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annotate include/SDL_syswm.h @ 3335:b8d313de8a65

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Adam Strzelecki to SDL Since current DirectFB implementation is incomplete for YUV surfaces (actually causes segmentation faults when trying Lock and use YUV planar textures) I decided to fix it a bit. Here's a patch that should make DirectFB properly support YUV both packed and planar (3 planes). (1) Removed SDL_BYTESPERPIXEL at all in favor of DFB_BYTES_PER_PIXEL(SDLToDFBPixelFormat(fmt)) which does return always proper BPP for YUVs too, coz SDL_BYTESPERPIXEL returns incorrect values for FOURCCs (2) Fixed data->pixels allocation for planar YUVs in CreateTexture, it should allocate 150% more space (3) Copy other planes for planar YUVs in UpdateTexture (4) Moved checking if format is supported at all with DirectFB on CreateTexture at the beginning of the code Waiting for comments, -- Adam Strzelecki | nanoant.com
author Sam Lantinga <slouken@libsdl.org>
date Sun, 04 Oct 2009 04:03:37 +0000
parents 08574b033f37
children d3baf5ac4e37
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_syswm.h
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25 *
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26 * Include file for SDL custom system window manager hooks
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27 */
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28
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29 #ifndef _SDL_syswm_h
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30 #define _SDL_syswm_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 #include "SDL_version.h"
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36
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37 #include "begin_code.h"
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38 /* Set up for C function definitions, even when using C++ */
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39 #ifdef __cplusplus
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40 /* *INDENT-OFF* */
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41 extern "C" {
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42 /* *INDENT-ON* */
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43 #endif
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44
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45 /* Your application has access to a special type of event 'SDL_SYSWMEVENT',
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46 which contains window-manager specific information and arrives whenever
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47 an unhandled window event occurs. This event is ignored by default, but
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48 you can enable it with SDL_EventState()
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49 */
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50 #ifdef SDL_PROTOTYPES_ONLY
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51 struct SDL_SysWMinfo;
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52 #else
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53
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54 /* This is the structure for custom window manager events */
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55 #if defined(SDL_VIDEO_DRIVER_X11)
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56 #if defined(__APPLE__) && defined(__MACH__)
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57 /* conflicts with Quickdraw.h */
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58 #define Cursor X11Cursor
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59 #endif
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60
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61 #include <X11/Xlib.h>
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62 #include <X11/Xatom.h>
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63
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64 #if defined(__APPLE__) && defined(__MACH__)
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65 /* matches the re-define above */
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66 #undef Cursor
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67 #endif
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68
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69 /* These are the various supported subsystems under UNIX */
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70 typedef enum
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71 {
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72 SDL_SYSWM_X11
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73 } SDL_SYSWM_TYPE;
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74
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75 /* The UNIX custom event structure */
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76 struct SDL_SysWMmsg
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77 {
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78 SDL_version version;
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79 SDL_SYSWM_TYPE subsystem;
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80 union
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81 {
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82 XEvent xevent;
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83 } event;
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84 };
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85
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86 /* The UNIX custom window manager information structure.
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87 When this structure is returned, it holds information about which
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88 low level system it is using, and will be one of SDL_SYSWM_TYPE.
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89 */
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90 struct SDL_SysWMinfo
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91 {
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92 SDL_version version;
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93 SDL_SYSWM_TYPE subsystem;
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94 union
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95 {
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96 struct
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97 {
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98 Display *display; /* The X11 display */
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99 Window window; /* The X11 display window */
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100 /* These locking functions should be called around
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101 any X11 functions using the display variable.
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102 They lock the event thread, so should not be
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103 called around event functions or from event filters.
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104 */
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105 void (*lock_func) (void);
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106 void (*unlock_func) (void);
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107
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108 /* Introduced in SDL 1.0.2 */
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109 Window fswindow; /* The X11 fullscreen window */
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110 Window wmwindow; /* The X11 managed input window */
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111 } x11;
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112 } info;
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113 };
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114
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115 #elif defined(SDL_VIDEO_DRIVER_WIN32)
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116 #define WIN32_LEAN_AND_MEAN
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117 #include <windows.h>
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118
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119 /* The windows custom event structure */
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120 struct SDL_SysWMmsg
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121 {
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122 SDL_version version;
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123 HWND hwnd; /* The window for the message */
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124 UINT msg; /* The type of message */
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125 WPARAM wParam; /* WORD message parameter */
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126 LPARAM lParam; /* LONG message parameter */
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127 };
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128
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129 /* The windows custom window manager information structure */
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130 struct SDL_SysWMinfo
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131 {
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132 SDL_version version;
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133 HWND window; /* The Win32 display window */
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134 };
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135
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136 #elif defined(SDL_VIDEO_DRIVER_RISCOS)
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137
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138 /* RISC OS custom event structure */
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139 struct SDL_SysWMmsg
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140 {
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141 SDL_version version;
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142 int eventCode; /* The window for the message */
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143 int pollBlock[64];
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144 };
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145
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146 /* The RISC OS custom window manager information structure */
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147 struct SDL_SysWMinfo
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148 {
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149 SDL_version version;
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150 int wimpVersion; /* Wimp version running under */
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151 int taskHandle; /* The RISC OS task handle */
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152 int window; /* The RISC OS display window */
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153 };
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154
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155 #elif defined(SDL_VIDEO_DRIVER_PHOTON) || defined(SDL_VIDEO_DRIVER_QNXGF)
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156 #include <sys/neutrino.h>
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157 #if defined(SDL_VIDEO_OPENGL_ES)
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158 #include <gf/gf.h>
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159 #endif /* SDL_VIDEO_OPENGL_ES */
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160 #include <Ph.h>
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161
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162 /* The QNX custom event structure */
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163 struct SDL_SysWMmsg
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164 {
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165 SDL_version version;
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166 int data;
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167 };
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168
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169 /* The QNX Photon custom window manager information structure */
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170 struct SDL_SysWMinfo
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171 {
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172 SDL_version version;
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173 int data;
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174 };
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175
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176 #else
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177
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178 /* The generic custom event structure */
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179 struct SDL_SysWMmsg
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180 {
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181 SDL_version version;
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182 int data;
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183 };
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184
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185 /* The generic custom window manager information structure */
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186 struct SDL_SysWMinfo
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187 {
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188 SDL_version version;
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189 int data;
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190 };
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191
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192 #endif /* video driver type */
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193
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194 #endif /* SDL_PROTOTYPES_ONLY */
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195
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196 typedef struct SDL_SysWMinfo SDL_SysWMinfo;
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197
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198 /* Function prototypes */
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199 /**
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200 * \fn SDL_bool SDL_GetWindowWMInfo (SDL_WindowID windowID, SDL_SysWMinfo * info)
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201 *
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202 * \brief This function allows access to driver-dependent window information.
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203 *
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204 * \param windowID The window about which information is being requested
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205 * \param info This structure must be initialized with the SDL version, and is then filled in with information about the given window.
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206 *
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207 * \return SDL_TRUE if the function is implemented and the version member of the 'info' struct is valid, SDL_FALSE otherwise.
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208 *
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209 * You typically use this function like this:
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210 * \code
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211 * SDL_SysWMInfo info;
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212 * SDL_VERSION(&info.version);
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213 * if ( SDL_GetWindowWMInfo(&info) ) { ... }
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214 * \endcode
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215 */
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216 extern DECLSPEC SDL_bool SDLCALL SDL_GetWindowWMInfo(SDL_WindowID windowID,
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217 SDL_SysWMinfo * info);
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218
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219
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220 /* Ends C function definitions when using C++ */
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221 #ifdef __cplusplus
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222 /* *INDENT-OFF* */
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223 }
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224 /* *INDENT-ON* */
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225 #endif
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226 #include "close_code.h"
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227
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228 #endif /* _SDL_syswm_h */
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229
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230 /* vi: set ts=4 sw=4 expandtab: */