The CreateRoundRectRgn function creates a rectangular region with rounded corners.
HRGN CreateRoundRectRgn(
| int nLeftRect, | // x-coordinate of the region's upper-left corner |
| int nTopRect, | // y-coordinate of the region's upper-left corner |
| int nRightRect, | // x-coordinate of the region's lower-right corner |
| int nBottomRect, | // y-coordinate of the region's lower-right corner |
| int nWidthEllipse, | // height of ellipse for rounded corners |
| int nHeightEllipse | // width of ellipse for rounded corners |
| ); |
Parameters
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.
nWidthEllipse
Specifies the width of the ellipse used to create the rounded corners.
nHeightEllipse
Specifies the height of the ellipse used to create the rounded corners.
Return Values
If the function succeeds, the return value is the handle to the region.
If the function fails, the return value is NULL.
See Also
CreateRectRgn, CreateRectRgnIndirect, DeleteObject, SelectObject