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Re: Widget Event_Pro question [message #59603 is a reply to message #59476]

Wed, 02 April 2008 08:21

Spon
Messages: 178
Registered: September 2007

Senior Member

On Mar 31, 3:45 pm, David Fanning <n...@dfanning.com> wrote:

Hello once again,

I'm now trying to find the best way to tell widget A how many copies
of widget B are open, and what their IDs are, so that widget A knows
what to kill when the user presses the 'Graph Deletion' button. I'm
doing this by passing a pointer to an array around my top-level UVAL
structure, and concatenating the new graph widget IDs onto the array
as they get created, and then removing these IDs when the widget gets
killed.

I need to define this array before any instances of widget B are open.
Can I use a value of [-1L] for this? Or is -1 a valid widget ID number
that might cause problems later if IDL decides to label one of my
widgets -1 at some point?

Regards,

Chris

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[Message index]

		Re: Widget Event_Pro question By: David Fanning on Mon, 31 March 2008 07:45
		Re: Widget Event_Pro question By: Spon on Mon, 31 March 2008 07:14
		Re: Widget Event_Pro question By: David Fanning on Mon, 31 March 2008 06:45
		Re: Widget Event_Pro question By: Spon on Wed, 02 April 2008 08:21

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