gohook/hook/x11/input.h
2018-09-17 14:09:59 -04:00

94 lines
2.9 KiB
C

/* Copyright (C) 2006-2017 Alexander Barker.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*/
#define USE_XKBCOMMON 0
//#define _included_input_helper 0
#ifndef _included_input_helper
#define _included_input_helper
#include <stdint.h>
#include <X11/Xlib.h>
#ifdef USE_XKBCOMMON
#include <X11/Xlib-xcb.h>
#include <xkbcommon/xkbcommon.h>
#include <xkbcommon/xkbcommon-x11.h>
#endif
// Virtual button codes that are not defined by X11.
#define Button1 1
#define Button2 2
#define Button3 3
#define WheelUp 4
#define WheelDown 5
#define WheelLeft 6
#define WheelRight 7
#define XButton1 8
#define XButton2 9
/* Converts an X11 key symbol to a single Unicode character. No direct X11
* functionality exists to provide this information.
*/
extern size_t keysym_to_unicode(KeySym keysym, uint16_t *buffer, size_t size);
/* Convert a single Unicode character to an X11 key symbol. This function
* provides a better translation than XStringToKeysym() for Unicode characters.
*/
extern KeySym unicode_to_keysym(uint16_t unicode);
/* Converts an X11 key code to the appropriate keyboard scan code.
*/
extern uint16_t keycode_to_scancode(KeyCode keycode);
/* Converts a keyboard scan code to the appropriate X11 key code.
*/
extern KeyCode scancode_to_keycode(uint16_t scancode);
#ifdef USE_XKBCOMMON
/* Converts an X11 key code to a Unicode character sequence. libXKBCommon support
* is required for this method.
*/
extern size_t keycode_to_unicode(struct xkb_state* state, KeyCode keycode, uint16_t *buffer, size_t size);
/* Create a xkb_state structure and return a pointer to it.
*/
extern struct xkb_state * create_xkb_state(struct xkb_context *context, xcb_connection_t *connection);
/* Release xkb_state structure created by create_xkb_state().
*/
extern void destroy_xkb_state(struct xkb_state* state);
#else
/* Converts an X11 key code and event mask to the appropriate X11 key symbol.
* This functions in much the same way as XKeycodeToKeysym() but allows for a
* faster and more flexible lookup.
*/
extern KeySym keycode_to_keysym(KeyCode keycode, unsigned int modifier_mask);
#endif
/* Initialize items required for KeyCodeToKeySym() and KeySymToUnicode()
* functionality. This method is called by OnLibraryLoad() and may need to be
* called in combination with UnloadInputHelper() if the native keyboard layout
* is changed.
*/
extern void load_input_helper();
/* De-initialize items required for KeyCodeToKeySym() and KeySymToUnicode()
* functionality. This method is called by OnLibraryUnload() and may need to be
* called in combination with LoadInputHelper() if the native keyboard layout
* is changed.
*/
extern void unload_input_helper();
#endif