ProcessMessages

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4 total messages Started by Peder Sk�nning Wed, 06 Oct 2004 12:45

#846

Author: Peder Sk�nning
Date: Wed, 06 Oct 2004 12:45

13 lines
1196 bytes

In Delphi I call

Application.ProcessMessages

when I want for instance a progresbar to show the progres of a batch 
database update. Otherwise the progressbar does not change untill the batch 
run is finished.

How do I force a repaint of a jProgressBar in jBuilder during a batch run?

Thanks in advance

Peder

Re: ProcessMessages

#847

Author: Lori M Olson [TeamB]
Date: Wed, 06 Oct 2004 13:22

42 lines
2104 bytes

Peder Sk�nning wrote:

> In Delphi I call
> 
> Application.ProcessMessages
> 
> when I want for instance a progresbar to show the progres of a batch 
> database update. Otherwise the progressbar does not change untill the batch 
> run is finished.
> 
> How do I force a repaint of a jProgressBar in jBuilder during a batch run?
> 
> Thanks in advance
> 
> Peder 
> 
> 

This is a problem because your code is being invoked from the main GUI 
thread.  SwingUtilities.invokeLater was invented to solve this kind of 
problem.

http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html

-- 

Regards,

Lori Olson [TeamB]

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Re: ProcessMessages

#848

Author: Peder Sk�nning
Date: Wed, 06 Oct 2004 13:52

27 lines
1583 bytes

>> In Delphi I call
>>
>> Application.ProcessMessages
>>
>> How do I force a repaint of a jProgressBar in jBuilder during a batch 
>> run?
>>
>
> This is a problem because your code is being invoked from the main GUI 
> thread.  SwingUtilities.invokeLater was invented to solve this kind of 
> problem.
>
> http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html
>
> -- 
>
> Regards,
>
> Lori Olson [TeamB]
>

This is more sticky than Delphi! Do I have to write a method that repaints 
the ProgressBar and then run it through invokeLater?

Thanks

Peder

Re: ProcessMessages

#849

Author: Karl-Heinz Reng
Date: Wed, 06 Oct 2004 21:14

44 lines
1906 bytes

Hello,

look at this book,

Graphic Java Volume 2 Swing, 3 rd Edition from David M. Geary. On page 590
you will find
an example (Monitoring the Values of a Progress Bar). You must use Threads.

Regards

Karl-Heinz Reng
Reng-EDV

"Peder Sk�nning" <nospampax@nospampaxit.dk> schrieb im Newsbeitrag
news:4163f8b3$1@newsgroups.borland.com...
> >> In Delphi I call
> >>
> >> Application.ProcessMessages
> >>
> >> How do I force a repaint of a jProgressBar in jBuilder during a batch
> >> run?
> >>
> >
> > This is a problem because your code is being invoked from the main GUI
> > thread.  SwingUtilities.invokeLater was invented to solve this kind of
> > problem.
> >
> > http://java.sun.com/docs/books/tutorial/uiswing/misc/threads.html
> >
> > -- 
> >
> > Regards,
> >
> > Lori Olson [TeamB]
> >
>
> This is more sticky than Delphi! Do I have to write a method that repaints
> the ProgressBar and then run it through invokeLater?
>
> Thanks
>
> Peder
>
>

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