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Re: Basic Event Handling [message #55281 is a reply to message #55228]

Wed, 08 August 2007 04:30

Gaurav
Messages: 50
Registered: January 2007

Member

Thank you all, for your kind responses. I learnt three different ways
to do solve my problem. I could not implement Michael's way as my
object in display is already running very slow owing to the large
number of views and image objects added to it. Event listening
routines sound impressive but it was Dr. Fanning's clue that finally
helped me out.

I knew it had to be a very simple solution for IDL has never let me
down as yet. I knoew my troubles were over the moment I saw
'WIDGET_EVENT' function in Dr. Fanning's code. I really feel stupid
having missed it in the documentation earlier and beating about the
bush uselessly. But, there are very few proper sample codes that use
the functioality.

All I did was to create a button above my draw widget and check for
events on this button in the FOR loop with the /NOWAIT keyword set. In
the button event, I set a variable which I checked in the FOR loop
below the WIDGET_EVENT line and came out of the loop as soon as the
button was pressed. As simple as that!

Thank you all, once again.

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		Basic Event Handling By: Gaurav on Tue, 07 August 2007 04:13
		Re: Basic Event Handling By: Gaurav on Wed, 08 August 2007 04:30

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