annotate include/SDL_syswm.h @ 5230:5d01d426f2ea

It's now possible to disable the fast atomic operations, at a huge performance penalty.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 07 Feb 2011 22:57:33 -0800
parents 164f20ba08eb
children b530ef003506
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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 /**
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46 * \file SDL_syswm.h
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47 *
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48 * Your application has access to a special type of event ::SDL_SYSWMEVENT,
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49 * which contains window-manager specific information and arrives whenever
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50 * an unhandled window event occurs. This event is ignored by default, but
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51 * you can enable it with SDL_EventState().
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52 */
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53 #ifdef SDL_PROTOTYPES_ONLY
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54 struct SDL_SysWMinfo;
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55 #else
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56
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57 #if defined(SDL_VIDEO_DRIVER_WINDOWS)
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58 #define WIN32_LEAN_AND_MEAN
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59 #include <windows.h>
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60 #endif
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61
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62 /* This is the structure for custom window manager events */
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63 #if defined(SDL_VIDEO_DRIVER_X11)
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64 #if defined(__APPLE__) && defined(__MACH__)
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65 /* conflicts with Quickdraw.h */
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66 #define Cursor X11Cursor
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67 #endif
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68
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69 #include <X11/Xlib.h>
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70 #include <X11/Xatom.h>
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71
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72 #if defined(__APPLE__) && defined(__MACH__)
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73 /* matches the re-define above */
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74 #undef Cursor
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75 #endif
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76
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77 #endif /* defined(SDL_VIDEO_DRIVER_X11) */
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78
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79 #if defined(SDL_VIDEO_DRIVER_DIRECTFB)
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80 #include <directfb.h>
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81 #endif
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82
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83 #if defined(SDL_VIDEO_DRIVER_COCOA)
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84 #ifdef __OBJC__
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85 #include <Cocoa/Cocoa.h>
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86 #else
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87 typedef struct _NSWindow NSWindow;
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88 #endif
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89 #endif
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90
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91 #if defined(SDL_VIDEO_DRIVER_UIKIT)
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92 #ifdef __OBJC__
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93 #include <UIKit/UIKit.h>
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94 #else
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95 typedef struct _UIWindow UIWindow;
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96 #endif
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97 #endif
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98
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99 /**
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100 * These are the various supported windowing subsystems
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101 */
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102 typedef enum
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103 {
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104 SDL_SYSWM_UNKNOWN,
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105 SDL_SYSWM_WINDOWS,
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106 SDL_SYSWM_X11,
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107 SDL_SYSWM_DIRECTFB,
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108 SDL_SYSWM_COCOA,
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109 SDL_SYSWM_UIKIT,
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110 } SDL_SYSWM_TYPE;
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111
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112 /**
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113 * The custom event structure.
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114 */
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115 struct SDL_SysWMmsg
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116 {
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117 SDL_version version;
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118 SDL_SYSWM_TYPE subsystem;
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119 union
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120 {
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121 #if defined(SDL_VIDEO_DRIVER_WINDOWS)
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122 struct {
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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 } win;
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128 #endif
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129 #if defined(SDL_VIDEO_DRIVER_X11)
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130 struct {
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131 XEvent event;
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132 } x11;
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133 #endif
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134 #if defined(SDL_VIDEO_DRIVER_DIRECTFB)
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135 struct {
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136 DFBEvent event;
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137 } dfb;
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138 #endif
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139 #if defined(SDL_VIDEO_DRIVER_COCOA)
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140 struct
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141 {
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142 /* No Cocoa window events yet */
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143 } cocoa;
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144 #endif
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145 #if defined(SDL_VIDEO_DRIVER_UIKIT)
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146 struct
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147 {
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148 /* No UIKit window events yet */
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149 } uikit;
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150 #endif
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151 /* Can't have an empty union */
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152 int dummy;
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153 } msg;
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154 };
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155
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156 /**
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157 * The custom window manager information structure.
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158 *
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159 * When this structure is returned, it holds information about which
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160 * low level system it is using, and will be one of SDL_SYSWM_TYPE.
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161 */
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162 struct SDL_SysWMinfo
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163 {
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164 SDL_version version;
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165 SDL_SYSWM_TYPE subsystem;
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166 union
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167 {
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168 #if defined(SDL_VIDEO_DRIVER_WINDOWS)
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169 struct
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170 {
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171 HWND window; /**< The window handle */
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172 } win;
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173 #endif
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174 #if defined(SDL_VIDEO_DRIVER_X11)
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175 struct
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176 {
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177 Display *display; /**< The X11 display */
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178 Window window; /**< The X11 window */
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179 } x11;
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180 #endif
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181 #if defined(SDL_VIDEO_DRIVER_DIRECTFB)
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182 struct
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183 {
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184 IDirectFB *dfb; /**< The directfb main interface */
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185 IDirectFBWindow *window; /**< The directfb window handle */
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186 IDirectFBSurface *surface; /**< The directfb client surface */
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187 } dfb;
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188 #endif
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189 #if defined(SDL_VIDEO_DRIVER_COCOA)
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190 struct
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191 {
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192 NSWindow *window; /* The Cocoa window */
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193 } cocoa;
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194 #endif
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195 #if defined(SDL_VIDEO_DRIVER_UIKIT)
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196 struct
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197 {
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198 UIWindow *window; /* The UIKit window */
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199 } uikit;
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200 #endif
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201 /* Can't have an empty union */
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202 int dummy;
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203 } info;
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204 };
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205
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206 #endif /* SDL_PROTOTYPES_ONLY */
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207
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208 typedef struct SDL_SysWMinfo SDL_SysWMinfo;
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209
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210 /* Function prototypes */
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211 /**
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212 * \brief This function allows access to driver-dependent window information.
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213 *
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214 * \param window The window about which information is being requested
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215 * \param info This structure must be initialized with the SDL version, and is
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216 * then filled in with information about the given window.
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217 *
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218 * \return SDL_TRUE if the function is implemented and the version member of
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219 * the \c info struct is valid, SDL_FALSE otherwise.
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220 *
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221 * You typically use this function like this:
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222 * \code
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223 * SDL_SysWMinfo info;
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224 * SDL_VERSION(&info.version);
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225 * if ( SDL_GetWindowWMInfo(&info) ) { ... }
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226 * \endcode
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227 */
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228 extern DECLSPEC SDL_bool SDLCALL SDL_GetWindowWMInfo(SDL_Window * window,
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229 SDL_SysWMinfo * info);
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230
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231
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232 /* Ends C function definitions when using C++ */
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233 #ifdef __cplusplus
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234 /* *INDENT-OFF* */
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235 }
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236 /* *INDENT-ON* */
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237 #endif
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238 #include "close_code.h"
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239
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240 #endif /* _SDL_syswm_h */
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241
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242 /* vi: set ts=4 sw=4 expandtab: */