Calling GUI function from Thread

["Taha Ali" <tahaarifali gmail com>]

Hi,

I am facing problem in calling a gui function from a thread. It goes
this way. The thread is calling an API function which is taking around
15 seconds to execute. During execution this function itself uses a
callback funtion (which I have regisated in the beginning of the
program with the library I am using) for continuously reporting the
progress. I am trying to set_text these messages in a label but after
first normal execution of this thread, the gui hangs on the next
call.  I am creating the thread on button_clicked event. I am also
using Glib::Dispatcher for communicationg with the GUI thread from my
worker thread but all the tricks are failing. When I dont try to
set_text any thing from this callback function, it works just fine
showing me the display (std::cout) on the screen.

Need help.

Thanks and Regards,
Taha