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Re: Need IDL 8 Help [message #87316 is a reply to message #87311]

Thu, 23 January 2014 18:09

Matthew Argall
Messages: 286
Registered: October 2011

Senior Member

I would do something like the following: Create a hash whose keys represent the message that is to be sent/received. The value of the key is a list that will contain each of the objects corresponding to that message. You can then check if an object is already in the list.

IDL> theHash = hash()
IDL> obj1 = obj_new('idl_container')
IDL> obj2 = obj_new('idlanroi')
IDL> message = 'CHANGED_COLORS'
IDL>
IDL> theHash[message] = List()
IDL> if (max(theHash[message] eq obj1) eq 0) then theHash['CHANGED_COLORS'] -> add, obj1
IDL> print, theHash[message]
<ObjHeapVar21665(IDL_CONTAINER)>
IDL>
IDL>
IDL> if (max(theHash[message] eq obj1) eq 0) then theHash['CHANGED_COLORS'] -> add, obj1
IDL> print, theHash[message]
<ObjHeapVar21665(IDL_CONTAINER)>
IDL>
IDL> if (max(theHash[message] eq obj2) eq 0) then theHash['CHANGED_COLORS'] -> add, obj2

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[Message index]

		Need IDL 8 Help By: David Fanning on Thu, 23 January 2014 15:57
		Re: Need IDL 8 Help By: Matthew Argall on Thu, 23 January 2014 18:09
		Re: Need IDL 8 Help By: David Fanning on Fri, 24 January 2014 11:22
		Re: Need IDL 8 Help By: Matthew Argall on Fri, 24 January 2014 11:56
		Re: Need IDL 8 Help By: David Fanning on Fri, 24 January 2014 12:09
		Re: Need IDL 8 Help By: Matthew Argall on Fri, 24 January 2014 12:22
		Re: Need IDL 8 Help By: David Fanning on Fri, 24 January 2014 12:25
		Re: Need IDL 8 Help By: kagoldberg on Sat, 25 January 2014 00:55

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