?? setpixel.htm
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<td width="100%" height="16">SetPixel</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 SetPixel Lib "gdi32" Alias
"SetPixel" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, ByVal crColor
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設置一個像素的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，指定點的實際RGB顏色。如設備不支持指定的準確顏色，則返回的值會與crColor有所不同。如指定的點不能設置，則會返回-1（例如，指定的點可能位于設備場景剪切區外面）。會設置<a
href="GetLastError.htm">GetLastError</a></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，設備場景的句柄</td>
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<td width="25%">x,y</td>
<td width="77%">Long，要設置的點，用邏輯坐標表示</td>
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<td width="25%">crColor</td>
<td width="77%">Long，指定像素的新RGB顏色</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">可用<a href="GetDeviceCaps.htm">GetDeviceCaps</a>判斷一個設備是否支持這個函數</td>
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<td width="100%"><p align="right">Top</td>
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