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annotate include/SDL_mouse.h @ 3502:98a819296cdc

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Whenever a window becomes fullscreen, shown, unminimized, and has input focus it will change the display to the corresponding fullscreen video mode. If it loses any of those properties the desktop mode will be restored.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 01 Dec 2009 08:56:12 +0000
parents d3baf5ac4e37
children f8816ffa210b
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 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 Lesser General Public
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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.
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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 Lesser 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 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
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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 /**
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24 * \file SDL_mouse.h
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25 *
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26 * Include file for SDL mouse event handling.
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27 */
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28
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29 #ifndef _SDL_mouse_h
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30 #define _SDL_mouse_h
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31
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32 #include "SDL_stdinc.h"
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33 #include "SDL_error.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 /* *INDENT-OFF* */
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40 extern "C" {
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41 /* *INDENT-ON* */
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42 #endif
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43
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44 typedef struct SDL_Cursor SDL_Cursor; /* Implementation dependent */
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45
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46 /* Function prototypes */
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47
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48 /**
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49 * \brief Get the number of mouse input devices available.
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50 *
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51 * \sa SDL_SelectMouse()
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52 */
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53 extern DECLSPEC int SDLCALL SDL_GetNumMice(void);
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54
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55 /**
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56 * \brief Gets the name of a mouse with the given index.
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57 *
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58 * \param index is the index of the mouse, which name is to be returned.
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59 *
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60 * \return the name of the mouse with the specified index
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61 */
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62 extern DECLSPEC char *SDLCALL SDL_GetMouseName(int index);
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63
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64 /**
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65 * \brief Set the index of the currently selected mouse.
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66 *
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67 * \return The index of the previously selected mouse.
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68 *
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69 * \note You can query the currently selected mouse by passing an index of -1.
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70 *
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71 * \sa SDL_GetNumMice()
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72 */
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73 extern DECLSPEC int SDLCALL SDL_SelectMouse(int index);
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75 /**
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76 * \brief Get the window which currently has focus for the specified mouse.
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77 */
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78 extern DECLSPEC SDL_WindowID SDLCALL SDL_GetMouseFocusWindow(int index);
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79
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80 /**
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81 * \brief Set relative mouse mode for the specified mouse.
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82 *
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83 * \param enabled Whether or not to enable relative mode
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84 *
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85 * \return 0 on success, or -1 if relative mode is not supported.
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86 *
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87 * While the mouse is in relative mode, the cursor is hidden, and the
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88 * driver will try to report continuous motion in the current window.
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89 * Only relative motion events will be delivered, the mouse position
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90 * will not change.
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91 *
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92 * \note This function will flush any pending mouse motion.
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93 *
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94 * \sa SDL_GetRelativeMouseMode()
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95 */
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96 extern DECLSPEC int SDLCALL SDL_SetRelativeMouseMode(int index,
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97 SDL_bool enabled);
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98
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99 /**
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100 * \brief Query whether relative mouse mode is enabled for the specified mouse.
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101 *
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102 * \sa SDL_SetRelativeMouseMode()
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103 */
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104 extern DECLSPEC SDL_bool SDLCALL SDL_GetRelativeMouseMode(int index);
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105
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106 /**
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107 * \brief Retrieve the current state of the specified mouse.
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108 *
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109 * The current button state is returned as a button bitmask, which can
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110 * be tested using the SDL_BUTTON(X) macros, and x and y are set to the
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111 * mouse cursor position relative to the focus window for the currently
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112 * selected mouse. You can pass NULL for either x or y.
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113 */
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114 extern DECLSPEC Uint8 SDLCALL SDL_GetMouseState(int index, int *x, int *y);
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115
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116 /**
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117 * \brief Retrieve the state of the specified mouse.
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118 *
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119 * The current button state is returned as a button bitmask, which can
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120 * be tested using the SDL_BUTTON(X) macros, and x and y are set to the
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121 * mouse deltas since the last call to SDL_GetRelativeMouseState().
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122 */
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123 extern DECLSPEC Uint8 SDLCALL SDL_GetRelativeMouseState(int index, int *x,
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124 int *y);
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125
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126 /**
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127 * \brief Moves the currently selected mouse to the given position within the window.
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128 *
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129 * \param windowID The window to move the mouse into, or 0 for the current mouse focus
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130 * \param x The x coordinate within the window
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131 * \param y The y coordinate within the window
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132 *
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133 * \note This function generates a mouse motion event
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134 */
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135 extern DECLSPEC void SDLCALL SDL_WarpMouseInWindow(SDL_WindowID windowID,
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136 int x, int y);
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137
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138 /**
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139 * \brief Create a cursor for the currently selected mouse, using the
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140 * specified bitmap data and mask (in MSB format).
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141 *
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142 * The cursor width must be a multiple of 8 bits.
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143 *
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144 * The cursor is created in black and white according to the following:
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145 * <table>
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146 * <tr><td> data </td><td> mask </td><td> resulting pixel on screen </td></tr>
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147 * <tr><td> 0 </td><td> 1 </td><td> White </td></tr>
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148 * <tr><td> 1 </td><td> 1 </td><td> Black </td></tr>
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149 * <tr><td> 0 </td><td> 0 </td><td> Transparent </td></tr>
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150 * <tr><td> 1 </td><td> 0 </td><td> Inverted color if possible, black
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151 if not. </td></tr>
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152 * </table>
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153 *
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154 * \sa SDL_FreeCursor()
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155 */
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156 extern DECLSPEC SDL_Cursor *SDLCALL SDL_CreateCursor(const Uint8 * data,
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157 const Uint8 * mask,
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158 int w, int h, int hot_x,
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159 int hot_y);
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160
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161 /**
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162 * \brief Set the active cursor for the currently selected mouse.
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163 *
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164 * \note The cursor must have been created for the selected mouse.
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165 */
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166 extern DECLSPEC void SDLCALL SDL_SetCursor(SDL_Cursor * cursor);
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167
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168 /**
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169 * \brief Return the active cursor for the currently selected mouse.
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170 */
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171 extern DECLSPEC SDL_Cursor *SDLCALL SDL_GetCursor(void);
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172
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173 /**
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174 * \brief Frees a cursor created with SDL_CreateCursor().
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175 *
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176 * \sa SDL_CreateCursor()
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177 */
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178 extern DECLSPEC void SDLCALL SDL_FreeCursor(SDL_Cursor * cursor);
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179
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180 /**
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181 * \brief Toggle whether or not the cursor is shown for the currently selected
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182 * mouse.
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183 *
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184 * \param toggle 1 to show the cursor, 0 to hide it, -1 to query the current
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185 * state.
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186 *
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187 * \return 1 if the cursor is shown, or 0 if the cursor is hidden.
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188 */
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189 extern DECLSPEC int SDLCALL SDL_ShowCursor(int toggle);
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190
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191 /**
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192 * \brief Gets the number of cursors a pointing device supports.
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193 *
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194 * Useful for tablet users. Useful only under Windows.
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195 *
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196 * \param index is the index of the pointing device, which number of cursors we
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197 * want to receive.
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198 *
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199 * \return the number of cursors supported by the pointing device. On Windows
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200 * if a device is a tablet it returns a number >=1. Normal mice always
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201 * return 1.
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202 *
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203 * On Linux every device reports one cursor.
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204 */
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205 extern DECLSPEC int SDLCALL SDL_GetCursorsNumber(int index);
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206
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207 /**
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208 * \brief Returns the index of the current cursor used by a specific pointing
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209 * device.
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210 *
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211 * Useful only under Windows.
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212 *
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213 * \param index is the index of the pointing device, which cursor index we want
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214 * to receive.
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215 *
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216 * \return the index of the cursor currently used by a specific pointing
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217 * device. Always 0 under Linux. On Windows if the device isn't a
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218 * tablet it returns 0. If the device is the tablet it returns the
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219 * cursor index. 0 - stylus, 1 - eraser, 2 - cursor.
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220 */
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221 extern DECLSPEC int SDLCALL SDL_GetCurrentCursor(int index);
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222
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223 /**
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224 * Used as a mask when testing buttons in buttonstate.
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225 * - Button 1: Left mouse button
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226 * - Button 2: Middle mouse button
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227 * - Button 3: Right mouse button
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228 */
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229 #define SDL_BUTTON(X) (1 << ((X)-1))
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230 #define SDL_BUTTON_LEFT 1
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231 #define SDL_BUTTON_MIDDLE 2
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232 #define SDL_BUTTON_RIGHT 3
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233 #define SDL_BUTTON_X1 4
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234 #define SDL_BUTTON_X2 5
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235 #define SDL_BUTTON_LMASK SDL_BUTTON(SDL_BUTTON_LEFT)
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236 #define SDL_BUTTON_MMASK SDL_BUTTON(SDL_BUTTON_MIDDLE)
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237 #define SDL_BUTTON_RMASK SDL_BUTTON(SDL_BUTTON_RIGHT)
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238 #define SDL_BUTTON_X1MASK SDL_BUTTON(SDL_BUTTON_X1)
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239 #define SDL_BUTTON_X2MASK SDL_BUTTON(SDL_BUTTON_X2)
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240
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241
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242 /* Ends C function definitions when using C++ */
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243 #ifdef __cplusplus
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244 /* *INDENT-OFF* */
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245 }
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246 /* *INDENT-ON* */
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247 #endif
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248 #include "close_code.h"
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249
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250 #endif /* _SDL_mouse_h */
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251
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252 /* vi: set ts=4 sw=4 expandtab: */