On 5/19/2012 3:00 PM, Tom Rondeau wrote:

> Have you read up on Qt and how to handle the QApplication? They might
> have some hints for you on how to handle your situation.
> 

If I create the block in the same thread I call exec() then it works. I
was creating the block in my main thread and then spawning a boost
thread to exec() the block. That didn't work.

I also have a problem that about 25% of the time my app aborts when I
try to use the qtgui sink.  Some times it runs just fine. Others it
aborts. when it aborts I can start it again right away and it works.
when I take the qt sink out it never aborts.

I also see a performance difference when using grc. If I create a simple
flowgraph with just a usrp sink and a gui fft window I can use higher
sampling rates with the wxwidget version before I hit overruns.

stephen

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