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Mouse and keyboard events in a draw widget [message #10544]

Wed, 17 December 1997 00:00

James Albert
Messages: 4
Registered: September 1996

Junior Member

Hi
I'm new here, and fairly new to IDL programming. I have a problem,
which probably has an easy solution, but I can't find any references to
the problem area in the manuals. If anyone here can help me, I would be
most appreciative

Here's the bzz:

I have a draw widget that I do a bunch of image/coastline plotting in.
I am currently currently working on a tool that will let the user
measure a target in the image, in pixels. The tool has a vernier which
should open and close (imagine a C-clamp) and the tool should rotate.
I have all the code in place with one exception; no user interface to
the actions. I think I have two choices;
1) an additional base with four buttons on it:open,close,rotate
clockwise, rotate counter clockwise.
This should be relatively easy to implement, but it's not my first
choice
2) using the cursor keys to hook the actions. Unfortunately, I can't
find any information on getting keyboard events in DrawWidgets -
get_kbrd() just doesn't work until the widget is destroyed

Any ideas?
--
James Albert
Programmer/Analyst
Satlantic Inc.
902-492-4780 (voice)
902-492-4781 (fax)
james@satlantic.com

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[Message index]

		Mouse and keyboard events in a draw widget By: James Albert on Wed, 17 December 1997 00:00
		Re: Mouse and keyboard events in a draw widget By: David Foster on Thu, 18 December 1997 00:00

Previous Topic:	resizing draw widget
Next Topic:	IDL verses other interpertative languages (tcl/tk, khouros, pv_wave, etc).

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