2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 "@(#) $Id: SDL_mouse.h,v 1.6 2002/08/19 18:09:44 slouken Exp $";
28 /* Include file for SDL mouse event handling */
33 #include "SDL_types.h"
34 #include "SDL_video.h"
36 #include "begin_code.h"
37 /* Set up for C function definitions, even when using C++ */
42 typedef struct WMcursor WMcursor; /* Implementation dependent */
44 SDL_Rect area; /* The area of the mouse cursor */
45 Sint16 hot_x, hot_y; /* The "tip" of the cursor */
46 Uint8 *data; /* B/W cursor data */
47 Uint8 *mask; /* B/W cursor mask */
48 Uint8 *save[2]; /* Place to save cursor area */
49 WMcursor *wm_cursor; /* Window-manager cursor */
52 /* Function prototypes */
54 * Retrieve the current state of the mouse.
55 * The current button state is returned as a button bitmask, which can
56 * be tested using the SDL_BUTTON(X) macros, and x and y are set to the
57 * current mouse cursor position. You can pass NULL for either x or y.
59 extern DECLSPEC Uint8 SDLCALL SDL_GetMouseState(int *x, int *y);
62 * Retrieve the current state of the mouse.
63 * The current button state is returned as a button bitmask, which can
64 * be tested using the SDL_BUTTON(X) macros, and x and y are set to the
65 * mouse deltas since the last call to SDL_GetRelativeMouseState().
67 extern DECLSPEC Uint8 SDLCALL SDL_GetRelativeMouseState(int *x, int *y);
70 * Set the position of the mouse cursor (generates a mouse motion event)
72 extern DECLSPEC void SDLCALL SDL_WarpMouse(Uint16 x, Uint16 y);
75 * Create a cursor using the specified data and mask (in MSB format).
76 * The cursor width must be a multiple of 8 bits.
78 * The cursor is created in black and white according to the following:
79 * data mask resulting pixel on screen
83 * 1 0 Inverted color if possible, black if not.
85 * Cursors created with this function must be freed with SDL_FreeCursor().
87 extern DECLSPEC SDL_Cursor * SDLCALL SDL_CreateCursor
88 (Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y);
91 * Set the currently active cursor to the specified one.
92 * If the cursor is currently visible, the change will be immediately
93 * represented on the display.
95 extern DECLSPEC void SDLCALL SDL_SetCursor(SDL_Cursor *cursor);
98 * Returns the currently active cursor.
100 extern DECLSPEC SDL_Cursor * SDLCALL SDL_GetCursor(void);
103 * Deallocates a cursor created with SDL_CreateCursor().
105 extern DECLSPEC void SDLCALL SDL_FreeCursor(SDL_Cursor *cursor);
108 * Toggle whether or not the cursor is shown on the screen.
109 * The cursor start off displayed, but can be turned off.
110 * SDL_ShowCursor() returns 1 if the cursor was being displayed
111 * before the call, or 0 if it was not. You can query the current
112 * state by passing a 'toggle' value of -1.
114 extern DECLSPEC int SDLCALL SDL_ShowCursor(int toggle);
116 /* Used as a mask when testing buttons in buttonstate
117 Button 1: Left mouse button
118 Button 2: Middle mouse button
119 Button 3: Right mouse button
120 Button 4: Mouse wheel up (may also be a real button)
121 Button 5: Mouse wheel down (may also be a real button)
123 #define SDL_BUTTON(X) (SDL_PRESSED<<(X-1))
124 #define SDL_BUTTON_LEFT 1
125 #define SDL_BUTTON_MIDDLE 2
126 #define SDL_BUTTON_RIGHT 3
127 #define SDL_BUTTON_WHEELUP 4
128 #define SDL_BUTTON_WHEELDOWN 5
129 #define SDL_BUTTON_LMASK SDL_BUTTON(SDL_BUTTON_LEFT)
130 #define SDL_BUTTON_MMASK SDL_BUTTON(SDL_BUTTON_MIDDLE)
131 #define SDL_BUTTON_RMASK SDL_BUTTON(SDL_BUTTON_RIGHT)
134 /* Ends C function definitions when using C++ */
138 #include "close_code.h"
140 #endif /* _SDL_mouse_h */