Re: GTK Progress bar: assistance pls.

[Bin Chen <binary chen gmail com>]

在 2008-01-07一的 13:18 +0530，vijayasarathy setsindia net写道：
>         for(i=start_count;i<end_count;i++)
>         {
>                 //g_print("i = (%d)\n",i);
>                 while(j<100000)//To kill time, keep counting until a
> lakh
>                         j++;
>                 j = 0;//Make j 0 for the next loop.
>                 //sleep(2);
>                 pdata->fraction = (gdouble)i/(gdouble)(range);
> 
>                 fflush(NULL);
>                 //gtk_progress_bar_pulse (GTK_PROGRESS_BAR
> (pdata->pbar));
>                 //gtk_progress_bar_set_pulse_step(GTK_PROGRESS_BAR
> (pdata->pbar),pdata->fraction );
>                 gtk_progress_bar_set_fraction (GTK_PROGRESS_BAR
> (pdata->pbar),
> pdata->fraction);
>         }//End for i = start_count to end_count 

For this code snippet, you update all your progress in the loop and not
yield the control to gtk_main(), this is the problem.

You should not write code like this, using a timer to update the
progress bar instead of this loop, otherwise the drawing instruction
will be pending due to your full control of CPU.

Bin