?? setrectrgn.htm
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<td width="100%" height="16">SetRectRgn</td>
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<td width="100%" colspan="2">VB聲明</td>
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<td width="100%" colspan="2">Declare Function SetRectRgn Lib "gdi32" Alias
"SetRectRgn" (ByVal hRgn As Long, ByVal X1 As Long, ByVal Y1 As Long, ByVal X2
As Long, ByVal Y2 As Long) As Long</td>
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<td width="100%" colspan="2">說明</td>
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<td width="100%" colspan="2">設置區域為X1，Y1和X2，Y2描述的矩形</td>
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<td width="100%" colspan="2">返回值</td>
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<td width="100%" colspan="2">Long，執行成功為非零值，失敗為0</td>
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<td width="100%" colspan="2">參數表</td>
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<td width="25%">參數</td>
<td width="75%">類型及說明</td>
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<td width="25%">hRgn</td>
<td width="75%">Long，該區域將被設置為指定矩形</td>
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<td width="25%">X1,Y1</td>
<td width="75%">Long，矩形左上角X，Y坐標</td>
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<td width="25%">X2,Y2</td>
<td width="75%">Long，矩形右下角X，Y坐標</td>
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<td width="100%" colspan="2">注解</td>
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<td width="100%" colspan="2"><p align="left">本函數與<a href="CreateRectRgn.htm">CreateRectRgn</a>相同，只是它是設置一個已存在區域而不是創建一個新區域<br>
矩形的底和右邊不包括在區域內</td>
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<td width="100%"><p align="right">Top</td>
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