2018-09-18 02:09:59 +08:00
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/* Copyright (C) 2006-2017 Alexander Barker.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*/
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2017-02-06 16:55:01 +08:00
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#define USE_XKBCOMMON 0
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//#define _included_input_helper 0
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#ifndef _included_input_helper
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#define _included_input_helper
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#include <stdint.h>
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#include <X11/Xlib.h>
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#ifdef USE_XKBCOMMON
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#include <X11/Xlib-xcb.h>
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#include <xkbcommon/xkbcommon.h>
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#include <xkbcommon/xkbcommon-x11.h>
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#endif
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// Virtual button codes that are not defined by X11.
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#define Button1 1
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#define Button2 2
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#define Button3 3
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#define WheelUp 4
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#define WheelDown 5
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#define WheelLeft 6
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#define WheelRight 7
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#define XButton1 8
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#define XButton2 9
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/* Converts an X11 key symbol to a single Unicode character. No direct X11
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* functionality exists to provide this information.
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*/
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extern size_t keysym_to_unicode(KeySym keysym, uint16_t *buffer, size_t size);
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/* Convert a single Unicode character to an X11 key symbol. This function
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* provides a better translation than XStringToKeysym() for Unicode characters.
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*/
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extern KeySym unicode_to_keysym(uint16_t unicode);
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/* Converts an X11 key code to the appropriate keyboard scan code.
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*/
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extern uint16_t keycode_to_scancode(KeyCode keycode);
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/* Converts a keyboard scan code to the appropriate X11 key code.
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*/
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extern KeyCode scancode_to_keycode(uint16_t scancode);
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#ifdef USE_XKBCOMMON
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/* Converts an X11 key code to a Unicode character sequence. libXKBCommon support
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* is required for this method.
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*/
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extern size_t keycode_to_unicode(struct xkb_state* state, KeyCode keycode, uint16_t *buffer, size_t size);
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/* Create a xkb_state structure and return a pointer to it.
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*/
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extern struct xkb_state * create_xkb_state(struct xkb_context *context, xcb_connection_t *connection);
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/* Release xkb_state structure created by create_xkb_state().
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*/
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extern void destroy_xkb_state(struct xkb_state* state);
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#else
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/* Converts an X11 key code and event mask to the appropriate X11 key symbol.
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* This functions in much the same way as XKeycodeToKeysym() but allows for a
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* faster and more flexible lookup.
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*/
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extern KeySym keycode_to_keysym(KeyCode keycode, unsigned int modifier_mask);
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#endif
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/* Initialize items required for KeyCodeToKeySym() and KeySymToUnicode()
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* functionality. This method is called by OnLibraryLoad() and may need to be
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* called in combination with UnloadInputHelper() if the native keyboard layout
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* is changed.
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*/
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extern void load_input_helper();
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/* De-initialize items required for KeyCodeToKeySym() and KeySymToUnicode()
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* functionality. This method is called by OnLibraryUnload() and may need to be
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* called in combination with LoadInputHelper() if the native keyboard layout
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* is changed.
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*/
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extern void unload_input_helper();
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#endif
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