| gdkPixbufRenderPixmapAndMask {RGtk2} | R Documentation |
Creates a pixmap and a mask bitmap which are returned in the pixmap.return
and mask.return arguments, respectively, and renders a pixbuf and its
corresponding thresholded alpha mask to them. This is merely a convenience
function; applications that need to render pixbufs with dither offsets or to
given drawables should use gdkDrawPixbuf and gdkPixbufRenderThresholdAlpha.
gdkPixbufRenderPixmapAndMask(object, alpha.threshold = 127)
|
[GdkPixbuf] A pixbuf. |
|
[integer] Threshold value for opacity values. |
The pixmap that is created is created for the colormap returned
by gdkRgbGetColormap. You normally will want to instead use
the actual colormap for a widget, and use
gdkPixbufRenderPixmapAndMaskForColormap.
If the pixbuf does not have an alpha channel, then *mask.return will be set
to NULL.
A list containing the following elements:
|
[GdkPixmap] Location to store a pointer to the created pixmap,
or NULL if the pixmap is not needed. |
|
[GdkBitmap] Location to store a pointer to the created mask,
or NULL if the mask is not needed. |
Derived by RGtkGen from GTK+ documentation