| Re: blank window pops up after exit xmovie [message #40063] |
Sun, 11 July 2004 11:58  |
biophys
Messages: 68
Registered: July 2004
|
Member |
|
|
Thanks, David. I should put those two lines in the very beginning
instead of into different draw_widget event entries.
IF (TAG_NAMES(ev, /STRUCTURE_NAME) eq 'WIDGET_DRAW') THEN BEGIN
Widget_Control, event.id, Get_Value=wid
WSet, wid
David Fanning <davidf@dfanning.com> wrote in message news:<MPG.1b58fb5da6d61dda9897d3@news.frii.com>...
> biophysics writes:
>
>> I'm a newbie with widget programing. I was trying to call your xmovie
>> as triggered by a widget_button in the main program. After I exit the
>> xmovie there 's only the main program with a draw widget and several
>> buttons left. But then if I click on the draw widget, a blank window
>> pops up. Will you be able to explain what's wrong with my program?
>> What should I do to avoid having this "window,0" pop-up?
>
> XMovie!? What is this, embarrass David week? Sigh...
>
> What's wrong with your program has nothing to do with me. :-)
>
> You don't know where you are drawing your graphics.
> When you click in your draw widget, your event handler
> is issuing some kind of graphics command, but your
> draw widget window isn't the current graphics window.
> If it was, the graphics would go into it and not be
> forced to open a window itself.
>
> Inside the event handler, you might make the draw widget
> the current graphics window by doing something like this:
>
> Widget_Control, event.id, Get_Value=wid
> WSet, wid
>
> Where event.id is the draw widget.
>
> Cheers,
>
> David
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
