Re: XTranslateCoordinates() performance problem

[Keith Packard <keithp keithp com>]

Around 23 o'clock on Nov 15, Owen Taylor wrote:

>  2) Use the last x, y received for the event, then queue
>     an idle with a priority lower than events in which
>     you actually call XTranslateCoordinates() and 
>     synthesize a pure-move ConfigureNotify if the 
>     x, y you retrieve are different than the last x,y.

You needn't ever call XTranslateCoordinates -- the window manager will 
eventually send you a synthetic configure notify whenever your position 
changes.  Ignore all position information in real configure notify events 
and replace them with the last coordinates from a synthetic configure.  
That's what Xt does.  The only effect is that the application is slightly 
behind the server when resizing occurs, but this is benign as the synthetic 
event will follow shortly.

keithp keithp com	 XFree86 Core Team		SuSE, Inc.