?? getcliprgn.htm
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<td width="100%" height="16">GetClipRgn</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 GetClipRgn Lib "gdi32" Alias
"GetClipRgn" (ByVal hdc As Long, ByVal hRgn 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">獲取設備場景當前剪裁區</td>
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<td width="100%" colspan="2">返回值</td>
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<td width="100%" colspan="2">Long，下列常數之一：<br>
1——執行成功，剪裁區存在<br>
0——執行成功，沒有定義剪裁區<br>
-1——出錯</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%">hdc</td>
<td width="75%">Long，想要訪問的設備場景剪裁區</td>
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<td width="25%">hRgn</td>
<td width="75%">Long，已存在的區域句柄。該區域將被設為設備場景當前剪裁區</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">hRgn裝載剪裁區拷貝。它后面的改變不影響剪裁區。該函數只能載入由應用程序設置的剪裁區，那些由BeginPaint一類函數設置的內部剪裁區不能被函數訪問</td>
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