[Lazarus] Message Loop paused when no interaction with mouse?

Henry Vermaak henry.vermaak at gmail.com
Wed Apr 20 16:50:13 CEST 2011

On 20/04/11 15:46, zeljko wrote:
> On Wednesday 20 of April 2011 16:31:59 Henry Vermaak wrote:
>> On 20/04/11 15:26, Michael Schnell wrote:
>>> On 04/20/2011 04:05 PM, Henry Vermaak wrote:
>>>> PostMessage does wake up the main thread (when you compile your
>>>> project with -dusecthreads). And I use QueueAsyncCall with a manual
>>>> wakeup, which works well for me on win32 and gtk2. I use svn head, by
>>>> the way.
>>> You are not _supposed_ to do that. QueuAsyncCall _should_ work for
>>> itself (instantly and without doing polling ). So this is a work around
>>> and not a reliable consideration.
>> Huh, what polling?  I know this is not ideal, that's why there is a bug
>> report.  All QueueAsyncCall needs to do is to wake up the main thread
>> after it has queued the function.  There is nothing "broken in the
>> infrastructure" as you keep saying, or perhaps you'd like to point us to
>> some specific code you find problematic to explain your statements?
> Have you tried to add WakeUpMainThread in QueueAsyncCall() and test it with
> all ws ? What happens ?

Hehe, we're saying the same thing, but talking past each other.  I 
commented exactly this (with a patch) on the bug tracker, it seems to 
work for gtk2, can you test with qt?


More information about the Lazarus mailing list