[920] in Zephyr_Bugs
Re: zwgc: Error in XAllocColor
daemon@ATHENA.MIT.EDU (Greg Hudson)
Sat Mar 28 10:35:56 1998
Date: Sat, 28 Mar 1998 10:35:51 -0500
From: Greg Hudson <ghudson@MIT.EDU>
To: Jeff Evarts <jde@va.pubnix.com>
Cc: ghudson@MIT.EDU, bug-zephyr@MIT.EDU
In-Reply-To: "[919] in Zephyr_Bugs"
> it seems like we could keep all the colors in a list, then empty the
> list when the window-painting routine is complete.
My understanding is that you must keep the color allocated as long as
you're using it in a drawable. (It certainly wouldn't make sense that
you could deallocate a color you have drawn; otherwise you could
easily get more than 256 colors on an 8-bit display.)
So if we draw windowgram 1 and then draw windowgram 2, when windowgram
2 goes away we can't free all of its colors or we might free colors
which are still being displayed in windowgram 1.
