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From: dwb@apple.UUCP
Newsgroups: comp.sys.mac
Subject: Re: Custom Dragging?
Message-ID: <718@apple.UUCP>
Date: Tue, 5-May-87 12:54:43 EDT
Article-I.D.: apple.718
Posted: Tue May  5 12:54:43 1987
Date-Received: Thu, 7-May-87 02:18:03 EDT
References: <1462@tekig4.TEK.COM>
Reply-To: dwb@well.UUCP (Dave W. Berry)
Distribution: world
Organization: Whole Earth 'Lectronic Link
Lines: 19
Keywords: custom dragcntl control

In article <1462@tekig4.TEK.COM> bradn@tekig4.UUCP (Bradford Needham) writes:
>The symptom I get is that if my dragCntl routine returns a nonzero
>value (to tell the control manager that I'm doing custom dragging),
>TrackControl returns 0 (saying that the mouse was released outside any
>interesting part of the control).
>
>Looking at the Inside Macintosh description of custom dragging, I don't
>see how the necessary information can possibly be communicated between
>TrackControl and a custom control.
>
>Has anyone successfully built custom dragging?  How did you do it?
	Yup.  Looks like you found the problem.  The solution I've taken
	is to always return 0 to TrackControl.  TrackControl then does
	a little bit of extra stuff, determines that the mouse button
	is up and returns the correct part code.
-- 
	David W. Berry
	dwb@well.uucp                   dwb@Delphi
	dwb@apple.com                   293-0752@408.MaBell