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CreateRectRgn info  Overview  Group

The CreateRectRgn function creates a rectangular region.

HRGN CreateRectRgn(

    int nLeftRect,

// x-coordinate of regionís upper-left corner

    int nTopRect,

// y-coordinate of regionís upper-left corner

    int nRightRect,

// x-coordinate of regionís lower-right corner

    int nBottomRect 

// y-coordinate of regionís lower-right corner

   );

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.

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

The region will be exclusive of the bottom and right edges.

See Also

CreateRectRgnIndirect, CreateRoundRectRgn, DeleteObject, SelectObject

See also:


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