Re: [gtk-list] Re: GDK_EXPOSE

[slogan crash cts com (Syd Logan)]

Thanks for pointing out this routine.

This routine checks for a GraphicsExpose or NoExpose event in the X event Q and 
then goes into gdk_translate_event(), converting it into a GDK_EXPOSE event or
GDK_NO_EXPOSE event, accordingly. If I go looking for GraphicsExpose events this
way, I guess I know that the GDK_EXPOSE returned is really a GraphicsExposure, 
although the overload of GDK_EXPOSE for two clearly different underlying X11 
event types is annoying.

But I might want to hear about the GraphicsExpose/NoExpose events asynchronously
via a signal callback. If I am copying a huge area it would be more efficient to
fire the copy off and go do something else. Because GDK translates both Expose 
and GraphicsExpose to GDK_EXPOSE, there would be this ambiguity -- was it an 
Expose of the window that got me to my signal function, or was it a 
GraphicsExpose? Should I redraw? Or report that an operation failed?

syd

On Feb 16,  7:23pm, john@giorgio.hart.bbk.ac.uk wrote:
} Subject: [gtk-list] Re: GDK_EXPOSE
} There's a function gdk_event_get_graphics_expose() to do g/expose
} processing. Does this solve your problem?
} 
} John
} 
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-- 
Syd Logan

slogan@cts.com
http://www.users.cts.com/crash/s/slogan