[Lazarus] GTK2 threading

[Michael Schnell]

On 01/22/2013 06:52 PM, Anton Kavalenka wrote:
>
>
> But GTK Widgetset uses pure Xlib calls for determining keyboard states.
> Xlib thread-safety is not initialized in GTK2 widgetset.

AFAIK: As the GUI and Event-queue related LCL classes (i.e. 
TApplication) are not thread save themselves (e.g. using global 
variables). It does not make sense to attach to the System's Widget set 
in a thread safe way.

To allow for multiple GUI threads a major update of the appropriate LCL 
functions would be necessary, so that multiple threads can create their 
own dedicated TApplication instances.

-Michael
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