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CreateRectRgn The CreateRectRgn function creates a rectangular region.
VB4-32,5,6
Declare Function CreateRectRgn Lib "gdi32" Alias "CreateRectRgn" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long |
VB.NET
System.Drawing.Region |
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Operating Systems Supported |
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Requires Windows NT 3.1 or later; Requires Windows 95 or later |
- nLeftRect
Specifies the x-coordinate of the upper-left corner of the region.
- nTopRect
Specifies the y-coordinate of the upper-left corner of the region.
- nRightRect
Specifies the x-coordinate of the lower-right corner of the region.
- nBottomRect
Specifies the y-coordinate of the lower-right corner of the region. |
If the function succeeds, the return value is the handle to the region.
If the function fails, the return value is NULL. |
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