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141 lines
4.6 KiB
C
141 lines
4.6 KiB
C
/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2009 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,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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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
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License along with this library; if not, write to the Free Software
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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 file for SDL mouse event handling */
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#ifndef _SDL_mouse_h
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#define _SDL_mouse_h
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#include "SDL_stdinc.h"
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#include "SDL_error.h"
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#include "SDL_video.h"
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#include "begin_code.h"
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct WMcursor WMcursor; /* Implementation dependent */
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typedef struct SDL_Cursor {
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SDL_Rect area; /* The area of the mouse cursor */
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Sint16 hot_x, hot_y; /* The "tip" of the cursor */
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Uint8 *data; /* B/W cursor data */
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Uint8 *mask; /* B/W cursor mask */
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Uint8 *save[2]; /* Place to save cursor area */
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WMcursor *wm_cursor; /* Window-manager cursor */
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} SDL_Cursor;
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/* Function prototypes */
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/*
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* Retrieve the current state of the mouse.
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* The current button state is returned as a button bitmask, which can
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* be tested using the SDL_BUTTON(X) macros, and x and y are set to the
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* current mouse cursor position. You can pass NULL for either x or y.
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*/
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extern DECLSPEC Uint8 SDLCALL SDL_GetMouseState(int *x, int *y);
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/*
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* Retrieve the current state of the mouse.
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* The current button state is returned as a button bitmask, which can
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* be tested using the SDL_BUTTON(X) macros, and x and y are set to the
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* mouse deltas since the last call to SDL_GetRelativeMouseState().
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*/
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extern DECLSPEC Uint8 SDLCALL SDL_GetRelativeMouseState(int *x, int *y);
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/*
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* Set the position of the mouse cursor (generates a mouse motion event)
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*/
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extern DECLSPEC void SDLCALL SDL_WarpMouse(Uint16 x, Uint16 y);
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/*
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* Create a cursor using the specified data and mask (in MSB format).
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* The cursor width must be a multiple of 8 bits.
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*
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* The cursor is created in black and white according to the following:
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* data mask resulting pixel on screen
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* 0 1 White
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* 1 1 Black
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* 0 0 Transparent
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* 1 0 Inverted color if possible, black if not.
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*
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* Cursors created with this function must be freed with SDL_FreeCursor().
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*/
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extern DECLSPEC SDL_Cursor * SDLCALL SDL_CreateCursor
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(Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y);
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/*
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* Set the currently active cursor to the specified one.
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* If the cursor is currently visible, the change will be immediately
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* represented on the display.
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*/
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extern DECLSPEC void SDLCALL SDL_SetCursor(SDL_Cursor *cursor);
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/*
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* Returns the currently active cursor.
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*/
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extern DECLSPEC SDL_Cursor * SDLCALL SDL_GetCursor(void);
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/*
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* Deallocates a cursor created with SDL_CreateCursor().
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*/
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extern DECLSPEC void SDLCALL SDL_FreeCursor(SDL_Cursor *cursor);
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/*
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* Toggle whether or not the cursor is shown on the screen.
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* The cursor start off displayed, but can be turned off.
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* SDL_ShowCursor() returns 1 if the cursor was being displayed
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* before the call, or 0 if it was not. You can query the current
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* state by passing a 'toggle' value of -1.
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*/
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extern DECLSPEC int SDLCALL SDL_ShowCursor(int toggle);
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/* Used as a mask when testing buttons in buttonstate
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Button 1: Left mouse button
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Button 2: Middle mouse button
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Button 3: Right mouse button
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Button 4: Mouse wheel up (may also be a real button)
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Button 5: Mouse wheel down (may also be a real button)
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*/
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#define SDL_BUTTON(X) (1 << ((X)-1))
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#define SDL_BUTTON_LEFT 1
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#define SDL_BUTTON_MIDDLE 2
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#define SDL_BUTTON_RIGHT 3
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#define SDL_BUTTON_WHEELUP 4
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#define SDL_BUTTON_WHEELDOWN 5
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#define SDL_BUTTON_X1 6
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#define SDL_BUTTON_X2 7
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#define SDL_BUTTON_LMASK SDL_BUTTON(SDL_BUTTON_LEFT)
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#define SDL_BUTTON_MMASK SDL_BUTTON(SDL_BUTTON_MIDDLE)
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#define SDL_BUTTON_RMASK SDL_BUTTON(SDL_BUTTON_RIGHT)
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#define SDL_BUTTON_X1MASK SDL_BUTTON(SDL_BUTTON_X1)
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#define SDL_BUTTON_X2MASK SDL_BUTTON(SDL_BUTTON_X2)
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/* Ends C function definitions when using C++ */
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#ifdef __cplusplus
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}
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#endif
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#include "close_code.h"
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#endif /* _SDL_mouse_h */
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