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