?? validatergn.htm
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<td width="100%" colspan="2">VB聲明</td>
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<td width="100%" colspan="2">Declare Function ValidateRgn Lib "user32" Alias
"ValidateRgn" (ByVal hwnd 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">激活窗口中指定區域，把它從刷新區移走</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%">hwnd</td>
<td width="75%">Long，窗口句柄</td>
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<td width="25%">hRgn</td>
<td width="75%">Long，定義要激活區的區域句柄，該區域以窗口客戶坐標表示</td>
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