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1 <HTML |
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2 ><HEAD |
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3 ><TITLE |
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4 >SDL_WasInit</TITLE |
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40 >SDL Library Documentation</TH |
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42 ><TR |
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67 ></TABLE |
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68 ><HR |
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69 ALIGN="LEFT" |
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70 WIDTH="100%"></DIV |
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71 ><H1 |
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72 ><A |
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73 NAME="SDLWASINIT" |
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74 ></A |
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75 >SDL_WasInit</H1 |
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76 ><DIV |
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77 CLASS="REFNAMEDIV" |
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78 ><A |
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79 NAME="AEN617" |
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80 ></A |
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81 ><H2 |
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82 >Name</H2 |
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83 >SDL_WasInit -- Check which subsystems are initialized</DIV |
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84 ><DIV |
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85 CLASS="REFSYNOPSISDIV" |
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86 ><A |
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87 NAME="AEN620" |
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88 ></A |
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89 ><H2 |
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90 >Synopsis</H2 |
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91 ><DIV |
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92 CLASS="FUNCSYNOPSIS" |
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93 ><A |
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94 NAME="AEN621" |
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95 ></A |
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96 ><P |
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97 ></P |
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98 ><PRE |
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99 CLASS="FUNCSYNOPSISINFO" |
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100 >#include "SDL.h"</PRE |
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101 ><P |
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102 ><CODE |
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103 ><CODE |
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104 CLASS="FUNCDEF" |
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105 >Uint32 <B |
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106 CLASS="FSFUNC" |
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107 >SDL_WasInit</B |
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108 ></CODE |
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109 >(Uint32 flags);</CODE |
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110 ></P |
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111 ><P |
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112 ></P |
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113 ></DIV |
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114 ></DIV |
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115 ><DIV |
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116 CLASS="REFSECT1" |
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117 ><A |
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118 NAME="AEN627" |
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119 ></A |
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120 ><H2 |
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121 >Description</H2 |
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122 ><P |
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123 ><TT |
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124 CLASS="FUNCTION" |
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125 >SDL_WasInit</TT |
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126 > allows you to see which SDL subsytems have been <A |
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127 HREF="sdlinit.html" |
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128 >initialized</A |
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129 >. <TT |
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130 CLASS="PARAMETER" |
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131 ><I |
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132 >flags</I |
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133 ></TT |
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134 > is a bitwise OR'd combination of the subsystems you wish to check (see <A |
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135 HREF="sdlinit.html" |
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136 ><TT |
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137 CLASS="FUNCTION" |
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138 >SDL_Init</TT |
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139 ></A |
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140 > for a list of subsystem flags).</P |
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141 ></DIV |
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142 ><DIV |
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143 CLASS="REFSECT1" |
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144 ><A |
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145 NAME="AEN635" |
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146 ></A |
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147 ><H2 |
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148 >Return Value</H2 |
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149 ><P |
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150 ><TT |
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151 CLASS="FUNCTION" |
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152 >SDL_WasInit</TT |
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153 > returns a bitwised OR'd combination of the initialized subsystems.</P |
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154 ></DIV |
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155 ><DIV |
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156 CLASS="REFSECT1" |
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157 ><A |
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158 NAME="AEN639" |
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159 ></A |
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160 ><H2 |
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161 >Examples</H2 |
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162 ><PRE |
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163 CLASS="PROGRAMLISTING" |
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164 > /* Here are several ways you can use SDL_WasInit() */ |
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165 |
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166 /* Get init data on all the subsystems */ |
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167 Uint32 subsystem_init; |
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168 |
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169 subsystem_init=SDL_WasInit(SDL_INIT_EVERYTHING); |
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170 |
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171 if(subsystem_init&SDL_INIT_VIDEO) |
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172 printf("Video is initialized.\n"); |
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173 else |
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174 printf("Video is not initialized.\n"); |
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175 |
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176 |
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177 |
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178 /* Just check for one specfic subsystem */ |
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179 |
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180 if(SDL_WasInit(SDL_INIT_VIDEO)!=0) |
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181 printf("Video is initialized.\n"); |
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182 else |
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183 printf("Video is not initialized.\n"); |
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184 |
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185 |
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186 |
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187 |
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188 /* Check for two subsystems */ |
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189 |
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190 Uint32 subsystem_mask=SDL_INIT_VIDEO|SDL_INIT_AUDIO; |
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191 |
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192 if(SDL_WasInit(subsystem_mask)==subsystem_mask) |
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193 printf("Video and Audio initialized.\n"); |
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194 else |
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195 printf("Video and Audio not initialized.\n"); </PRE |
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196 ></DIV |
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197 ><DIV |
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198 CLASS="REFSECT1" |
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199 ><A |
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200 NAME="AEN642" |
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201 ></A |
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202 ><H2 |
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203 >See Also</H2 |
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204 ><P |
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205 ><A |
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206 HREF="sdlinit.html" |
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207 ><TT |
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208 CLASS="FUNCTION" |
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209 >SDL_Init</TT |
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210 ></A |
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211 >, |
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212 <A |
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213 HREF="sdlinitsubsystem.html" |
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214 ><TT |
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215 CLASS="FUNCTION" |
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216 >SDL_Subsystem</TT |
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217 ></A |
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218 ></P |
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