?? combinergn.htm
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<td width="100%" height="16"><a name="CombineRgn">CombineRgn</a></td>
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<td width="100%" colspan="3">VB聲明</td>
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<td width="100%" colspan="3">Declare Function CombineRgn Lib "gdi32" Alias
"CombineRgn" (ByVal hDestRgn As Long, ByVal hSrcRgn1 As Long, ByVal hSrcRgn2 As
Long, ByVal nCombineMode As Long) As Long</td>
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<td width="100%" colspan="3">說明</td>
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<td width="100%" colspan="3">將兩個區(qū)域組合為一個新區(qū)域</td>
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<td width="100%" colspan="3">返回值</td>
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<td width="100%" colspan="3">Long，下列常數(shù)之一：<br>
COMPLEXREGION：區(qū)域有互相交疊的邊界<br>
SIMPLEREGION：區(qū)域邊界沒有互相交疊<br>
NULLREGION：區(qū)域為空<br>
ERRORAPI：不能創(chuàng)建組合區(qū)域</td>
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<td width="100%" colspan="3">參數(shù)表</td>
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<td width="25%">參數(shù)</td>
<td width="75%" colspan="2">類型及說明</td>
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<td width="25%">hDestRgn</td>
<td width="75%" colspan="2">Long，包含組合結(jié)果的區(qū)域句柄</td>
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<td width="25%">hSrcRgn1</td>
<td width="75%" colspan="2">Long，源區(qū)域1</td>
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<td width="25%">hSrcRgn2</td>
<td width="75%" colspan="2">Long，源區(qū)域2</td>
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<td width="25%" rowspan="6">nCombineMode</td>
<td width="75%" colspan="2">Long，組合兩區(qū)域的方法?？稍O(shè)為下述常數(shù)</td>
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<td width="38%">RGN_AND</td>
<td width="37%">hDestRgn被設(shè)置為兩個源區(qū)域的交集</td>
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<td width="38%">RGN_COPY</td>
<td width="37%">hDestRgn被設(shè)置為hSrcRgn1的拷貝</td>
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<td width="38%">RGN_DIFF</td>
<td width="37%">hDestRgn被設(shè)置為hSrcRgn1中與hSrcRgn2不相交的部分</td>
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<td width="38%">RGN_OR</td>
<td width="37%">hDestRgn被設(shè)置為兩個區(qū)域的并集</td>
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<td width="38%">RGN_XOR</td>
<td width="37%">hDestRgn被設(shè)置為除兩個源區(qū)域OR之外的部分</td>
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