Packages requiring Xorg "BackingStore" "true"

Sandro Mani manisandro at
Wed Sep 11 12:12:44 UTC 2013

On 11.09.2013 13:22, Florian Weimer wrote:
> On 09/11/2013 01:07 PM, Sandro Mani wrote:
>> Thanks for you quick reply, unfortunately the replot function is defined
>> nowhere.
> Oooh.  Perhaps try calling GWXFLUSH(), then?  That should restore the 
> window contents from the stored pixmap.  It won't work if client code 
> ever calls GWXDRAWTOWINDOW(), though.
> Can you provide more context?
The xfoil code is here [1].  The relevant code for the plot window is 
what is in the plotlib subfolder. I've just checked whether that Expose 
case is ever reached, and it does not seem the case, since GWXCURS is 
apparently only called occasionally based on user input on the xfoil 
command line. I guess there would need to be a permanently active while 
loop which looks at X events, the question is how to do it without 
blocking the rest of the program - I fear that it is not so easy to do 
without major changes at the program logic.

But thanks for your suggestions, now I have a good idea of where to 
fiddle around;)



More information about the devel mailing list