?? getpixel.htm
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<td width="100%" height="16">GetPixel</td>
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<td width="102%" colspan="2">VB聲明</td>
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<td width="102%" colspan="2">Declare Function GetPixel Lib "gdi32" Alias
"GetPixel" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long) As Long</td>
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<td width="102%" colspan="2">說明</td>
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<td width="102%" colspan="2">在指定的設備場景中取得一個像素的RGB值</td>
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<td width="102%" colspan="2">返回值</td>
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<td width="102%" colspan="2">Long，指定點的RGB顏色。如指定的點位于設備場景的剪切區之外，則返回CLR_INVALID</td>
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<td width="102%" colspan="2">參數表</td>
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<td width="25%">參數</td>
<td width="77%">類型及說明</td>
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<td width="25%">hdc</td>
<td width="77%">Long，一個設備場景的句柄</td>
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<td width="25%">x,y</td>
<td width="77%">Long，邏輯坐標中要檢查的點</td>
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<td width="102%" colspan="2">注解</td>
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<td width="102%" colspan="2"><p align="left">用<a href="GetDeviceCaps.htm" tppabs="http://www.gxbcts.com/airfly/api/papi/GetDeviceCaps.htm">GetDeviceCaps</a>判斷設備是否支持本函數</td>
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<td width="100%"><p align="right">Top</td>
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