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1 <HTML
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2 ><HEAD
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3 ><TITLE
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4 >SDL_VideoModeOK</TITLE
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5 ><META
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6 NAME="GENERATOR"
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.61
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8 "><LINK
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9 REL="HOME"
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10 TITLE="SDL Library Documentation"
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11 HREF="index.html"><LINK
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12 REL="UP"
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13 TITLE="Video"
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14 HREF="video.html"><LINK
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15 REL="PREVIOUS"
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16 TITLE="SDL_ListModes"
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17 HREF="sdllistmodes.html"><LINK
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18 REL="NEXT"
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19 TITLE="SDL_SetVideoMode"
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20 HREF="sdlsetvideomode.html"></HEAD
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21 ><BODY
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22 CLASS="REFENTRY"
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23 BGCOLOR="#FFF8DC"
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24 TEXT="#000000"
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25 LINK="#0000ee"
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26 VLINK="#551a8b"
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27 ALINK="#ff0000"
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28 ><DIV
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29 CLASS="NAVHEADER"
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30 ><TABLE
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31 WIDTH="100%"
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32 BORDER="0"
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33 CELLPADDING="0"
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34 CELLSPACING="0"
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35 ><TR
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36 ><TH
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37 COLSPAN="3"
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38 ALIGN="center"
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39 >SDL Library Documentation</TH
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40 ></TR
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41 ><TR
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42 ><TD
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43 WIDTH="10%"
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44 ALIGN="left"
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45 VALIGN="bottom"
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46 ><A
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47 HREF="sdllistmodes.html"
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48 >Prev</A
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49 ></TD
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50 ><TD
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51 WIDTH="80%"
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52 ALIGN="center"
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53 VALIGN="bottom"
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54 ></TD
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55 ><TD
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56 WIDTH="10%"
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57 ALIGN="right"
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58 VALIGN="bottom"
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59 ><A
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60 HREF="sdlsetvideomode.html"
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61 >Next</A
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62 ></TD
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63 ></TR
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64 ></TABLE
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65 ><HR
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66 ALIGN="LEFT"
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67 WIDTH="100%"></DIV
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68 ><H1
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69 ><A
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70 NAME="SDLVIDEOMODEOK"
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71 >SDL_VideoModeOK</A
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72 ></H1
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73 ><DIV
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74 CLASS="REFNAMEDIV"
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75 ><A
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76 NAME="AEN758"
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77 ></A
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78 ><H2
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79 >Name</H2
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80 >SDL_VideoModeOK -- Check to see if a particular video mode is supported.</DIV
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81 ><DIV
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82 CLASS="REFSYNOPSISDIV"
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83 ><A
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84 NAME="AEN761"
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85 ></A
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86 ><H2
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87 >Synopsis</H2
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88 ><DIV
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89 CLASS="FUNCSYNOPSIS"
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90 ><A
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91 NAME="AEN762"
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92 ></A
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93 ><P
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94 ></P
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95 ><PRE
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96 CLASS="FUNCSYNOPSISINFO"
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97 >#include "SDL.h"</PRE
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98 ><P
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99 ><CODE
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100 ><CODE
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101 CLASS="FUNCDEF"
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102 >int <B
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103 CLASS="FSFUNC"
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104 >SDL_VideoModeOK</B
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105 ></CODE
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106 >(int width, int height, int bpp, Uint32 flags);</CODE
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107 ></P
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108 ><P
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109 ></P
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110 ></DIV
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111 ></DIV
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112 ><DIV
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113 CLASS="REFSECT1"
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114 ><A
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115 NAME="AEN768"
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116 ></A
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117 ><H2
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118 >Description</H2
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119 ><P
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120 ><TT
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121 CLASS="FUNCTION"
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122 >SDL_VideoModeOK</TT
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123 > returns <SPAN
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124 CLASS="RETURNVALUE"
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125 >0</SPAN
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126 >
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127 if the requested mode is not supported under any bit depth, or returns the
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128 bits-per-pixel of the closest available mode with the given width, height and requested <A
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129 HREF="sdlsurface.html"
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130 >surface</A
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131 > flags (see <A
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132 HREF="sdlsetvideomode.html"
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133 ><TT
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134 CLASS="FUNCTION"
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135 >SDL_SetVideoMode</TT
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136 ></A
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137 >).</P
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138 ><P
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139 >The bits-per-pixel value returned is only a suggested mode. You can usually request and bpp you want when <A
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140 HREF="sdlsetvideomode.html"
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141 >setting</A
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142 > the video mode and SDL will emulate that color depth with a shadow video surface.</P
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143 ><P
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144 >The arguments to <TT
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145 CLASS="FUNCTION"
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146 >SDL_VideoModeOK</TT
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147 > are the same ones you
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148 would pass to <A
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149 HREF="sdlsetvideomode.html"
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150 >SDL_SetVideoMode</A
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151 ></P
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152 ></DIV
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153 ><DIV
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154 CLASS="REFSECT1"
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155 ><A
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156 NAME="AEN781"
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157 ></A
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158 ><H2
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159 >Example</H2
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160 ><PRE
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161 CLASS="PROGRAMLISTING"
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162 >SDL_Surface *screen;
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163 Uint32 bpp;
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164 .
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165 .
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166 .
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167 printf("Checking mode 640x480@16bpp.\n");
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168 bpp=SDL_VideoModeOK(640, 480, 16, SDL_HWSURFACE);
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169
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170 if(!bpp){
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171 printf("Mode not available.\n");
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172 exit(-1);
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173 }
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174
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175 printf("SDL Recommends 640x480@%dbpp.\n", bpp);
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176 screen=SDL_SetVideoMode(640, 480, bpp, SDL_HWSURFACE);
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177 .
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178 .</PRE
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179 ></DIV
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180 ><DIV
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181 CLASS="REFSECT1"
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182 ><A
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183 NAME="AEN784"
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184 ></A
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185 ><H2
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186 >See Also</H2
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187 ><P
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188 ><A
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189 HREF="sdlsetvideomode.html"
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190 ><TT
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191 CLASS="FUNCTION"
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192 >SDL_SetVideoMode</TT
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193 ></A
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194 >,
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195 <A
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196 HREF="sdlgetvideoinfo.html"
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197 ><TT
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198 CLASS="FUNCTION"
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199 >SDL_GetVideoInfo</TT
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200 ></A
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201 ></P
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202 ></DIV
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203 ><DIV
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204 CLASS="NAVFOOTER"
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205 ><HR
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206 ALIGN="LEFT"
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207 WIDTH="100%"><TABLE
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208 WIDTH="100%"
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209 BORDER="0"
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210 CELLPADDING="0"
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211 CELLSPACING="0"
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212 ><TR
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213 ><TD
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214 WIDTH="33%"
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215 ALIGN="left"
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216 VALIGN="top"
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217 ><A
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218 HREF="sdllistmodes.html"
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219 >Prev</A
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220 ></TD
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221 ><TD
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222 WIDTH="34%"
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223 ALIGN="center"
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224 VALIGN="top"
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225 ><A
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226 HREF="index.html"
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227 >Home</A
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228 ></TD
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229 ><TD
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230 WIDTH="33%"
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231 ALIGN="right"
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232 VALIGN="top"
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233 ><A
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234 HREF="sdlsetvideomode.html"
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235 >Next</A
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236 ></TD
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237 ></TR
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238 ><TR
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239 ><TD
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240 WIDTH="33%"
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241 ALIGN="left"
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242 VALIGN="top"
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243 >SDL_ListModes</TD
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244 ><TD
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245 WIDTH="34%"
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246 ALIGN="center"
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247 VALIGN="top"
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248 ><A
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249 HREF="video.html"
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250 >Up</A
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251 ></TD
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252 ><TD
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253 WIDTH="33%"
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254 ALIGN="right"
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255 VALIGN="top"
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256 >SDL_SetVideoMode</TD
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257 ></TR
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258 ></TABLE
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259 ></DIV
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260 ></BODY
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261 ></HTML
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262 > |
