gdkPixbufRenderToDrawableAlpha: gdkPixbufRenderToDrawableAlpha

Description

Renders a rectangular portion of a pixbuf to a drawable. The destination drawable must have a colormap. All windows have a colormap, however, pixmaps only have colormap by default if they were created with a non-NULL window argument. Otherwise a colormap must be set on them with gdk_drawable_set_colormap. WARNING: gdk_pixbuf_render_to_drawable_alpha is deprecated and should not be used in newly-written code. This function is obsolete. Use gdkDrawPixbuf instead.

Usage

gdkPixbufRenderToDrawableAlpha(object, drawable, src.x = 0, src.y = 0, dest.x, dest.y, width = -1, height = -1, alpha.mode = NULL, alpha.threshold = NULL, dither = "GDK_RGB_DITHER_NORMAL", x.dither = 0, y.dither = 0)

Arguments

object

[GdkPixbuf] A pixbuf.

drawable

[GdkDrawable] Destination drawable.

src.x

[integer] Source X coordinate within pixbuf.

src.y

[integer] Source Y coordinates within pixbuf.

dest.x

[integer] Destination X coordinate within drawable.

dest.y

[integer] Destination Y coordinate within drawable.

width

[integer] Width of region to render, in pixels, or -1 to use pixbuf width.

height

[integer] Height of region to render, in pixels, or -1 to use pixbuf height.

alpha.mode

[GdkPixbufAlphaMode] Ignored. Present for backwards compatibility.

alpha.threshold

[integer] Ignored. Present for backwards compatibility

dither

[GdkRgbDither] Dithering mode for GdkRGB.

x.dither

[integer] X offset for dither.

y.dither

[integer] Y offset for dither.

Details

On older X servers, rendering pixbufs with an alpha channel involves round trips to the X server, and may be somewhat slow.