?? canceldc.htm
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<title>CancelDC</title>
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<td width="100%" height="16">CancelDC</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 CancelDC Lib "gdi32" Alias
"CancelDC" (ByVal hdc 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">取消另一個(gè)線程里的長時(shí)間繪圖操作</td>
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<td width="100%" colspan="2">返回值</td>
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<td width="100%" colspan="2">Long，非零表示成功，零表示失敗</td>
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<td width="100%" colspan="2">參數(shù)表</td>
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<td width="25%">參數(shù)</td>
<td width="75%">類型及說明</td>
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<td width="25%">hdc</td>
<td width="75%">Long，要在其中取消繪圖操作的設(shè)備場景</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">繪圖操作有時(shí)可能會相當(dāng)花時(shí)間。在多線程應(yīng)用程序中，這個(gè)命令允許一個(gè)線程終止另一個(gè)在線程里的繪圖操作</td>
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<td width="100%"><p align="right">Top</td>
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