InvertRgn

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 InvertRgn function inverts the colors in the specified region.

BOOL InvertRgn(

HDC hdc,	// handle of device context
HRGN hrgn	// handle of region to be inverted
);

Parameters
hdc

Identifies the device context.

hrgn

Identifies the region for which colors are inverted. The region's coordinates are presumed to be logical coordinates.

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

If the function fails, the return value is zero.

Remarks
On monochrome screens, the InvertRgn function makes white pixels black and black pixels white. On color screens, this inversion is dependent on the type of technology used to generate the colors for the screen.