq; #define sz_xXIUngrabDeviceReq 12 /** * Allow or replay events on the specified grabbed device. / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always ::X_XIAllowEvents / uint16_t length; /*< Length in 4 byte units / Time time; uint16_t deviceid; uint8_t mode; uint8_t pad; } xXIAllowEventsReq; #define sz_xXIAllowEventsReq 12 /** * Allow or replay events on the specified grabbed device. * Since XI 2.2 / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always ::X_XIAllowEvents / uint16_t length; /*< Length in 4 byte units / Time time; uint16_t deviceid; uint8_t mode; uint8_t pad; uint32_t touchid; /*< Since XI 2.2 / Window grab_window; /*< Since XI 2.2 / } xXI2_2AllowEventsReq; #define sz_xXI2_2AllowEventsReq 20 /** * Passively grab the device. / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always ::X_XIPassiveGrabDevice / uint16_t length; /*< Length in 4 byte units / Time time; Window grab_window; Cursor cursor; uint32_t detail; uint16_t deviceid; uint16_t num_modifiers; uint16_t mask_len; uint8_t grab_type; uint8_t grab_mode; uint8_t paired_device_mode; uint8_t owner_events; uint16_t pad1; } xXIPassiveGrabDeviceReq; #define sz_xXIPassiveGrabDeviceReq 32 typedef struct { uint8_t repType; /*< Input extension major opcode / uint8_t RepType; /*< Always ::X_XIPassiveGrabDevice / uint16_t sequenceNumber; uint32_t length; uint16_t num_modifiers; uint16_t pad1; uint32_t pad2; uint32_t pad3; uint32_t pad4; uint32_t pad5; uint32_t pad6; } xXIPassiveGrabDeviceReply; #define sz_xXIPassiveGrabDeviceReply 32 /** * Delete a passive grab for the given device. / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always ::X_XIPassiveUngrabDevice / uint16_t length; /*< Length in 4 byte units / Window grab_window; uint32_t detail; uint16_t deviceid; uint16_t num_modifiers; uint8_t grab_type; uint8_t pad0; uint16_t pad1; } xXIPassiveUngrabDeviceReq; #define sz_xXIPassiveUngrabDeviceReq 20 /** * List all device properties on the specified device. / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always ::X_XIListProperties / uint16_t length; /*< Length in 4 byte units / uint16_t deviceid; uint16_t pad; } xXIListPropertiesReq; #define sz_xXIListPropertiesReq 8 typedef struct { uint8_t repType; /*< Input extension major opcode / uint8_t RepType; /*< Always ::X_XIListProperties / uint16_t sequenceNumber; uint32_t length; uint16_t num_properties; uint16_t pad0; uint32_t pad1; uint32_t pad2; uint32_t pad3; uint32_t pad4; uint32_t pad5; } xXIListPropertiesReply; #define sz_xXIListPropertiesReply 32 /** * Change a property on the specified device. / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always ::X_XIChangeProperty / uint16_t length; /*< Length in 4 byte units / uint16_t deviceid; uint8_t mode; uint8_t format; Atom property; Atom type; uint32_t num_items; } xXIChangePropertyReq; #define sz_xXIChangePropertyReq 20 /** * Delete the specified property. / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always X_XIDeleteProperty / uint16_t length; /*< Length in 4 byte units / uint16_t deviceid; uint16_t pad0; Atom property; } xXIDeletePropertyReq; #define sz_xXIDeletePropertyReq 12 /** * Query the specified property's values. / typedef struct { uint8_t reqType; uint8_t ReqType; /< Always X_XIGetProperty / uint16_t length; /*< Length in 4 byte units / uint16_t deviceid; #if defined(__cplusplus) \|\| defined(c_plusplus) uint8_t c_delete; #else uint8_t delete; #endif uint8_t pad0; Atom property; Atom type; uint32_t offset; uint32_t len; } xXIGetPropertyReq; #define sz_xXIGetPropertyReq 24 typedef struct { uint8_t repType; /*< Input extension major opcode / uint8_t RepType; /*< Always X_XIGetProperty / uint16_t sequenceNumber; uint32_t length; Atom type; uint32_t bytes_after; uint32_t num_items; uint8_t format; uint8_t pad0; uint16_t pad1; uint32_t pad2; uint32_t pad3; } xXIGetPropertyReply; #define sz_xXIGetPropertyReply 32 typedef struct { uint16_t deviceid; uint16_t pad; Barrier barrier; uint32_t eventid; } xXIBarrierReleasePointerInfo; typedef struct { uint8_t reqType; /*< Input extension major opcode / uint8_t ReqType; /*< Always X_XIBarrierReleasePointer / uint16_t length; uint32_t num_barriers; /* array of xXIBarrierReleasePointerInfo / } xXIBarrierReleasePointerReq; #define sz_xXIBarrierReleasePointerReq 8 /************************************************************************************ * * * EVENTS * * * ***********************************************************************************/ / * Generic XI2 event header. All XI2 events use the same header. / typedef struct { uint8_t type; uint8_t extension; /< XI extension offset / uint16_t sequenceNumber; uint32_t length; uint16_t evtype; uint16_t deviceid; Time time; } xXIGenericDeviceEvent; /** * Device hierarchy information. / typedef struct { uint16_t deviceid; uint16_t attachment; /< ID of master or paired device / uint8_t use; /*< ::XIMasterKeyboard, ::XIMasterPointer, ::XISlaveKeyboard, ::XISlavePointer, ::XIFloatingSlave / BOOL enabled; /*< TRUE if the device is enabled / uint16_t pad; uint32_t flags; /*< ::XIMasterAdded, ::XIMasterRemoved, ::XISlaveAttached, ::XISlaveDetached, ::XISlaveAdded, ::XISlaveRemoved, ::XIDeviceEnabled, ::XIDeviceDisabled / } xXIHierarchyInfo; /** * The device hierarchy has been modified. This event includes the device * hierarchy after the modification has been applied. / typedef struct { uint8_t type; /< Always GenericEvent / uint8_t extension; /*< XI extension offset / uint16_t sequenceNumber; uint32_t length; /*< Length in 4 byte units / uint16_t evtype; /*< ::XI_Hierarchy / uint16_t deviceid; Time time; uint32_t flags; /*< ::XIMasterAdded, ::XIMasterDeleted, ::XISlaveAttached, ::XISlaveDetached, ::XISlaveAdded, ::XISlaveRemoved, ::XIDeviceEnabled, ::XIDeviceDisabled / uint16_t num_info; uint16_t pad0; uint32_t pad1; uint32_t pad2; } xXIHierarchyEvent; /** * A device has changed capabilities. / typedef struct { uint8_t type; /< Always GenericEvent / uint8_t extension; /*< XI extension offset / uint16_t sequenceNumber; uint32_t length; /*< Length in 4 byte units / uint16_t evtype; /*< XI_DeviceChanged / uint16_t deviceid; /*< Device that has changed / Time time; uint16_t num_classes; /*< Number of classes that have changed / uint16_t sourceid; /*< Source of the new classes / uint8_t reason; /*< ::XISlaveSwitch, ::XIDeviceChange / uint8_t pad0; uint16_t pad1; uint32_t pad2; uint32_t pad3; } xXIDeviceChangedEvent; /** * The owner of a touch stream has passed on ownership to another client. / typedef struct { uint8_t type; /< Always GenericEvent / uint8_t extension; /*< XI extension offset / uint16_t sequenceNumber; uint32_t length; /*< Length in 4 byte units / uint16_t evtype; /*< XI_TouchOwnership / uint16_t deviceid; /*< Device that has changed / Time time; uint32_t touchid; Window root; Window event; Window child; /* └──────── 32 byte boundary ────────┘ / uint16_t sourceid; uint16_t pad0; uint32_t flags; uint32_t pad1; uint32_t pad2; } xXITouchOwnershipEvent; /* * Default input event for pointer, keyboard or touch input. / typedef struct { uint8_t type; /< Always GenericEvent / uint8_t extension; /*< XI extension offset / uint16_t sequenceNumber; uint32_t length; /*< Length in 4 byte uints / uint16_t evtype; uint16_t deviceid; Time time; uint32_t detail; /*< Keycode or button / Window root; Window event; Window child; /* └──────── 32 byte boundary ────────┘ / FP1616 root_x; /< Always screen coords, 16.16 fixed point / FP1616 root_y; FP1616 event_x; /*< Always screen coords, 16.16 fixed point / FP1616 event_y; uint16_t buttons_len; /*< Len of button flags in 4 b units / uint16_t valuators_len; /*< Len of val. flags in 4 b units / uint16_t sourceid; /*< The source device / uint16_t pad0; uint32_t flags; /*< ::XIKeyRepeat / xXIModifierInfo mods; xXIGroupInfo group; } xXIDeviceEvent; /** * Sent when an input event is generated. RawEvents include valuator * information in both device-specific data (i.e. unaccelerated) and * processed data (i.e. accelerated, if applicable). / typedef struct { uint8_t type; /< Always GenericEvent / uint8_t extension; /*< XI extension offset / uint16_t sequenceNumber; uint32_t length; /*< Length in 4 byte uints / uint16_t evtype; /*< ::XI_RawEvent / uint16_t deviceid; Time time; uint32_t detail; uint16_t sourceid; /*< The source device (XI 2.1) / uint16_t valuators_len; /*< Length of trailing valuator mask in 4 byte units / uint32_t flags; /*< ::XIKeyRepeat / uint32_t pad2; } xXIRawEvent; /** * Note that the layout of root, event, child, root_x, root_y, event_x, * event_y must be identical to the xXIDeviceEvent. / typedef struct { uint8_t type; /< Always GenericEvent / uint8_t extension; /*< XI extension offset / uint16_t sequenceNumber; uint32_t length; /*< Length in 4 byte uints / uint16_t evtype; /*< ::XI_Enter / uint16_t deviceid; Time time; uint16_t sourceid; uint8_t mode; uint8_t detail; Window root; Window event; Window child; /* └──────── 32 byte boundary ────────┘ / FP1616 root_x; FP1616 root_y; FP1616 event_x; FP1616 event_y; BOOL same_screen; BOOL focus; uint16_t buttons_len; /< Length of trailing button mask in 4 byte units / xXIModifierInfo mods; xXIGroupInfo group; } xXIEnterEvent; typedef xXIEnterEvent xXILeaveEvent; typedef xXIEnterEvent xXIFocusInEvent; typedef xXIEnterEvent xXIFocusOutEvent; /** * Sent when a device property is created, modified or deleted. Does not * include property data, the client is required to query the data. / typedef struct { uint8_t type; /< Always GenericEvent / uint8_t extension; /*< XI extension offset / uint16_t sequenceNumber; uint32_t length; /*< Length in 4 byte units / uint16_t evtype; /*< ::XI_PropertyEvent / uint16_t deviceid; Time time; Atom property; uint8_t what; /*< ::XIPropertyDeleted, ::XIPropertyCreated, ::XIPropertyMotified / uint8_t pad0; uint16_t pad1; uint32_t pad2; uint32_t pad3; } xXIPropertyEvent; typedef struct { uint8_t type; /*< Always GenericEvent / uint8_t extension; /*< XI extension offset / uint16_t sequenceNumber; uint32_t length; /*< Length in 4 byte units / uint16_t evtype; /*< ::XI_BarrierHit or ::XI_BarrierLeave / uint16_t deviceid; Time time; uint32_t eventid; Window root; Window event; Barrier barrier; /* └──────── 32 byte boundary ────────┘ / uint32_t dtime; uint32_t flags; /< ::XIBarrierPointerReleased ::XIBarrierDeviceIsGrabbed / uint16_t sourceid; int16_t pad; FP1616 root_x; FP1616 root_y; FP3232 dx; FP3232 dy; } xXIBarrierEvent; typedef xXIBarrierEvent xXIBarrierHitEvent; typedef xXIBarrierEvent xXIBarrierPointerReleasedEvent; typedef xXIBarrierEvent xXIBarrierLeaveEvent; #undef Window #undef Time #undef Atom #undef Cursor #undef Barrier #endif /* _XI2PROTO_H_ */ Back

Edit File : XI2proto.h | Size : 36.70 KB

/*
 * Copyright © 2009 Red Hat, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 */

/* Conventions for this file:
 * Names:
 * structs: always typedef'd, prefixed with xXI, CamelCase
 * struct members: lower_case_with_underscores
 *        Exceptions: reqType, ReqType, repType, RepType, sequenceNumber are
 *        named as such for historical reasons.
 * request opcodes: X_XIRequestName as CamelCase
 * defines: defines used in client applications must go in XI2.h
 *          defines used only in protocol handling: XISOMENAME
 *
 * Data types: unless there is a historical name for a datatype (e.g.
 * Window), use stdint types specifying the size of the datatype.
 * historical data type names must be defined and undefined at the top and
 * end of the file.
 *
 * General:
 * spaces, not tabs.
 * structs specific to a request or reply added before the request
 *      definition. structs used in more than one request, reply or event
 *      appended to the common structs section before the definition of the
 *      first request.
 * members of structs vertically aligned on column 16 if datatypes permit.
 *      otherwise aligned on next available 8n column.
 */

/**
 * Protocol definitions for the XI2 protocol.
 * This file should not be included by clients that merely use XI2, but do not
 * need the wire protocol. Such clients should include XI2.h, or the matching
 * header from the library.
 *
 */
#ifndef _XI2PROTO_H_
#define _XI2PROTO_H_

#include <X11/Xproto.h>
#include <X11/X.h>
#include <X11/extensions/XI2.h>
#include <stdint.h>

/* make sure types have right sizes for protocol structures. */
#define Window  uint32_t
#define Time    uint32_t
#define Atom    uint32_t
#define Cursor  uint32_t
#define Barrier uint32_t

/**
 * XI2 Request opcodes
 */
#define X_XIQueryPointer                40
#define X_XIWarpPointer                 41
#define X_XIChangeCursor                42
#define X_XIChangeHierarchy             43
#define X_XISetClientPointer            44
#define X_XIGetClientPointer            45
#define X_XISelectEvents                46
#define X_XIQueryVersion                47
#define X_XIQueryDevice                 48
#define X_XISetFocus                    49
#define X_XIGetFocus                    50
#define X_XIGrabDevice                  51
#define X_XIUngrabDevice                52
#define X_XIAllowEvents                 53
#define X_XIPassiveGrabDevice           54
#define X_XIPassiveUngrabDevice         55
#define X_XIListProperties              56
#define X_XIChangeProperty              57
#define X_XIDeleteProperty              58
#define X_XIGetProperty                 59
#define X_XIGetSelectedEvents           60
#define X_XIBarrierReleasePointer       61

/** Number of XI requests */
#define XI2REQUESTS (X_XIBarrierReleasePointer - X_XIQueryPointer + 1)
/** Number of XI2 events */
#define XI2EVENTS   (XI_LASTEVENT + 1)

/*************************************************************************************
 *                                                                                   *
 *                               COMMON STRUCTS                                      *
 *                                                                                   *
 *************************************************************************************/
/** Fixed point 16.16 */
typedef int32_t FP1616;

/** Fixed point 32.32 */
typedef struct {
    int32_t     integral;
    uint32_t    frac;
} FP3232;

/**
 * Struct to describe a device.
 *
 * For a MasterPointer or a MasterKeyboard, 'attachment' specifies the
 * paired master device.
 * For a SlaveKeyboard or SlavePointer, 'attachment' specifies the master
 * device this device is attached to.
 * For a FloatingSlave, 'attachment' is undefined.
 */
typedef struct {
    uint16_t    deviceid;
    uint16_t    use;            /**< ::XIMasterPointer, ::XIMasterKeyboard,
                                     ::XISlavePointer, ::XISlaveKeyboard,
                                     ::XIFloatingSlave */
    uint16_t    attachment;     /**< Current attachment or pairing.*/
    uint16_t    num_classes;    /**< Number of classes following this struct. */
    uint16_t    name_len;       /**< Length of name in bytes. */
    uint8_t     enabled;        /**< TRUE if device is enabled. */
    uint8_t     pad;
} xXIDeviceInfo;

/**
 * Default template for a device class.
 * A device class is equivalent to a device's capabilities. Multiple classes
 * are supported per device.
 */
typedef struct {
    uint16_t    type;           /**< One of *class */
    uint16_t    length;         /**< Length in 4 byte units */
    uint16_t    sourceid;       /**< source device for this class */
    uint16_t    pad;
} xXIAnyInfo;

/**
 * Denotes button capability on a device.
 * Struct is followed by a button bit-mask (padded to four byte chunks) and
 * then num_buttons * Atom that names the buttons in the device-native setup
 * (i.e.  ignoring button mappings).
 */
typedef struct {
    uint16_t    type;           /**< Always ButtonClass */
    uint16_t    length;         /**< Length in 4 byte units */
    uint16_t    sourceid;       /**< source device for this class */
    uint16_t    num_buttons;    /**< Number of buttons provided */
} xXIButtonInfo;

/**
 * Denotes key capability on a device.
 * Struct is followed by num_keys * CARD32 that lists the keycodes available
 * on the device.
 */
typedef struct {
    uint16_t    type;           /**< Always KeyClass */
    uint16_t    length;         /**< Length in 4 byte units */
    uint16_t    sourceid;       /**< source device for this class */
    uint16_t    num_keycodes;   /**< Number of keys provided */
} xXIKeyInfo;

/**
 * Denotes an valuator capability on a device.
 * One XIValuatorInfo describes exactly one valuator (axis) on the device.
 */
typedef struct {
    uint16_t    type;           /**< Always ValuatorClass       */
    uint16_t    length;         /**< Length in 4 byte units */
    uint16_t    sourceid;       /**< source device for this class */
    uint16_t    number;         /**< Valuator number            */
    Atom        label;          /**< Axis label                 */
    FP3232      min;            /**< Min value                  */
    FP3232      max;            /**< Max value                  */
    FP3232      value;          /**< Last published value       */
    uint32_t    resolution;     /**< Resolutions in units/m     */
    uint8_t     mode;           /**< ModeRelative or ModeAbsolute */
    uint8_t     pad1;
    uint16_t    pad2;
} xXIValuatorInfo;

/***
 * Denotes a scroll valuator on a device.
 * One XIScrollInfo describes exactly one scroll valuator that must have a
 * XIValuatorInfo struct.
 */
typedef struct {
    uint16_t    type;           /**< Always ValuatorClass         */
    uint16_t    length;         /**< Length in 4 byte units       */
    uint16_t    sourceid;       /**< source device for this class */
    uint16_t    number;         /**< Valuator number              */
    uint16_t    scroll_type;    /**< ::XIScrollTypeVertical, ::XIScrollTypeHorizontal */
    uint16_t    pad0;
    uint32_t    flags;          /**< ::XIScrollFlagEmulate, ::XIScrollFlagPreferred   */
    FP3232      increment;      /**< Increment for one unit of scrolling              */
} xXIScrollInfo;

/**
 * Denotes multitouch capability on a device.
 */
typedef struct {
    uint16_t    type;           /**< Always TouchClass */
    uint16_t    length;         /**< Length in 4 byte units */
    uint16_t    sourceid;       /**< source device for this class */
    uint8_t     mode;           /**< DirectTouch or DependentTouch */
    uint8_t     num_touches;    /**< Maximum number of touches (0==unlimited) */
} xXITouchInfo;

/**
 * Used to select for events on a given window.
 * Struct is followed by (mask_len * CARD8), with each bit set representing
 * the event mask for the given type. A mask bit represents an event type if
 * (mask == (1 << type)).
 */
typedef struct {
    uint16_t    deviceid;       /**< Device id to select for        */
    uint16_t    mask_len;       /**< Length of mask in 4 byte units */
} xXIEventMask;

/**
 * XKB modifier information.
 * The effective modifier is a binary mask of base, latched, and locked
 * modifiers.
 */
typedef struct
{
    uint32_t    base_mods;              /**< Logically pressed modifiers */
    uint32_t    latched_mods;           /**< Logically latched modifiers */
    uint32_t    locked_mods;            /**< Logically locked modifiers */
    uint32_t    effective_mods;         /**< Effective modifiers */
} xXIModifierInfo;

/**
 * XKB group information.
 * The effective group is the mathematical sum of base, latched, and locked
 * group after group wrapping is taken into account.
 */
typedef struct
{
    uint8_t     base_group;             /**< Logically "pressed" group */
    uint8_t     latched_group;          /**< Logically latched group */
    uint8_t     locked_group;           /**< Logically locked group */
    uint8_t     effective_group;        /**< Effective group */
} xXIGroupInfo;

/*************************************************************************************
 *                                                                                   *
 *                                   REQUESTS                                        *
 *                                                                                   *
 *************************************************************************************/

/**
 * Query the server for the supported X Input extension version.
 */

typedef struct {
    uint8_t     reqType;                /**< Input extension major code */
    uint8_t     ReqType;                /**< Always ::X_XIQueryVersion */
    uint16_t    length;                 /**< Length in 4 byte units */
    uint16_t    major_version;
    uint16_t    minor_version;
} xXIQueryVersionReq;
#define sz_xXIQueryVersionReq                     8

typedef struct {
    uint8_t     repType;                /**< ::X_Reply */
    uint8_t     RepType;                /**< Always ::X_XIQueryVersion */
    uint16_t    sequenceNumber;
    uint32_t    length;
    uint16_t    major_version;
    uint16_t    minor_version;
    uint32_t    pad1;
    uint32_t    pad2;
    uint32_t    pad3;
    uint32_t    pad4;
    uint32_t    pad5;
} xXIQueryVersionReply;
#define sz_xXIQueryVersionReply             32

/**
 * Query the server for information about a specific device or all input
 * devices.
 */
typedef struct {
    uint8_t     reqType;                /**< Input extension major code */
    uint8_t     ReqType;                /**< Always ::X_XIQueryDevice */
    uint16_t    length;                 /**< Length in 4 byte units */
    uint16_t    deviceid;
    uint16_t    pad;
} xXIQueryDeviceReq;
#define sz_xXIQueryDeviceReq                    8

typedef struct {
    uint8_t     repType;                /**< ::X_Reply */
    uint8_t     RepType;                /**< Always ::X_XIQueryDevice */
    uint16_t    sequenceNumber;
    uint32_t    length;
    uint16_t    num_devices;
    uint16_t    pad0;
    uint32_t    pad1;
    uint32_t    pad2;
    uint32_t    pad3;
    uint32_t    pad4;
    uint32_t    pad5;
} xXIQueryDeviceReply;
#define sz_xXIQueryDeviceReply                  32

/**
 * Select for events on a given window.
 */
typedef struct {
    uint8_t     reqType;                /**< Input extension major code */
    uint8_t     ReqType;                /**< Always ::X_XISelectEvents */
    uint16_t    length;                 /**< Length in 4 byte units */
    Window      win;
    uint16_t    num_masks;
    uint16_t    pad;
} xXISelectEventsReq;
#define sz_xXISelectEventsReq                  12

/**
 * Query for selected events on a given window.
 */
typedef struct {
    uint8_t     reqType;                /**< Input extension major code */
    uint8_t     ReqType;                /**< Always ::X_XIGetSelectedEvents */
    uint16_t    length;                 /**< Length in 4 byte units */
    Window      win;
} xXIGetSelectedEventsReq;
#define sz_xXIGetSelectedEventsReq              8

typedef struct {
    uint8_t     repType;                /**< Input extension major opcode */
    uint8_t     RepType;                /**< Always ::X_XIGetSelectedEvents */
    uint16_t    sequenceNumber;
    uint32_t    length;
    uint16_t    num_masks;              /**< Number of xXIEventMask structs
                                             trailing the reply */
    uint16_t    pad0;
    uint32_t    pad1;
    uint32_t    pad2;
    uint32_t    pad3;
    uint32_t    pad4;
    uint32_t    pad5;
} xXIGetSelectedEventsReply;
#define sz_xXIGetSelectedEventsReply            32

/**
 * Query the given device's screen/window coordinates.
 */

typedef struct {
    uint8_t     reqType;                /**< Input extension major code */
    uint8_t     ReqType;                /**< Always ::X_XIQueryPointer */
    uint16_t    length;                 /**< Length in 4 byte units */
    Window      win;
    uint16_t    deviceid;
    uint16_t    pad1;
} xXIQueryPointerReq;
#define sz_xXIQueryPointerReq                   12

typedef struct {
    uint8_t     repType;                /**< Input extension major opcode */
    uint8_t     RepType;                /**< Always ::X_XIQueryPointer */
    uint16_t    sequenceNumber;
    uint32_t    length;
    Window      root;
    Window      child;
    FP1616      root_x;
    FP1616      root_y;
    FP1616      win_x;
    FP1616      win_y;
    uint8_t     same_screen;
    uint8_t     pad0;
    uint16_t    buttons_len;
    xXIModifierInfo mods;
    xXIGroupInfo group;
} xXIQueryPointerReply;
#define sz_xXIQueryPointerReply                 56

/**
 * Warp the given device's pointer to the specified position.
 */

typedef struct {
    uint8_t     reqType;                /**< Input extension major code */
    uint8_t     ReqType;                /**< Always ::X_XIWarpPointer   */
    uint16_t    length;                 /**< Length in 4 byte units */
    Window      src_win;
    Window      dst_win;
    FP1616      src_x;
    FP1616      src_y;
    uint16_t    src_width;
    uint16_t    src_height;
    FP1616      dst_x;
    FP1616      dst_y;
    uint16_t    deviceid;
    uint16_t    pad1;
} xXIWarpPointerReq;
#define sz_xXIWarpPointerReq                    36

/**
 * Change the given device's sprite to the given cursor.
 */

typedef struct {
    uint8_t     reqType;                /**< Input extension major code */
    uint8_t     ReqType;                /**< Always ::X_XIChangeCursor  */
    uint16_t    length;                 /**< Length in 4 byte units */
    Window      win;
    Cursor      cursor;
    uint16_t    deviceid;
    uint16_t    pad1;
} xXIChangeCursorReq;
#define sz_xXIChangeCursorReq                           16

/**
 * Modify the device hierarchy.
 */

typedef struct {
    uint8_t     reqType;                /**< Input extension major code */
    uint8_t     ReqType;                /**< Always ::X_XIChangeHierarchy */
    uint16_t    length;                 /**< Length in 4 byte units */
    uint8_t     num_changes;
    uint8_t     pad0;
    uint16_t    pad1;
} xXIChangeHierarchyReq;
#define sz_xXIChangeHierarchyReq                        8

/**
 * Generic header for any hierarchy change.
 */
typedef struct {
    uint16_t    type;
    uint16_t    length;                 /**< Length in 4 byte units */
} xXIAnyHierarchyChangeInfo;

/**
 * Create a new master device.
 * Name of new master follows struct (4-byte padded)
 */
typedef struct {
    uint16_t    type;                   /**< Always ::XIAddMaster */
    uint16_t    length;                 /**< 2 + (namelen + padding)/4 */
    uint16_t    name_len;
    uint8_t     send_core;
    uint8_t     enable;
} xXIAddMasterInfo;

/**
 * Delete a master device. Will automatically delete the master device paired
 * with the given master device.
 */
typedef struct {
    uint16_t    type;            /**< Always ::XIRemoveMaster */
    uint16_t    length;          /**< 3 */
    uint16_t    deviceid;
    uint8_t     return_mode;     /**< ::XIAttachToMaster, ::XIFloating */
    uint8_t     pad;
    uint16_t    return_pointer;  /**< Pointer to attach slave ptr devices to */
    uint16_t    return_keyboard; /**< keyboard to attach slave keybd devices to*/
} xXIRemoveMasterInfo;

/**
 * Attach an SD to a new device.
 * NewMaster has to be of same type (pointer->pointer, keyboard->keyboard);
 */
typedef struct {
    uint16_t    type;           /**< Always ::XIAttachSlave */
    uint16_t    length;         /**< 2 */
    uint16_t    deviceid;
    uint16_t    new_master;     /**< id of new master device */
} xXIAttachSlaveInfo;

/**
 * Detach an SD from its current master device.
 */
typedef struct {
    uint16_t    type;           /**< Always ::XIDetachSlave */
    uint16_t    length;         /**< 2 */
    uint16_t    deviceid;
    uint16_t    pad;
} xXIDetachSlaveInfo;

/**
 * Set the window/client's ClientPointer.
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always ::X_XISetClientPointer */
    uint16_t    length;                 /**< Length in 4 byte units */
    Window      win;
    uint16_t    deviceid;
    uint16_t    pad1;
} xXISetClientPointerReq;
#define sz_xXISetClientPointerReq                 12

/**
 * Query the given window/client's ClientPointer setting.
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always ::X_GetClientPointer */
    uint16_t    length;                 /**< Length in 4 byte units */
    Window      win;
} xXIGetClientPointerReq;
#define sz_xXIGetClientPointerReq                 8

typedef struct {
    uint8_t     repType;                /**< Input extension major opcode */
    uint8_t     RepType;                /**< Always ::X_GetClientPointer */
    uint16_t    sequenceNumber;
    uint32_t    length;
    BOOL        set;                    /**< client pointer is set? */
    uint8_t     pad0;
    uint16_t    deviceid;
    uint32_t    pad1;
    uint32_t    pad2;
    uint32_t    pad3;
    uint32_t    pad4;
    uint32_t    pad5;
} xXIGetClientPointerReply;
#define sz_xXIGetClientPointerReply               32

/**
 * Set the input focus to the specified window.
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always ::X_XISetFocus */
    uint16_t    length;                 /**< Length in 4 byte units */
    Window      focus;
    Time        time;
    uint16_t    deviceid;
    uint16_t    pad0;
} xXISetFocusReq;
#define sz_xXISetFocusReq                       16

/**
 * Query the current input focus.
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always ::X_XIGetDeviceFocus */
    uint16_t    length;                 /**< Length in 4 byte units */
    uint16_t    deviceid;
    uint16_t    pad0;
} xXIGetFocusReq;
#define sz_xXIGetFocusReq                       8

typedef struct {
    uint8_t     repType;                /**< Input extension major opcode */
    uint8_t     RepType;                /**< Always ::X_XIGetFocus */
    uint16_t    sequenceNumber;
    uint32_t    length;
    Window      focus;
    uint32_t    pad1;
    uint32_t    pad2;
    uint32_t    pad3;
    uint32_t    pad4;
    uint32_t    pad5;
} xXIGetFocusReply;
#define sz_xXIGetFocusReply                     32

/**
 * Grab the given device.
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always ::X_XIGrabDevice */
    uint16_t    length;                 /**< Length in 4 byte units */
    Window      grab_window;
    Time        time;
    Cursor      cursor;
    uint16_t    deviceid;
    uint8_t     grab_mode;
    uint8_t     paired_device_mode;
    uint8_t     owner_events;
    uint8_t     pad;
    uint16_t    mask_len;
} xXIGrabDeviceReq;
#define sz_xXIGrabDeviceReq                     24

/**
 * Return codes from a XIPassiveGrabDevice request.
 */
typedef struct {
    uint32_t    modifiers;              /**< Modifier state */
    uint8_t     status;                 /**< Grab status code */
    uint8_t     pad0;
    uint16_t    pad1;
} xXIGrabModifierInfo;

typedef struct {
    uint8_t     repType;                /**< Input extension major opcode */
    uint8_t     RepType;                /**< Always ::X_XIGrabDevice */
    uint16_t    sequenceNumber;
    uint32_t    length;
    uint8_t     status;
    uint8_t     pad0;
    uint16_t    pad1;
    uint32_t    pad2;
    uint32_t    pad3;
    uint32_t    pad4;
    uint32_t    pad5;
    uint32_t    pad6;
} xXIGrabDeviceReply;
#define sz_xXIGrabDeviceReply                  32

/**
 * Ungrab the specified device.
 *
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always ::X_XIUngrabDevice */
    uint16_t    length;                 /**< Length in 4 byte units */
    Time        time;
    uint16_t    deviceid;
    uint16_t    pad;
} xXIUngrabDeviceReq;
#define sz_xXIUngrabDeviceReq                   12

/**
 * Allow or replay events on the specified grabbed device.
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always ::X_XIAllowEvents */
    uint16_t    length;                 /**< Length in 4 byte units */
    Time        time;
    uint16_t    deviceid;
    uint8_t     mode;
    uint8_t     pad;
} xXIAllowEventsReq;
#define sz_xXIAllowEventsReq                   12

/**
 * Allow or replay events on the specified grabbed device.
 * Since XI 2.2
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always ::X_XIAllowEvents */
    uint16_t    length;                 /**< Length in 4 byte units */
    Time        time;
    uint16_t    deviceid;
    uint8_t     mode;
    uint8_t     pad;
    uint32_t    touchid;                /**< Since XI 2.2 */
    Window      grab_window;            /**< Since XI 2.2 */
} xXI2_2AllowEventsReq;
#define sz_xXI2_2AllowEventsReq                20

/**
 * Passively grab the device.
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always ::X_XIPassiveGrabDevice */
    uint16_t    length;                 /**< Length in 4 byte units */
    Time        time;
    Window      grab_window;
    Cursor      cursor;
    uint32_t    detail;
    uint16_t    deviceid;
    uint16_t    num_modifiers;
    uint16_t    mask_len;
    uint8_t     grab_type;
    uint8_t     grab_mode;
    uint8_t     paired_device_mode;
    uint8_t     owner_events;
    uint16_t    pad1;
} xXIPassiveGrabDeviceReq;
#define sz_xXIPassiveGrabDeviceReq              32

typedef struct {
    uint8_t     repType;                /**< Input extension major opcode */
    uint8_t     RepType;                /**< Always ::X_XIPassiveGrabDevice */
    uint16_t    sequenceNumber;
    uint32_t    length;
    uint16_t    num_modifiers;
    uint16_t    pad1;
    uint32_t    pad2;
    uint32_t    pad3;
    uint32_t    pad4;
    uint32_t    pad5;
    uint32_t    pad6;
} xXIPassiveGrabDeviceReply;
#define sz_xXIPassiveGrabDeviceReply            32

/**
 * Delete a passive grab for the given device.
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always ::X_XIPassiveUngrabDevice */
    uint16_t    length;                 /**< Length in 4 byte units */
    Window      grab_window;
    uint32_t    detail;
    uint16_t    deviceid;
    uint16_t    num_modifiers;
    uint8_t     grab_type;
    uint8_t     pad0;
    uint16_t    pad1;
} xXIPassiveUngrabDeviceReq;
#define sz_xXIPassiveUngrabDeviceReq            20

/**
 * List all device properties on the specified device.
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always ::X_XIListProperties */
    uint16_t    length;                 /**< Length in 4 byte units */
    uint16_t    deviceid;
    uint16_t    pad;
} xXIListPropertiesReq;
#define sz_xXIListPropertiesReq                 8

typedef struct {
    uint8_t     repType;                /**< Input extension major opcode */
    uint8_t     RepType;                /**< Always ::X_XIListProperties */
    uint16_t    sequenceNumber;
    uint32_t    length;
    uint16_t    num_properties;
    uint16_t    pad0;
    uint32_t    pad1;
    uint32_t    pad2;
    uint32_t    pad3;
    uint32_t    pad4;
    uint32_t    pad5;
} xXIListPropertiesReply;
#define sz_xXIListPropertiesReply               32

/**
 * Change a property on the specified device.
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always ::X_XIChangeProperty */
    uint16_t    length;                 /**< Length in 4 byte units */
    uint16_t    deviceid;
    uint8_t     mode;
    uint8_t     format;
    Atom        property;
    Atom        type;
    uint32_t    num_items;
} xXIChangePropertyReq;
#define sz_xXIChangePropertyReq                 20

/**
 * Delete the specified property.
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always X_XIDeleteProperty */
    uint16_t    length;                 /**< Length in 4 byte units */
    uint16_t    deviceid;
    uint16_t    pad0;
    Atom        property;
} xXIDeletePropertyReq;
#define sz_xXIDeletePropertyReq                 12

/**
 * Query the specified property's values.
 */
typedef struct {
    uint8_t     reqType;
    uint8_t     ReqType;                /**< Always X_XIGetProperty */
    uint16_t    length;                 /**< Length in 4 byte units */
    uint16_t    deviceid;
#if defined(__cplusplus) || defined(c_plusplus)
    uint8_t     c_delete;
#else
    uint8_t     delete;
#endif
    uint8_t     pad0;
    Atom        property;
    Atom        type;
    uint32_t    offset;
    uint32_t    len;
} xXIGetPropertyReq;
#define sz_xXIGetPropertyReq                    24

typedef struct {
    uint8_t     repType;                /**< Input extension major opcode */
    uint8_t     RepType;                /**< Always X_XIGetProperty */
    uint16_t    sequenceNumber;
    uint32_t    length;
    Atom        type;
    uint32_t    bytes_after;
    uint32_t    num_items;
    uint8_t     format;
    uint8_t     pad0;
    uint16_t    pad1;
    uint32_t    pad2;
    uint32_t    pad3;
} xXIGetPropertyReply;
#define sz_xXIGetPropertyReply               32

typedef struct {
    uint16_t    deviceid;
    uint16_t    pad;
    Barrier     barrier;
    uint32_t    eventid;
} xXIBarrierReleasePointerInfo;

typedef struct {
    uint8_t     reqType;                /**< Input extension major opcode */
    uint8_t     ReqType;                /**< Always X_XIBarrierReleasePointer */
    uint16_t    length;
    uint32_t    num_barriers;
    /* array of xXIBarrierReleasePointerInfo */
} xXIBarrierReleasePointerReq;
#define sz_xXIBarrierReleasePointerReq       8

/*************************************************************************************
 *                                                                                   *
 *                                      EVENTS                                       *
 *                                                                                   *
 *************************************************************************************/

/**
 * Generic XI2 event header. All XI2 events use the same header.
 */
typedef struct
{
    uint8_t     type;
    uint8_t     extension;              /**< XI extension offset */
    uint16_t    sequenceNumber;
    uint32_t    length;
    uint16_t    evtype;
    uint16_t    deviceid;
    Time        time;
} xXIGenericDeviceEvent;

/**
 * Device hierarchy information.
 */
typedef struct
{
    uint16_t    deviceid;
    uint16_t    attachment;             /**< ID of master or paired device */
    uint8_t     use;                    /**< ::XIMasterKeyboard,
                                             ::XIMasterPointer,
                                             ::XISlaveKeyboard,
                                             ::XISlavePointer,
                                             ::XIFloatingSlave */
    BOOL        enabled;                /**< TRUE if the device is enabled */
    uint16_t    pad;
    uint32_t    flags;                  /**< ::XIMasterAdded, ::XIMasterRemoved,
                                             ::XISlaveAttached, ::XISlaveDetached,
                                             ::XISlaveAdded, ::XISlaveRemoved,
                                             ::XIDeviceEnabled, ::XIDeviceDisabled */
} xXIHierarchyInfo;

/**
 * The device hierarchy has been modified. This event includes the device
 * hierarchy after the modification has been applied.
 */
typedef struct
{
    uint8_t     type;                   /**< Always GenericEvent */
    uint8_t     extension;              /**< XI extension offset */
    uint16_t    sequenceNumber;
    uint32_t    length;                 /**< Length in 4 byte units */
    uint16_t    evtype;                 /**< ::XI_Hierarchy */
    uint16_t    deviceid;
    Time        time;
    uint32_t    flags;                  /**< ::XIMasterAdded, ::XIMasterDeleted,
                                             ::XISlaveAttached, ::XISlaveDetached,
                                             ::XISlaveAdded, ::XISlaveRemoved,
                                             ::XIDeviceEnabled, ::XIDeviceDisabled */
    uint16_t    num_info;
    uint16_t    pad0;
    uint32_t    pad1;
    uint32_t    pad2;
} xXIHierarchyEvent;

/**
 * A device has changed capabilities.
 */
typedef struct
{
    uint8_t     type;                   /**< Always GenericEvent */
    uint8_t     extension;              /**< XI extension offset */
    uint16_t    sequenceNumber;
    uint32_t    length;                 /**< Length in 4 byte units */
    uint16_t    evtype;                 /**< XI_DeviceChanged */
    uint16_t    deviceid;               /**< Device that has changed */
    Time        time;
    uint16_t    num_classes;            /**< Number of classes that have changed */
    uint16_t    sourceid;               /**< Source of the new classes */
    uint8_t     reason;                 /**< ::XISlaveSwitch, ::XIDeviceChange */
    uint8_t     pad0;
    uint16_t    pad1;
    uint32_t    pad2;
    uint32_t    pad3;
} xXIDeviceChangedEvent;

/**
 * The owner of a touch stream has passed on ownership to another client.
 */
typedef struct
{
    uint8_t     type;               /**< Always GenericEvent */
    uint8_t     extension;          /**< XI extension offset */
    uint16_t    sequenceNumber;
    uint32_t    length;             /**< Length in 4 byte units */
    uint16_t    evtype;             /**< XI_TouchOwnership */
    uint16_t    deviceid;           /**< Device that has changed */
    Time        time;
    uint32_t    touchid;
    Window      root;
    Window      event;
    Window      child;
/* └──────── 32 byte boundary ────────┘ */
    uint16_t    sourceid;
    uint16_t    pad0;
    uint32_t    flags;
    uint32_t    pad1;
    uint32_t    pad2;
} xXITouchOwnershipEvent;

/**
 * Default input event for pointer, keyboard or touch input.
 */
typedef struct
{
    uint8_t     type;                   /**< Always GenericEvent */
    uint8_t     extension;              /**< XI extension offset */
    uint16_t    sequenceNumber;
    uint32_t    length;                 /**< Length in 4 byte uints */
    uint16_t    evtype;
    uint16_t    deviceid;
    Time        time;
    uint32_t    detail;                 /**< Keycode or button */
    Window      root;
    Window      event;
    Window      child;
/* └──────── 32 byte boundary ────────┘ */
    FP1616      root_x;                 /**< Always screen coords, 16.16 fixed point */
    FP1616      root_y;
    FP1616      event_x;                /**< Always screen coords, 16.16 fixed point */
    FP1616      event_y;
    uint16_t    buttons_len;            /**< Len of button flags in 4 b units */
    uint16_t    valuators_len;          /**< Len of val. flags in 4 b units */
    uint16_t    sourceid;               /**< The source device */
    uint16_t    pad0;
    uint32_t    flags;                  /**< ::XIKeyRepeat */
    xXIModifierInfo     mods;
    xXIGroupInfo        group;
} xXIDeviceEvent;

/**
 * Sent when an input event is generated. RawEvents include valuator
 * information in both device-specific data (i.e. unaccelerated) and
 * processed data (i.e. accelerated, if applicable).
 */
typedef struct
{
    uint8_t     type;                   /**< Always GenericEvent */
    uint8_t     extension;              /**< XI extension offset */
    uint16_t    sequenceNumber;
    uint32_t    length;                 /**< Length in 4 byte uints */
    uint16_t    evtype;                 /**< ::XI_RawEvent */
    uint16_t    deviceid;
    Time        time;
    uint32_t    detail;
    uint16_t    sourceid;               /**< The source device (XI 2.1) */
    uint16_t    valuators_len;          /**< Length of trailing valuator
                                             mask in 4 byte units */
    uint32_t    flags;                  /**< ::XIKeyRepeat */
    uint32_t    pad2;
} xXIRawEvent;

/**
 * Note that the layout of root, event, child, root_x, root_y, event_x,
 * event_y must be identical to the xXIDeviceEvent.
 */
typedef struct
{
    uint8_t     type;                   /**< Always GenericEvent */
    uint8_t     extension;              /**< XI extension offset */
    uint16_t    sequenceNumber;
    uint32_t    length;                 /**< Length in 4 byte uints */
    uint16_t    evtype;                 /**< ::XI_Enter */
    uint16_t    deviceid;
    Time        time;
    uint16_t    sourceid;
    uint8_t     mode;
    uint8_t     detail;
    Window      root;
    Window      event;
    Window      child;
/* └──────── 32 byte boundary ────────┘ */
    FP1616      root_x;
    FP1616      root_y;
    FP1616      event_x;
    FP1616      event_y;
    BOOL        same_screen;
    BOOL        focus;
    uint16_t    buttons_len;            /**< Length of trailing button mask
                                             in 4 byte units */
    xXIModifierInfo     mods;
    xXIGroupInfo        group;
} xXIEnterEvent;

typedef xXIEnterEvent xXILeaveEvent;
typedef xXIEnterEvent xXIFocusInEvent;
typedef xXIEnterEvent xXIFocusOutEvent;

/**
 * Sent when a device property is created, modified or deleted. Does not
 * include property data, the client is required to query the data.
 */
typedef struct
{
    uint8_t     type;                   /**< Always GenericEvent */
    uint8_t     extension;              /**< XI extension offset */
    uint16_t    sequenceNumber;
    uint32_t    length;                 /**< Length in 4 byte units */
    uint16_t    evtype;                 /**< ::XI_PropertyEvent */
    uint16_t    deviceid;
    Time        time;
    Atom        property;
    uint8_t     what;                   /**< ::XIPropertyDeleted,
                                             ::XIPropertyCreated,
                                             ::XIPropertyMotified */
    uint8_t     pad0;
    uint16_t    pad1;
    uint32_t    pad2;
    uint32_t    pad3;
} xXIPropertyEvent;

typedef struct
{
    uint8_t     type;                   /**< Always GenericEvent */
    uint8_t     extension;              /**< XI extension offset */
    uint16_t    sequenceNumber;
    uint32_t    length;                 /**< Length in 4 byte units */
    uint16_t    evtype;                 /**< ::XI_BarrierHit or ::XI_BarrierLeave */
    uint16_t    deviceid;
    Time        time;
    uint32_t    eventid;
    Window      root;
    Window      event;
    Barrier     barrier;
/* └──────── 32 byte boundary ────────┘ */
    uint32_t    dtime;
    uint32_t    flags;                  /**< ::XIBarrierPointerReleased
                                             ::XIBarrierDeviceIsGrabbed */
    uint16_t    sourceid;
    int16_t     pad;
    FP1616      root_x;
    FP1616      root_y;
    FP3232      dx;
    FP3232      dy;
} xXIBarrierEvent;

typedef xXIBarrierEvent xXIBarrierHitEvent;
typedef xXIBarrierEvent xXIBarrierPointerReleasedEvent;
typedef xXIBarrierEvent xXIBarrierLeaveEvent;

#undef Window
#undef Time
#undef Atom
#undef Cursor
#undef Barrier

#endif /* _XI2PROTO_H_ */

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