Re: [gtkmm] progress bar

[Martin Schulze <martin-ml hippogriff de>]

Am 2003.09.16 20:45 schrieb(en) Mani Murugesan:
> Hello,
> When I do a long computation inside a button clicked method, the
> progress bar
> does not get updated when I call its pulse() method from within the
> computation. For example:
>
> void somedialog::on_some_btn_clicked()
> {
>   for (int i=0; i<50; i++)
>   {
>     for (int j=0; j<60000; j++)
>       for (int k=0; k<1000; k++)
>         ; // dummy loop waste some time here
>
>     cout << "Test: " << endl;
>     progressbar->pulse(); // this does not update the progress bar
>   }
> }
>
> Anything else I have to do?

progessbar->pulse() queues a redraw event that doesn't get processed
until the next iteration of the main loop.
I would try to add Gtk::MainContext::get_default()->iteration(false);
after progressbar->pulse() but I'm not sure if this is correct.

Regards,

  Martin