Re: Threads ?:(

["jeff rob" <jeffrobins747 hotmail com>]

> Message: 3
> Date: Sat, 19 Nov 2005 17:36:48 +0100 (CET)
> From: congo imafexbb sk
> Subject: Threads ?:(
> To: gtkmm-list gnome org
> Message-ID: <45583 192 168 1 220 1132418208 squirrel mail imafexbb sk>
> Content-Type: text/plain;charset=iso-8859-2
>
> Hi,
>   i had problems with images.Now it's fine . But now i got the problem.I
> have myDrawingArea :) but when i want to display images in sequence and
> each after a second  i can't. It is true that i tried it wrong but how
> to do it ? I tried the sleep() function but it it definitelly wrong :)
> How does it work in gtkmm please.
>         Jan Vongrej

I don't know how you implemented it, but if I were to try to get it to work 
quick and dirty:

Create an integer in the private area of the class, set it to 0 in the 
constructor.  Use a switch in the on_expose_event(GdkEventExpose* /* event 
*/) function to determine which image to load.  Incriment the integer.  Do a 
sleep(1) for a 1 second sleep and then run queue_draw() to force a run of 
on_expose_event() again.  I don't know what the outcome would be of an 
expose event occuring during the sleep().  You could use a boolean value to 
control whether or not the integer incriments as a safety against the 
integer incrimenting when you don't want it to.

Ex:

int count=0;
bool up=true;

on_expose_event()
{
    switch(count)
    {
         case 1:
         {
               . . .
         }
         .
         .
         .
         default:
    }

    if(up)
    {
         up=false;
         sleep(1);
         up=true;
         queue_draw();
    }
}