?? setviewportextex.htm
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<td width="100%" height="16">SetViewportExtEx</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 SetViewportExtEx Lib "gdi32" Alias
"SetViewportExtEx" (ByVal hdc As Long, ByVal nX As Long, ByVal nY As Long,
lpSize As SIZE) As Long</td>
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<td width="100%" colspan="2">說明</td>
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<td width="100%" colspan="2">設置設備場景視口范圍</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%">hdc</td>
<td width="75%">Long，設備場景句柄</td>
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<td width="25%">nX,nY</td>
<td width="75%">Long，視口水平和垂直范圍</td>
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<td width="25%">lpSize</td>
<td width="75%">SIZE，裝載DC視口原來的水平和垂直范圍（以設備單元表示）的結構</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">本函數只在MM_ISOTROPIC和MM_ANISOTROPIC映射模式下有效。在MM_ISOTROPIC模式下，設置視口范圍必須在窗口范圍之前</td>
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