unknown TCanvas problem

From: Matt Fritts (mfritts@physics.utoledo.edu)
Date: Thu Nov 11 1999 - 19:38:25 MET


Hello all.

I've been running Version 2.22/10 for NT for a few months. Recently a
progressively worsening problem has come up. If I choose to create
multiple instances of TCanvas with commands like

c1=new TCanvas("c1","c1")
c2=new TCanvas("c2","c2")

etc., eventually an error occurs:

*** TGWin32PixmapObject: Create Bitmap error - 8  0

and the TCanvas created cannot display anything. Any TCanvas created
after this produces the same error.

For a while it only occurred after maybe 8 TCanvas were created... now
it happens after the first one. It seems to have become worse after I
downloaded the newest version of Root and began switching between the
two versions to test my macros.

A similar problem occurred some time ago around when I switched to
Version 22. At the time I tried deleting a number of temporary files on
my hard drive which seemed to fix things. But I've been unable to
reproduce this "fix".

Any hints on a fix would be GREATLY appreciated.

Thanks,

Matt Fritts



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