Re: screen display only updates on callback to text widget

Bill,

The is a update method for your mainwindow.

$mainWindow->update();

When ever you call this method it will update the entire gui. I think each 
widget might
also inherit this method. So you may want to try $t->update after each read 
to see
if it works. If not you could update mainwindow in your read loop. Not sure 
been a while since
I have done any work with text widgets. If I remember correctly update can 
eat up resources
so you may have to do some experimentation to see what works best for you.


Regards,

Mike

At 03:01 PM 5/6/2005, Bill Mezian wrote:
>Hello all,
>
>On the Win32 platform using active State 5.8x, I have a program that while
>processing a file, writes updates to a text widget, with processing
>beginning by a command subroutine from a button press:
>
>$f ->Button(-text => "Process New",
>                 -font => 'tahoma 8 bold',
>                 -activebackground => '#D0C36B',
>                 -command => \&process_data_file)
>                 ->pack(-side => 'left', -expand => 1, -fill => 'x', -pady =>
>1, -anchor => 'w');
>
>The callback to the ROText widget is:
>
>$t->insert("end", "Adding ". $dlrstnum . " " . $year . " " . $make . " " .
>$model . "\n");
>
>called from within a while loop. My problem is this, the screen display only
>updates after all of the processing has finished, rather than writing each
>line out to the window as it is being processed.
>
>Can anyone help with a suggestion on how to get the screen display to update
>as the file is processing? The behavior is also the same using a progress
>bar, and output from a ping command to the same text widget.
>
>Thanks for any help!
>
>Bill
>
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