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From: stevec@Apple.COM (Steve Christensen)
Newsgroups: comp.sys.mac.programmer
Subject: Re: UpdateMyWindow(), Any ideas?
Message-ID: <46457@apple.Apple.COM>
Date: 10 Nov 90 01:08:49 GMT
References: <2828.273adecd@miavx1.acs.muohio.edu>
Organization: Apple Computer Inc., Cupertino, CA
Lines: 24

rapickering@miavx1.acs.muohio.edu writes:
>[...]
>The problem:  I need to be able to update the window.
>              I use ShowWindow() and HideWindow(), I realize I could just
>close the window and re-open it, but that's really silly.  
>
>Anyone have a 'standard' way of updating a window.  I just want to erase the
>whole thing everytime I call my display function.

How about setting up your update routine like this?

	void UpdateMyWindow(WindowPtr theWindow) {

	  SetPort(theWindow);
	  BeginUpdate(theWindow);

	  EraseRect(&theWindow->portRect);

	  // do any drawing here

	  EndUpdate(theWindow);
	}

steve