PtVisible |
VB声明 |
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Declare Function PtVisible Lib "gdi32" Alias "PtVisible" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long) As Long |
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说明 |
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确定指定点是否可见(即,点是否在设备场景剪裁区内) |
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返回值 |
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Long,若点在指定设备场景剪裁区内为非零值,否则为0 |
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参数表 |
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参数 |
类型及说明 |
hdc |
Long,设备场景句柄 |
x |
Long,要检查的点的x,y坐标 |
y |
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