blend

Description:

[ CCode ( cname = "gimp_preview_area_blend" ) ]
public void blend (int x, int y, int width, int height, ImageType type, uint8[] buf1, int rowstride1, uint8[] buf2, int rowstride2, uint8 opacity)

Composites buf1 on buf2 with the given opacity, draws the result to this and queues a redraw on the given rectangle.

Since GIMP 2.2

Parameters:

this	a PreviewArea widget.
x	x offset in preview
y	y offset in preview
width	buffer width
height	buffer height
type	the ImageType of `buf1` and `buf2`
buf1	a uchar buffer that contains the pixel data for the lower layer
rowstride1	rowstride of `buf1`
buf2	a uchar buffer that contains the pixel data for the upper layer
rowstride2	rowstride of `buf2`
opacity	The opacity of the first layer.