CreateEllipticRgnIndirect info  Overview  Group

The CreateEllipticRgnIndirect function creates an elliptical region.

HRGN CreateEllipticRgnIndirect(

CONST RECT *lprc	// pointer to structure defining bounding rectangle
);

Parameters

lprc

Points to a RECT structure that contains the coordinates of the upper-left and lower-right corners of the bounding rectangle of the ellipse.

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.

Remarks

A bounding rectangle defines the size, shape, and orientation of the region: The long sides of the rectangle define the length of the ellipse’s major axis; the short sides define the length of the ellipse’s minor axis; and the center of the rectangle defines the intersection of the major and minor axes.

The coordinates of the bounding rectangle are specified in logical units.

See Also

CreateEllipticRgn, DeleteObject, RECT, SelectObject