SetRectRgn

Overview

Group

Quick Info

Windows NT
Yes
Win95
Yes
Win32s
Yes
Import Library
gdi32.lib
Header File
wingdi.h
Unicode
No
Platform Notes
Windows 95: 16-bit coordinates only

The SetRectRgn function changes a region into a rectangular region with the specified coordinates.

BOOL SetRectRgn(

HRGN hrgn,	// handle of region
int nLeftRect,	// x-coordinate of upper-left corner of rectangle
int nTopRect,	// y-coordinate of upper-left corner of rectangle
int nRightRect,	// x-coordinate of lower-right corner of rectangle
int nBottomRect	// y-coordinate of lower-right corner of rectangle
);

Parameters
hrgn

Identifies the region.

nLeftRect

Specifies the x-coordinate of the upper-left corner of the rectangular region.

nTopRect

Specifies the y-coordinate of the upper-left corner of the rectangular region.

nRightRect

Specifies the x-coordinate of the lower-right corner of the rectangular region.

nBottomRect

Specifies the y-coordinate of the lower-right corner of the rectangular region.

Return Values
If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero.

Remarks
The region does not include the lower and right boundaries of the rectangle.