XEventNext blocking

OpenGL
1

According my code and the fellowing link
http://tronche.com/gui/x/xlib/event-handling/manipulating-event-queue/XNextEvent.html

XEventNext is a blocking function and this is bad for a real time programme… :stuck_out_tongue:

My question is : How to get event without blocking the rendering loop under X Window with OpenGL ?

Thqnks you !

2

Use one of the XCheck*Event, those are non-blocking.
http://tronche.com/gui/x/xlib/event-handling/manipulating-event-queue/XCheckWindowEvent.html

3

Thanks, I will try that :slight_smile:

4

while(XPending(p_Display)){
XNextEvent(p_Display, &event);
…
}
is most probably what you are after.

5

Concur with the above solutions, however be aware you still get soft realtime. hard realtime and unix, specifically X are mutually exclusive.

6

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