Re: Overlaying an image with transparency?

[Taura Milana <learfox furry ao net>]

On 2002.03.11 16:08 Ronald Kneusel wrote:
> I have a drawing area with an image in it and want to overlay another
> image.  The second image is binary, 1 means that pixel should be drawn
> and 0 means that the pixel is to be transparent.
>
> Is there a way to overlay this image without actually moving through it
> and either drawing the pixel or not based on the value?  Can I make a
> type of colormap with 2 colors only, one transparent?

What about using the GdkGC's clip mask?

You'd need a GdkBitmap as the clip mask, and a GdkPixmap
to draw ask masked by the GdkBitmap.


--
Sincerely,                  ,"-_                         \|/
-Capt. Taura M.             ,   O=__                    --X--
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                  http://furry.ao.net/~learfox/