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cbwang505 提交于 2020-01-04 20:32 . init
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<div class="title">rect.c</div> </div>
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<div class="contents">
<a href="a00935.html">浏览该文件的文档.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160; </div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160; </div>
<div class="line"><a name="l00021"></a><span class="lineno"><a class="line" href="a00935.html#a479bbe69c871894f6ca23dfa237481ad"> 21</a></span>&#160;BOOL <a class="code" href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a> <a class="code" href="a00935.html#a479bbe69c871894f6ca23dfa237481ad">SetRect</a>(</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; LPRECT prc,</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160; <span class="keywordtype">int</span> left,</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; <span class="keywordtype">int</span> top,</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; <span class="keywordtype">int</span> right,</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; <span class="keywordtype">int</span> bottom)</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;{</div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; <span class="keywordflow">if</span> (prc == NULL) <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160; prc-&gt;left = left;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; prc-&gt;top = top;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; prc-&gt;right = right;</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; prc-&gt;bottom = bottom;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;}</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; </div>
<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="a00935.html#add42cfa617c629deef27087b88368891"> 46</a></span>&#160;BOOL <a class="code" href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a> <a class="code" href="a00935.html#add42cfa617c629deef27087b88368891">CopyInflateRect</a>(</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; LPRECT prcDst,</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; CONST RECT *prcSrc,</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keywordtype">int</span> cx, <span class="keywordtype">int</span> <a class="code" href="a00716.html#ac7b5fb8555805e7e7c11b30491a324f7">cy</a>)</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;{</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; prcDst-&gt;top = prcSrc-&gt;top - <a class="code" href="a00716.html#ac7b5fb8555805e7e7c11b30491a324f7">cy</a>;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; prcDst-&gt;bottom = prcSrc-&gt;bottom + <a class="code" href="a00716.html#ac7b5fb8555805e7e7c11b30491a324f7">cy</a>;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;}</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; </div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; </div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="a00935.html#ac638a1ce39dd10773c0133549503776e"> 67</a></span>&#160;BOOL <a class="code" href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a> <a class="code" href="a00935.html#ac638a1ce39dd10773c0133549503776e">CopyOffsetRect</a>(</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; LPRECT prcDst,</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; CONST RECT *prcSrc,</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keywordtype">int</span> cx, <span class="keywordtype">int</span> <a class="code" href="a00716.html#ac7b5fb8555805e7e7c11b30491a324f7">cy</a>)</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;{</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; prcDst-&gt;left = prcSrc-&gt;left + cx;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; prcDst-&gt;right = prcSrc-&gt;right + cx;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; prcDst-&gt;top = prcSrc-&gt;top + <a class="code" href="a00716.html#ac7b5fb8555805e7e7c11b30491a324f7">cy</a>;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; prcDst-&gt;bottom = prcSrc-&gt;bottom + <a class="code" href="a00716.html#ac7b5fb8555805e7e7c11b30491a324f7">cy</a>;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;}</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; </div>
<div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="a00935.html#aae87a48872786438315bf6793cbce050"> 95</a></span>&#160;BOOL <a class="code" href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a> <a class="code" href="a00935.html#aae87a48872786438315bf6793cbce050">IsRectEmpty</a>(</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; CONST RECT *prc)</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;{</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keywordflow">if</span> (prc == NULL) <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="keywordflow">return</span> ((prc-&gt;left &gt;= prc-&gt;right) || (prc-&gt;top &gt;= prc-&gt;bottom));</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;}</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; </div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; </div>
<div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="a00935.html#a75b3bf802c369845c4381fcee638bc8a"> 111</a></span>&#160;BOOL <a class="code" href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a> <a class="code" href="a00935.html#a75b3bf802c369845c4381fcee638bc8a">PtInRect</a>(</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; CONST RECT *prc,</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; POINT pt)</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;{</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keywordflow">if</span> (prc == NULL) <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="keywordflow">return</span> ((pt.x &gt;= prc-&gt;left) &amp;&amp; (pt.x &lt; prc-&gt;right) &amp;&amp;</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; (pt.y &gt;= prc-&gt;top) &amp;&amp; (pt.y &lt; prc-&gt;bottom));</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;}</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; </div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; </div>
<div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="a00935.html#a59a3cfdacf3d0e5d10c20abee032cfc6"> 132</a></span>&#160;BOOL <a class="code" href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a> <a class="code" href="a00935.html#a59a3cfdacf3d0e5d10c20abee032cfc6">OffsetRect</a>(</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; LPRECT prc,</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <span class="keywordtype">int</span> cx,</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="keywordtype">int</span> <a class="code" href="a00716.html#ac7b5fb8555805e7e7c11b30491a324f7">cy</a>)</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;{</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="keywordflow">if</span> (prc == NULL) <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; </div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; prc-&gt;left += cx;</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; prc-&gt;right += cx;</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; prc-&gt;bottom += <a class="code" href="a00716.html#ac7b5fb8555805e7e7c11b30491a324f7">cy</a>;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; prc-&gt;top += <a class="code" href="a00716.html#ac7b5fb8555805e7e7c11b30491a324f7">cy</a>;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160;}</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; </div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; </div>
<div class="line"><a name="l00158"></a><span class="lineno"><a class="line" href="a00935.html#afa361f1e7cc3d9957b148ff982f8d030"> 158</a></span>&#160;BOOL <a class="code" href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a> <a class="code" href="a00935.html#afa361f1e7cc3d9957b148ff982f8d030">InflateRect</a>(</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; LPRECT prc,</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keywordtype">int</span> cx,</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="keywordtype">int</span> <a class="code" href="a00716.html#ac7b5fb8555805e7e7c11b30491a324f7">cy</a>)</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;{</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; <span class="keywordflow">if</span> (prc == NULL) <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; </div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; prc-&gt;left -= cx;</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; prc-&gt;right += cx;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; prc-&gt;top -= <a class="code" href="a00716.html#ac7b5fb8555805e7e7c11b30491a324f7">cy</a>;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; prc-&gt;bottom += <a class="code" href="a00716.html#ac7b5fb8555805e7e7c11b30491a324f7">cy</a>;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160;}</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; </div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; </div>
<div class="line"><a name="l00184"></a><span class="lineno"><a class="line" href="a00935.html#a1c87c29903dd37145cd93b64140a5d3a"> 184</a></span>&#160;BOOL <a class="code" href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a> <a class="code" href="a00935.html#a1c87c29903dd37145cd93b64140a5d3a">IntersectRect</a>(</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; LPRECT prcDst,</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; CONST RECT *prcSrc1,</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; CONST RECT *prcSrc2)</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; </div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160;{</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; </div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; <span class="keywordflow">if</span> ((prcDst == NULL) || (prcSrc1 == NULL) || (prcSrc2 == NULL)) <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; </div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; prcDst-&gt;left = max(prcSrc1-&gt;left, prcSrc2-&gt;left);</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; prcDst-&gt;right = min(prcSrc1-&gt;right, prcSrc2-&gt;right);</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; </div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <span class="comment">/*</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160;<span class="comment"> * check for empty rect</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; <span class="keywordflow">if</span> (prcDst-&gt;left &lt; prcDst-&gt;right) {</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; </div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; prcDst-&gt;top = max(prcSrc1-&gt;top, prcSrc2-&gt;top);</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; prcDst-&gt;bottom = min(prcSrc1-&gt;bottom, prcSrc2-&gt;bottom);</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; </div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; <span class="comment">/*</span></div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160;<span class="comment"> * check for empty rect</span></div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; <span class="keywordflow">if</span> (prcDst-&gt;top &lt; prcDst-&gt;bottom) {</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; <span class="keywordflow">return</span> TRUE; <span class="comment">// not empty</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; }</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; }</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; </div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="comment">/*</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160;<span class="comment"> * empty rect</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; <a class="code" href="a00935.html#a6f9d1e9b327899127c080496900d48d9">SetRectEmpty</a>(prcDst);</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; </div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160;}</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; </div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; </div>
<div class="line"><a name="l00233"></a><span class="lineno"><a class="line" href="a00935.html#ae447c29296398f6e6ae0f28d192e606d"> 233</a></span>&#160;BOOL <a class="code" href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a> <a class="code" href="a00935.html#ae447c29296398f6e6ae0f28d192e606d">UnionRect</a>(</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; LPRECT prcDst,</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; CONST RECT *prcSrc1,</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; CONST RECT *prcSrc2)</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160;{</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; BOOL frc1Empty, frc2Empty;</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; </div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; <span class="keywordflow">if</span> ((prcDst == NULL) || (prcSrc1 == NULL) || (prcSrc2 == NULL)) <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; </div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; frc1Empty = ((prcSrc1-&gt;left &gt;= prcSrc1-&gt;right) ||</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; (prcSrc1-&gt;top &gt;= prcSrc1-&gt;bottom));</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; </div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; frc2Empty = ((prcSrc2-&gt;left &gt;= prcSrc2-&gt;right) ||</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; (prcSrc2-&gt;top &gt;= prcSrc2-&gt;bottom));</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; </div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; <span class="keywordflow">if</span> (frc1Empty &amp;&amp; frc2Empty) {</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; <a class="code" href="a00935.html#a6f9d1e9b327899127c080496900d48d9">SetRectEmpty</a>(prcDst);</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; }</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; </div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160; <span class="keywordflow">if</span> (frc1Empty) {</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; *prcDst = *prcSrc2;</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; }</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; </div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; <span class="keywordflow">if</span> (frc2Empty) {</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; *prcDst = *prcSrc1;</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; }</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; </div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; <span class="comment">/*</span></div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160;<span class="comment"> * form the union of the two non-empty rects</span></div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; prcDst-&gt;left = min(prcSrc1-&gt;left, prcSrc2-&gt;left);</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160; prcDst-&gt;top = min(prcSrc1-&gt;top, prcSrc2-&gt;top);</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; prcDst-&gt;right = max(prcSrc1-&gt;right, prcSrc2-&gt;right);</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; prcDst-&gt;bottom = max(prcSrc1-&gt;bottom, prcSrc2-&gt;bottom);</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; </div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160;}</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; </div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; </div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160;<span class="preprocessor">#undef EqualRect // don&#39;t let macro interfere with API</span></div>
<div class="line"><a name="l00285"></a><span class="lineno"><a class="line" href="a00935.html#a0cbc8750cb300c339ef3d2c0ca689f1a"> 285</a></span>&#160;BOOL <a class="code" href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a> <a class="code" href="a00935.html#a0cbc8750cb300c339ef3d2c0ca689f1a">EqualRect</a>(</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; CONST RECT *prc1,</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; CONST RECT *prc2)</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160;{</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; <span class="keywordflow">if</span> ((prc1 == NULL) || (prc2 == NULL)) <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; </div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; <span class="comment">/*</span></div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160;<span class="comment"> * Test equality only. This is what win31 does. win31 does not check to</span></div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160;<span class="comment"> * see if the rectangles are &quot;empty&quot; first.</span></div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; <span class="keywordflow">return</span> RtlEqualMemory(prc1, prc2, <span class="keyword">sizeof</span>(RECT));</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160;}</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; </div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; </div>
<div class="line"><a name="l00316"></a><span class="lineno"><a class="line" href="a00935.html#afa9133f9221aadfcbf10c70a168f3a5f"> 316</a></span>&#160;BOOL <a class="code" href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a> <a class="code" href="a00935.html#afa9133f9221aadfcbf10c70a168f3a5f">SubtractRect</a>(</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160; LPRECT prcDst,</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; CONST RECT *prcSrc1,</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; CONST RECT *prcSrc2)</div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160;{</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; <span class="keywordtype">int</span> cSidesOut;</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; BOOL fIntersect;</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160; RECT rcInt;</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160; </div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160; <span class="keywordflow">if</span> ((prcDst == NULL) || (prcSrc1 == NULL) || (prcSrc2 == NULL)) <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160; </div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160; fIntersect = <a class="code" href="a00935.html#a1c87c29903dd37145cd93b64140a5d3a">IntersectRect</a>(&amp;rcInt, prcSrc1, prcSrc2);</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160; </div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; <span class="comment">/*</span></div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160;<span class="comment"> * this is done after the intersection in case prcDst is the same</span></div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160;<span class="comment"> * pointer as prcSrc2</span></div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160; *prcDst = *prcSrc1;</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160; </div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160; <span class="keywordflow">if</span> (fIntersect) {</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160; <span class="comment">/*</span></div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160;<span class="comment"> * exactly any 3 sides of prc2 must be outside prc1 to subtract</span></div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160; cSidesOut = 0;</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160; <span class="keywordflow">if</span> (rcInt.left &lt;= prcSrc1-&gt;left)</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160; cSidesOut++;</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160; <span class="keywordflow">if</span> (rcInt.top &lt;= prcSrc1-&gt;top)</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160; cSidesOut++;</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160; <span class="keywordflow">if</span> (rcInt.right &gt;= prcSrc1-&gt;right)</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160; cSidesOut++;</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>&#160; <span class="keywordflow">if</span> (rcInt.bottom &gt;= prcSrc1-&gt;bottom)</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160; cSidesOut++;</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>&#160; </div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160; <span class="keywordflow">if</span> (cSidesOut == 4) {</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160; <span class="comment">/*</span></div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160;<span class="comment"> * result is the empty rect</span></div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160; <a class="code" href="a00935.html#a6f9d1e9b327899127c080496900d48d9">SetRectEmpty</a>(prcDst);</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160; <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160; }</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160; </div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160; <span class="keywordflow">if</span> (cSidesOut == 3) {</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>&#160; <span class="comment">/*</span></div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>&#160;<span class="comment"> * subtract the intersecting rect</span></div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>&#160; <span class="keywordflow">if</span> (rcInt.left &gt; prcSrc1-&gt;left)</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>&#160; prcDst-&gt;right = rcInt.left;</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>&#160; </div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160; <span class="keywordflow">else</span> <span class="keywordflow">if</span> (rcInt.right &lt; prcSrc1-&gt;right)</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160; prcDst-&gt;left = rcInt.right;</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160; </div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>&#160; <span class="keywordflow">else</span> <span class="keywordflow">if</span> (rcInt.top &gt; prcSrc1-&gt;top)</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>&#160; prcDst-&gt;bottom = rcInt.top;</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160; </div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>&#160; <span class="keywordflow">else</span> <span class="keywordflow">if</span> (rcInt.bottom &lt; prcSrc1-&gt;bottom)</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160; prcDst-&gt;top = rcInt.bottom;</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160; }</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160; }</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160; </div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160; <span class="keywordflow">if</span> ((prcDst-&gt;left &gt;= prcDst-&gt;right) || (prcDst-&gt;top &gt;= prcDst-&gt;bottom))</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160; <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160; </div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>&#160; <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>&#160;}</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>&#160; </div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160; </div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>&#160;<span class="preprocessor">#undef CopyRect // don&#39;t let macro interfere with API</span></div>
<div class="line"><a name="l00391"></a><span class="lineno"><a class="line" href="a00935.html#a31ccccdb469eefbb55d18b71a26af0da"> 391</a></span>&#160;BOOL <a class="code" href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a> <a class="code" href="a00935.html#a31ccccdb469eefbb55d18b71a26af0da">CopyRect</a>(</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>&#160; LPRECT prcDst,</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>&#160; CONST RECT *prcSrc)</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>&#160;{</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>&#160; <span class="keywordflow">if</span> ((prcDst == NULL) || (prcSrc == NULL))</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>&#160; <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>&#160; </div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>&#160; *prcDst = *prcSrc;</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>&#160; <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>&#160;}</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>&#160; </div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>&#160; </div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>&#160; </div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>&#160;<span class="preprocessor">#undef SetRectEmpty // don&#39;t let macro interfere with API</span></div>
<div class="line"><a name="l00414"></a><span class="lineno"><a class="line" href="a00935.html#a6f9d1e9b327899127c080496900d48d9"> 414</a></span>&#160;BOOL <a class="code" href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a> <a class="code" href="a00935.html#a6f9d1e9b327899127c080496900d48d9">SetRectEmpty</a>(</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>&#160; LPRECT prc)</div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>&#160;{</div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>&#160; <span class="keywordflow">if</span> (prc == NULL) <span class="keywordflow">return</span> FALSE;</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>&#160; </div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>&#160; RtlZeroMemory(prc, <span class="keyword">sizeof</span>(RECT));</div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>&#160; <span class="keywordflow">return</span> TRUE;</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>&#160;}</div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="aa00935_html_ae447c29296398f6e6ae0f28d192e606d"><div class="ttname"><a href="a00935.html#ae447c29296398f6e6ae0f28d192e606d">UnionRect</a></div><div class="ttdeci">BOOL APIENTRY UnionRect(LPRECT prcDst, CONST RECT *prcSrc1, CONST RECT *prcSrc2)</div><div class="ttdef"><b>Definition:</b> <a href="a00935_source.html#l00233">rect.c:233</a></div></div>
<div class="ttc" id="aa00935_html_a479bbe69c871894f6ca23dfa237481ad"><div class="ttname"><a href="a00935.html#a479bbe69c871894f6ca23dfa237481ad">SetRect</a></div><div class="ttdeci">BOOL APIENTRY SetRect(LPRECT prc, int left, int top, int right, int bottom)</div><div class="ttdef"><b>Definition:</b> <a href="a00935_source.html#l00021">rect.c:21</a></div></div>
<div class="ttc" id="aa00935_html_aae87a48872786438315bf6793cbce050"><div class="ttname"><a href="a00935.html#aae87a48872786438315bf6793cbce050">IsRectEmpty</a></div><div class="ttdeci">BOOL APIENTRY IsRectEmpty(CONST RECT *prc)</div><div class="ttdef"><b>Definition:</b> <a href="a00935_source.html#l00095">rect.c:95</a></div></div>
<div class="ttc" id="aa00935_html_a59a3cfdacf3d0e5d10c20abee032cfc6"><div class="ttname"><a href="a00935.html#a59a3cfdacf3d0e5d10c20abee032cfc6">OffsetRect</a></div><div class="ttdeci">BOOL APIENTRY OffsetRect(LPRECT prc, int cx, int cy)</div><div class="ttdef"><b>Definition:</b> <a href="a00935_source.html#l00132">rect.c:132</a></div></div>
<div class="ttc" id="aa00935_html_a1c87c29903dd37145cd93b64140a5d3a"><div class="ttname"><a href="a00935.html#a1c87c29903dd37145cd93b64140a5d3a">IntersectRect</a></div><div class="ttdeci">BOOL APIENTRY IntersectRect(LPRECT prcDst, CONST RECT *prcSrc1, CONST RECT *prcSrc2)</div><div class="ttdef"><b>Definition:</b> <a href="a00935_source.html#l00184">rect.c:184</a></div></div>
<div class="ttc" id="aa00935_html_a75b3bf802c369845c4381fcee638bc8a"><div class="ttname"><a href="a00935.html#a75b3bf802c369845c4381fcee638bc8a">PtInRect</a></div><div class="ttdeci">BOOL APIENTRY PtInRect(CONST RECT *prc, POINT pt)</div><div class="ttdef"><b>Definition:</b> <a href="a00935_source.html#l00111">rect.c:111</a></div></div>
<div class="ttc" id="aa00935_html_ac638a1ce39dd10773c0133549503776e"><div class="ttname"><a href="a00935.html#ac638a1ce39dd10773c0133549503776e">CopyOffsetRect</a></div><div class="ttdeci">BOOL APIENTRY CopyOffsetRect(LPRECT prcDst, CONST RECT *prcSrc, int cx, int cy)</div><div class="ttdef"><b>Definition:</b> <a href="a00935_source.html#l00067">rect.c:67</a></div></div>
<div class="ttc" id="aa00935_html_afa361f1e7cc3d9957b148ff982f8d030"><div class="ttname"><a href="a00935.html#afa361f1e7cc3d9957b148ff982f8d030">InflateRect</a></div><div class="ttdeci">BOOL APIENTRY InflateRect(LPRECT prc, int cx, int cy)</div><div class="ttdef"><b>Definition:</b> <a href="a00935_source.html#l00158">rect.c:158</a></div></div>
<div class="ttc" id="aa00716_html_ac7b5fb8555805e7e7c11b30491a324f7"><div class="ttname"><a href="a00716.html#ac7b5fb8555805e7e7c11b30491a324f7">cy</a></div><div class="ttdeci">int cy[5]</div><div class="ttdef"><b>Definition:</b> <a href="a00716_source.html#l00456">inctlpan.c:456</a></div></div>
<div class="ttc" id="aa00935_html_a0cbc8750cb300c339ef3d2c0ca689f1a"><div class="ttname"><a href="a00935.html#a0cbc8750cb300c339ef3d2c0ca689f1a">EqualRect</a></div><div class="ttdeci">BOOL APIENTRY EqualRect(CONST RECT *prc1, CONST RECT *prc2)</div><div class="ttdef"><b>Definition:</b> <a href="a00935_source.html#l00285">rect.c:285</a></div></div>
<div class="ttc" id="aa00935_html_afa9133f9221aadfcbf10c70a168f3a5f"><div class="ttname"><a href="a00935.html#afa9133f9221aadfcbf10c70a168f3a5f">SubtractRect</a></div><div class="ttdeci">BOOL APIENTRY SubtractRect(LPRECT prcDst, CONST RECT *prcSrc1, CONST RECT *prcSrc2)</div><div class="ttdef"><b>Definition:</b> <a href="a00935_source.html#l00316">rect.c:316</a></div></div>
<div class="ttc" id="aa00935_html_a6f9d1e9b327899127c080496900d48d9"><div class="ttname"><a href="a00935.html#a6f9d1e9b327899127c080496900d48d9">SetRectEmpty</a></div><div class="ttdeci">BOOL APIENTRY SetRectEmpty(LPRECT prc)</div><div class="ttdef"><b>Definition:</b> <a href="a00935_source.html#l00414">rect.c:414</a></div></div>
<div class="ttc" id="aa00935_html_a31ccccdb469eefbb55d18b71a26af0da"><div class="ttname"><a href="a00935.html#a31ccccdb469eefbb55d18b71a26af0da">CopyRect</a></div><div class="ttdeci">BOOL APIENTRY CopyRect(LPRECT prcDst, CONST RECT *prcSrc)</div><div class="ttdef"><b>Definition:</b> <a href="a00935_source.html#l00391">rect.c:391</a></div></div>
<div class="ttc" id="aa00935_html_add42cfa617c629deef27087b88368891"><div class="ttname"><a href="a00935.html#add42cfa617c629deef27087b88368891">CopyInflateRect</a></div><div class="ttdeci">BOOL APIENTRY CopyInflateRect(LPRECT prcDst, CONST RECT *prcSrc, int cx, int cy)</div><div class="ttdef"><b>Definition:</b> <a href="a00935_source.html#l00046">rect.c:46</a></div></div>
<div class="ttc" id="aa00953_html_a428a91acf2c2439dc1a257708ee1f805"><div class="ttname"><a href="a00953.html#a428a91acf2c2439dc1a257708ee1f805">APIENTRY</a></div><div class="ttdeci">#define APIENTRY</div><div class="ttdef"><b>Definition:</b> <a href="a00953_source.html#l00005">bench.c:5</a></div></div>
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