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From: mikael@vall.dsv.su.se (Mikael Kindborg)
Newsgroups: comp.windows.ms
Subject: Re: Which raster op?
Message-ID: <422@vall.dsv.su.se>
Date: 24 Aug 89 09:07:35 GMT
References: <421@vall.dsv.su.se>
Reply-To: mikael@vall.UUCP (Mikael Kindborg)
Organization: University of Stockholm, Sweden
Lines: 16

Arrrgh! The first line of my message was somehow deleted by our
mailing software. The article should have read as follows:

I want the source bitmap to replace the destination
except when the source is white. That is I want to
use white as a transparent color. Which raster
operation should I use? Do I need to do more than
one bitblt, using different raster ops in combination?

As far as I have understood transparency is not
supported in Windows. This is unfortunate since
transparency is useful in many cases.


Mikael Kindborg, Dept of Comp. Science, Univ. of Stockholm
Mail: mikael@vall.dsv.su.se