Mercurial > sdl-ios-xcode
annotate include/SDL_mouse.h @ 4262:800f3cb78e45 SDL-1.2
Fixed strict aliasing (or inline asm?) issue.
Some versions of GCC need this fix or alpha blending is broken.
Fixes Bugzilla #648.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Tue, 29 Sep 2009 04:03:58 +0000 |
| parents | 4c4113c2162c |
| children |
| rev | line source |
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| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 4159 | 3 Copyright (C) 1997-2009 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 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 | |
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 4217 | 23 /** @file SDL_mouse.h |
| 24 * Include file for SDL mouse event handling | |
| 25 */ | |
| 0 | 26 |
| 27 #ifndef _SDL_mouse_h | |
| 28 #define _SDL_mouse_h | |
| 29 | |
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30 #include "SDL_stdinc.h" |
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31 #include "SDL_error.h" |
| 0 | 32 #include "SDL_video.h" |
| 33 | |
| 34 #include "begin_code.h" | |
| 35 /* Set up for C function definitions, even when using C++ */ | |
| 36 #ifdef __cplusplus | |
| 37 extern "C" { | |
| 38 #endif | |
| 39 | |
| 4217 | 40 typedef struct WMcursor WMcursor; /**< Implementation dependent */ |
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Date: Mon, 3 May 2004 03:15:01 +0100
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41 typedef struct SDL_Cursor { |
| 4217 | 42 SDL_Rect area; /**< The area of the mouse cursor */ |
| 43 Sint16 hot_x, hot_y; /**< The "tip" of the cursor */ | |
| 44 Uint8 *data; /**< B/W cursor data */ | |
| 45 Uint8 *mask; /**< B/W cursor mask */ | |
| 46 Uint8 *save[2]; /**< Place to save cursor area */ | |
| 47 WMcursor *wm_cursor; /**< Window-manager cursor */ | |
| 0 | 48 } SDL_Cursor; |
| 49 | |
| 50 /* Function prototypes */ | |
| 4217 | 51 /** |
| 0 | 52 * Retrieve the current state of the mouse. |
| 53 * The current button state is returned as a button bitmask, which can | |
| 54 * be tested using the SDL_BUTTON(X) macros, and x and y are set to the | |
| 55 * current mouse cursor position. You can pass NULL for either x or y. | |
| 56 */ | |
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57 extern DECLSPEC Uint8 SDLCALL SDL_GetMouseState(int *x, int *y); |
| 0 | 58 |
| 4217 | 59 /** |
| 0 | 60 * Retrieve the current state of the mouse. |
| 61 * The current button state is returned as a button bitmask, which can | |
| 62 * be tested using the SDL_BUTTON(X) macros, and x and y are set to the | |
| 63 * mouse deltas since the last call to SDL_GetRelativeMouseState(). | |
| 64 */ | |
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65 extern DECLSPEC Uint8 SDLCALL SDL_GetRelativeMouseState(int *x, int *y); |
| 0 | 66 |
| 4217 | 67 /** |
| 0 | 68 * Set the position of the mouse cursor (generates a mouse motion event) |
| 69 */ | |
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70 extern DECLSPEC void SDLCALL SDL_WarpMouse(Uint16 x, Uint16 y); |
| 0 | 71 |
| 4217 | 72 /** |
| 0 | 73 * Create a cursor using the specified data and mask (in MSB format). |
| 74 * The cursor width must be a multiple of 8 bits. | |
| 75 * | |
| 76 * The cursor is created in black and white according to the following: | |
| 77 * data mask resulting pixel on screen | |
| 78 * 0 1 White | |
| 79 * 1 1 Black | |
| 80 * 0 0 Transparent | |
| 81 * 1 0 Inverted color if possible, black if not. | |
| 82 * | |
| 83 * Cursors created with this function must be freed with SDL_FreeCursor(). | |
| 84 */ | |
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85 extern DECLSPEC SDL_Cursor * SDLCALL SDL_CreateCursor |
| 0 | 86 (Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y); |
| 87 | |
| 4217 | 88 /** |
| 0 | 89 * Set the currently active cursor to the specified one. |
| 90 * If the cursor is currently visible, the change will be immediately | |
| 91 * represented on the display. | |
| 92 */ | |
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93 extern DECLSPEC void SDLCALL SDL_SetCursor(SDL_Cursor *cursor); |
| 0 | 94 |
| 4217 | 95 /** |
| 0 | 96 * Returns the currently active cursor. |
| 97 */ | |
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98 extern DECLSPEC SDL_Cursor * SDLCALL SDL_GetCursor(void); |
| 0 | 99 |
| 4217 | 100 /** |
| 0 | 101 * Deallocates a cursor created with SDL_CreateCursor(). |
| 102 */ | |
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103 extern DECLSPEC void SDLCALL SDL_FreeCursor(SDL_Cursor *cursor); |
| 0 | 104 |
| 4217 | 105 /** |
| 0 | 106 * Toggle whether or not the cursor is shown on the screen. |
| 107 * The cursor start off displayed, but can be turned off. | |
| 108 * SDL_ShowCursor() returns 1 if the cursor was being displayed | |
| 109 * before the call, or 0 if it was not. You can query the current | |
| 110 * state by passing a 'toggle' value of -1. | |
| 111 */ | |
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112 extern DECLSPEC int SDLCALL SDL_ShowCursor(int toggle); |
| 0 | 113 |
| 4217 | 114 /*@{*/ |
| 115 /** Used as a mask when testing buttons in buttonstate | |
| 116 * Button 1: Left mouse button | |
| 117 * Button 2: Middle mouse button | |
| 118 * Button 3: Right mouse button | |
| 119 * Button 4: Mouse wheel up (may also be a real button) | |
| 120 * Button 5: Mouse wheel down (may also be a real button) | |
| 0 | 121 */ |
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It's now possible to build SDL without any C runtime at all on Windows,
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122 #define SDL_BUTTON(X) (1 << ((X)-1)) |
| 0 | 123 #define SDL_BUTTON_LEFT 1 |
| 124 #define SDL_BUTTON_MIDDLE 2 | |
| 125 #define SDL_BUTTON_RIGHT 3 | |
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Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
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126 #define SDL_BUTTON_WHEELUP 4 |
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127 #define SDL_BUTTON_WHEELDOWN 5 |
| 4113 | 128 #define SDL_BUTTON_X1 6 |
| 129 #define SDL_BUTTON_X2 7 | |
| 0 | 130 #define SDL_BUTTON_LMASK SDL_BUTTON(SDL_BUTTON_LEFT) |
| 131 #define SDL_BUTTON_MMASK SDL_BUTTON(SDL_BUTTON_MIDDLE) | |
| 132 #define SDL_BUTTON_RMASK SDL_BUTTON(SDL_BUTTON_RIGHT) | |
| 4113 | 133 #define SDL_BUTTON_X1MASK SDL_BUTTON(SDL_BUTTON_X1) |
| 134 #define SDL_BUTTON_X2MASK SDL_BUTTON(SDL_BUTTON_X2) | |
| 4217 | 135 /*@}*/ |
| 0 | 136 |
| 137 /* Ends C function definitions when using C++ */ | |
| 138 #ifdef __cplusplus | |
| 139 } | |
| 140 #endif | |
| 141 #include "close_code.h" | |
| 142 | |
| 143 #endif /* _SDL_mouse_h */ |