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1 <HTML
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2 ><HEAD
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3 ><TITLE
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4 >SDL_LockYUVOverlay</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_CreateYUVOverlay"
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17 HREF="sdlcreateyuvoverlay.html"><LINK
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18 REL="NEXT"
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19 TITLE="SDL_UnlockYUVOverlay"
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20 HREF="sdlunlockyuvoverlay.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="sdlcreateyuvoverlay.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="sdlunlockyuvoverlay.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="SDLLOCKYUVOVERLAY"
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71 >SDL_LockYUVOverlay</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="AEN2346"
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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_LockYUVOverlay -- Lock an overlay</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="AEN2349"
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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="AEN2350"
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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_LockYUVOverlay</B
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105 ></CODE
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106 >(SDL_Overlay *overlay);</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="AEN2356"
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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 >Much the same as <A
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121 HREF="sdllocksurface.html"
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122 ><TT
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123 CLASS="FUNCTION"
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124 >SDL_LockSurface</TT
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125 ></A
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126 >, <TT
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127 CLASS="FUNCTION"
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128 >SDL_LockYUVOverlay</TT
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129 > locks the <A
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130 HREF="sdloverlay.html"
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131 ><TT
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132 CLASS="PARAMETER"
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133 ><I
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134 >overlay</I
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135 ></TT
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136 ></A
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137 > for direct access to pixel data.</P
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138 ></DIV
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139 ><DIV
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140 CLASS="REFSECT1"
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141 ><A
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142 NAME="AEN2364"
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143 ></A
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144 ><H2
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145 >Return Value</H2
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146 ><P
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147 >Returns <SPAN
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148 CLASS="RETURNVALUE"
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149 >0</SPAN
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150 > on success, or <SPAN
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151 CLASS="RETURNVALUE"
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152 >-1</SPAN
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153 > on an error.</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="AEN2369"
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159 ></A
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160 ><H2
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161 >See Also</H2
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162 ><P
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163 ><A
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164 HREF="sdlunlockyuvoverlay.html"
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165 ><TT
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166 CLASS="FUNCTION"
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167 >SDL_UnlockYUVOverlay</TT
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168 ></A
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169 >,
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170 <A
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171 HREF="sdlcreateyuvoverlay.html"
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172 ><TT
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173 CLASS="FUNCTION"
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174 >SDL_CreateYUVOverlay</TT
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175 ></A
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176 >,
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177 <A
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178 HREF="sdloverlay.html"
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179 ><SPAN
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180 CLASS="STRUCTNAME"
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181 >SDL_Overlay</SPAN
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182 ></A
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183 ></P
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184 ></DIV
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185 ><DIV
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186 CLASS="NAVFOOTER"
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187 ><HR
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188 ALIGN="LEFT"
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189 WIDTH="100%"><TABLE
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190 WIDTH="100%"
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191 BORDER="0"
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192 CELLPADDING="0"
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193 CELLSPACING="0"
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194 ><TR
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195 ><TD
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196 WIDTH="33%"
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197 ALIGN="left"
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198 VALIGN="top"
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199 ><A
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200 HREF="sdlcreateyuvoverlay.html"
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201 >Prev</A
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202 ></TD
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203 ><TD
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204 WIDTH="34%"
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205 ALIGN="center"
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206 VALIGN="top"
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207 ><A
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208 HREF="index.html"
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209 >Home</A
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210 ></TD
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211 ><TD
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212 WIDTH="33%"
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213 ALIGN="right"
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214 VALIGN="top"
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215 ><A
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216 HREF="sdlunlockyuvoverlay.html"
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217 >Next</A
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218 ></TD
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219 ></TR
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220 ><TR
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221 ><TD
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222 WIDTH="33%"
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223 ALIGN="left"
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224 VALIGN="top"
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225 >SDL_CreateYUVOverlay</TD
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226 ><TD
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227 WIDTH="34%"
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228 ALIGN="center"
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229 VALIGN="top"
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230 ><A
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231 HREF="video.html"
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232 >Up</A
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233 ></TD
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234 ><TD
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235 WIDTH="33%"
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236 ALIGN="right"
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237 VALIGN="top"
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238 >SDL_UnlockYUVOverlay</TD
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239 ></TR
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240 ></TABLE
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241 ></DIV
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242 ></BODY
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243 ></HTML
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244 > |
