SetRopEffect

Syntax

LONG SetRopEffect (LONG nEffect, LONG nParam)

Description

SetRopEffect() sets the raster operation mode used to process the image data prior displaying the image.

Two modes of operation are available:

•No operation
There is no image processing.

•Mirror up/down:
The image is mirrored at the horizontal axis (vertical image flip).

Hinweis

The EnableHorizontalFlipping and EnableVerticalFlipping properties can also be used to query or set the image orientation.

Parameters

nEffect
IS_SET_ROP_MIRROR_UPDOWN	nParam = 0: no image flip nParam = 1: vertical image flip
IS_SET_ROP_MIRROR_LEFTRIGHT	nParam = 0: no image flip nParam = 1: horizontal image flip
nParam	ROP effect dependent parameter. See above.

Return values

IS_SUCCESS	Function executed successfully
IS_NO_SUCCESS	General error message

Related properties

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SetRopEffect