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CreateRoundRectRgn info  Overview  Group

The CreateRoundRectRgn function creates a rectangular region with rounded corners.

HRGN CreateRoundRectRgn(

    int nLeftRect,

// x-coordinate of the regionís upper-left corner

    int nTopRect,

// y-coordinate of the regionís upper-left corner

    int nRightRect,

// x-coordinate of the regionís lower-right corner

    int nBottomRect,

// y-coordinate of the regionís 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. To get extended error information, call GetLastError.

See Also

CreateRectRgn, CreateRectRgnIndirect, DeleteObject, SelectObject


file: /Techref/os/win/api/win32/func/src/f11_3.htm, 3KB, , updated: 2000/4/7 12:19, local time: 2022/5/26 01:31,
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