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Linux (Xlib) Application hangs on GetGeometry()

linux, programming, xlib

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# 1  
Old 06-12-2018
Linux (Xlib) Application hangs on GetGeometry()


I was just wondering why XGetGeometry() would cause a hang in an application.

In the xlib book it says any of there "Get" functions don't necessarily return immediately.

Is there a way to make a it return immediately or other functions that will give me the same results.

I tried using XFlush() and Xsync() before & after the XGetGeometry() function call. Also I tried using xlib's XGetWindowAttributes() instead of XGetGeometry().

Moderator's Comments:
Linux (Xlib) Application hangs on GetGeometry() edit by bakunin: moved to the fitting forum

Last edited by bakunin; 06-12-2018 at 06:28 PM..
# 2  
Old 07-12-2018
Because they're stateful: The server doesn't just acknowledge receiving it, it must perform the command and retrieve the answer before the command returns.
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