gtk_main_iteration_do() usage

["James Bamford" <fromweb jimtreats com>]

I've just started looking into using GTK for a gui on top of an existing  
main loop, i'm hoping that by using gtk_main_iteration_do(FALSE) i will be  
able to get the GUI and my existing main loop all working together  
reasonably well in a single thread.

I've just started testing it with hello world, on the latest version of  
win32 GTK and i've discovered that gtk_main_iteration_do() is ALWAYS  
returning TRUE.

The docs say that gtk_main_iteration_do() returns TRUE when quit has  
happened inside the message loops somewhere.. yet as i said its TRUE all  
the time at the moment. This presents a small problem with regard to  
closing the programme by clicking its x button or in this case the hello  
world button as well.

Is there something i have to do differently in initialising GTK when i  
wish to use gtk_main_iteration_do() its just looking at the src i found  
the definition of it and noticed this

if (main_loops)
    return !g_main_loop_is_running (main_loops->data);
else
    return TRUE;

which kind of hints like its doing the else path behaviour in my case, ie.  
main_loops is NULL, which makes me wonder if i've not set up everything  
correctly.. I literally copied and pasted the hello world app from the  
main GTK site (which originally has gtk_main() and i've changed it for  
gtk_main_iteration_do() within a loop)

Thanks for your time

Regards

James

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