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Re: repeated use of TVRD() gives different results [message #93750 is a reply to message #93748]

Wed, 12 October 2016 06:41

Bill Nel
Messages: 31
Registered: October 2010

Member

There's a note in the documentation under TVRD about "unexpected results" unless IDL is providing the backing store (which I hadn't seen before). Ages ago, I found that TVRD() didn't work properly when the graphics window extended off the edge of the screen. (I solved it by copying the window's contents to a pixmap and calling TVRD on the pixmap.) The note explains why.

--Wayne

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[Message index]

		repeated use of TVRD() gives different results By: wlandsman on Tue, 11 October 2016 11:44
		Re: repeated use of TVRD() gives different results By: Burch on Tue, 11 October 2016 12:55
		Re: repeated use of TVRD() gives different results By: wlandsman on Tue, 11 October 2016 20:29
		Re: repeated use of TVRD() gives different results By: Bill Nel on Wed, 12 October 2016 06:41
		Re: repeated use of TVRD() gives different results By: wlandsman on Wed, 12 October 2016 20:11
		Re: repeated use of TVRD() gives different results By: penteado on Fri, 28 October 2016 12:03
		Re: repeated use of TVRD() gives different results By: rawahranger on Sat, 15 October 2016 11:36

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