SDL_cursor_c.h
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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/* Useful variables and functions from SDL_cursor.c */
#include "SDL_mouse.h"
extern int SDL_CursorInit(Uint32 flags);
extern void SDL_CursorPaletteChanged(void);
extern void SDL_DrawCursor(SDL_Surface *screen);
extern void SDL_DrawCursorNoLock(SDL_Surface *screen);
extern void SDL_EraseCursor(SDL_Surface *screen);
extern void SDL_EraseCursorNoLock(SDL_Surface *screen);
extern void SDL_UpdateCursor(SDL_Surface *screen);
extern void SDL_ResetCursor(void);
extern void SDL_MoveCursor(int x, int y);
extern void SDL_CursorQuit(void);
#define INLINE_MOUSELOCK
#ifdef INLINE_MOUSELOCK
/* Inline (macro) versions of the mouse lock functions */
#include "SDL_mutex.h"
extern SDL_mutex *SDL_cursorlock;
#define SDL_LockCursor() \
do { \
if ( SDL_cursorlock ) { \
SDL_mutexP(SDL_cursorlock); \
} \
} while ( 0 )
#define SDL_UnlockCursor() \
do { \
if ( SDL_cursorlock ) { \
SDL_mutexV(SDL_cursorlock); \
} \
} while ( 0 )
#else
extern void SDL_LockCursor(void);
extern void SDL_UnlockCursor(void);
#endif /* INLINE_MOUSELOCK */
/* Only for low-level mouse cursor drawing */
extern SDL_Cursor *SDL_cursor;
extern void SDL_MouseRect(SDL_Rect *area);
/* State definitions for the SDL cursor */
#define CURSOR_VISIBLE 0x01
#define CURSOR_USINGSW 0x10
#define SHOULD_DRAWCURSOR(X) \
(((X)&(CURSOR_VISIBLE|CURSOR_USINGSW)) == \
(CURSOR_VISIBLE|CURSOR_USINGSW))
extern volatile int SDL_cursorstate;