annotate include/SDL_mouse.h @ 534:1ea658a3dd52

Turn on enums always ints for CodeWarrior (thanks Darrell!)
author Sam Lantinga <slouken@libsdl.org>
date Tue, 22 Oct 2002 21:35:49 +0000
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1 /*
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2 SDL - Simple DirectMedia Layer
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f6ffac90895c Updated copyright information for 2002
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
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4
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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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 /* Include file for SDL mouse event handling */
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29
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30 #ifndef _SDL_mouse_h
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31 #define _SDL_mouse_h
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32
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33 #include "SDL_types.h"
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34 #include "SDL_video.h"
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35
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36 #include "begin_code.h"
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37 /* Set up for C function definitions, even when using C++ */
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38 #ifdef __cplusplus
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39 extern "C" {
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40 #endif
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41
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42 typedef struct WMcursor WMcursor; /* Implementation dependent */
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43 typedef struct {
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44 SDL_Rect area; /* The area of the mouse cursor */
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45 Sint16 hot_x, hot_y; /* The "tip" of the cursor */
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46 Uint8 *data; /* B/W cursor data */
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47 Uint8 *mask; /* B/W cursor mask */
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48 Uint8 *save[2]; /* Place to save cursor area */
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49 WMcursor *wm_cursor; /* Window-manager cursor */
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50 } SDL_Cursor;
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51
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52 /* Function prototypes */
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53 /*
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54 * Retrieve the current state of the mouse.
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55 * The current button state is returned as a button bitmask, which can
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56 * be tested using the SDL_BUTTON(X) macros, and x and y are set to the
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57 * current mouse cursor position. You can pass NULL for either x or y.
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58 */
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59 extern DECLSPEC Uint8 SDLCALL SDL_GetMouseState(int *x, int *y);
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60
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61 /*
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62 * Retrieve the current state of the mouse.
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63 * The current button state is returned as a button bitmask, which can
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64 * be tested using the SDL_BUTTON(X) macros, and x and y are set to the
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65 * mouse deltas since the last call to SDL_GetRelativeMouseState().
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66 */
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67 extern DECLSPEC Uint8 SDLCALL SDL_GetRelativeMouseState(int *x, int *y);
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68
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69 /*
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70 * Set the position of the mouse cursor (generates a mouse motion event)
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71 */
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72 extern DECLSPEC void SDLCALL SDL_WarpMouse(Uint16 x, Uint16 y);
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73
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74 /*
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75 * Create a cursor using the specified data and mask (in MSB format).
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76 * The cursor width must be a multiple of 8 bits.
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77 *
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78 * The cursor is created in black and white according to the following:
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79 * data mask resulting pixel on screen
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80 * 0 1 White
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81 * 1 1 Black
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82 * 0 0 Transparent
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83 * 1 0 Inverted color if possible, black if not.
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84 *
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85 * Cursors created with this function must be freed with SDL_FreeCursor().
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86 */
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87 extern DECLSPEC SDL_Cursor * SDLCALL SDL_CreateCursor
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88 (Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y);
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89
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90 /*
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91 * Set the currently active cursor to the specified one.
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92 * If the cursor is currently visible, the change will be immediately
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93 * represented on the display.
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94 */
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95 extern DECLSPEC void SDLCALL SDL_SetCursor(SDL_Cursor *cursor);
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96
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97 /*
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98 * Returns the currently active cursor.
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99 */
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100 extern DECLSPEC SDL_Cursor * SDLCALL SDL_GetCursor(void);
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101
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102 /*
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103 * Deallocates a cursor created with SDL_CreateCursor().
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104 */
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105 extern DECLSPEC void SDLCALL SDL_FreeCursor(SDL_Cursor *cursor);
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106
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107 /*
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108 * Toggle whether or not the cursor is shown on the screen.
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109 * The cursor start off displayed, but can be turned off.
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110 * SDL_ShowCursor() returns 1 if the cursor was being displayed
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111 * before the call, or 0 if it was not. You can query the current
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112 * state by passing a 'toggle' value of -1.
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113 */
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114 extern DECLSPEC int SDLCALL SDL_ShowCursor(int toggle);
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115
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116 /* Used as a mask when testing buttons in buttonstate
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117 Button 1: Left mouse button
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118 Button 2: Middle mouse button
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119 Button 3: Right mouse button
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120 Button 4: Mouse wheel up (may also be a real button)
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121 Button 5: Mouse wheel down (may also be a real button)
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122 */
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123 #define SDL_BUTTON(X) (SDL_PRESSED<<(X-1))
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124 #define SDL_BUTTON_LEFT 1
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125 #define SDL_BUTTON_MIDDLE 2
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126 #define SDL_BUTTON_RIGHT 3
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127 #define SDL_BUTTON_WHEELUP 4
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128 #define SDL_BUTTON_WHEELDOWN 5
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129 #define SDL_BUTTON_LMASK SDL_BUTTON(SDL_BUTTON_LEFT)
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130 #define SDL_BUTTON_MMASK SDL_BUTTON(SDL_BUTTON_MIDDLE)
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131 #define SDL_BUTTON_RMASK SDL_BUTTON(SDL_BUTTON_RIGHT)
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132
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133
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134 /* Ends C function definitions when using C++ */
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135 #ifdef __cplusplus
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136 }
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137 #endif
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138 #include "close_code.h"
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139
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140 #endif /* _SDL_mouse_h */