On 23-Oct-00 at 18:46, hector duque ([EMAIL PROTECTED]) wrote:
> 1) My lesstif application create a push button widget.
> 2) Then, a call back procedure is activated. This CB has a loop which
> put a pixmap into de button by each time in the loop (N times).
> Something like:
>
> for (i=0; i<N; i++){
>
> XpmCreatePixmapFromData( ....)
>
> other ....
>
> XtVaSetValues(DISPLAYbutton,
> XmNlabelType, XmPIXMAP,
Set the labelType resource at the widget creation time. You don't neet so
repeat this every time.
> XmNlabelPixmap, pixmapP,
> NULL);
> .
> }
>
> the problem: I only got the last update on the button; I mean, I
> expected to see N pixmaps into the button, in secuence, one after the
> last one, but not, I only see the last one.
You are using the wrong approach here. Both Xt and Xlib cache most of the
requests and flush them in blocks. This means that a sequence of
XtVaSetValues may not work as you want. Consider the option of creating a
list of pixmaps and using XtAppAddTimeout to register a function to change
the labelPixmap resource at each n milliseconds.
BTW, the AnimatedButton widget, available in Xlt, does exactly what you
want to do.
--
Carlos A. M. dos Santos
Federal University of Pelotas Meteorological Research Center
Av. Ildefonso Simoes Lopes 2791 Pelotas, RS, Brasil, CEP 96060-290
WWW: http://www.cpmet.ufpel.tche.br RENPAC (X.25): 153231641
Phone: +55 53 277-6767 FAX: +55 53 277-6722
