?? 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(shuō)明</td>
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<td width="100%" colspan="2">設(shè)置設(shè)備場(chǎng)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(zhí)行成功為非零值，失敗為0</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(shuō)明</td>
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<td width="25%">hdc</td>
<td width="75%">Long，設(shè)備場(chǎng)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(lái)的水平和垂直范圍（以設(shè)備單元表示）的結(jié)構(gòu)</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(shù)只在MM_ISOTROPIC和MM_ANISOTROPIC映射模式下有效。在MM_ISOTROPIC模式下，設(shè)置視口范圍必須在窗口范圍之前</td>
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