Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uunet!ncis.tis.llnl.gov!lance.tis.llnl.gov!carlson
From: carlson@lance.tis.llnl.gov (John Carlson)
Newsgroups: comp.sys.next
Subject: Overlapping Button Matrices, upper doesn't occlude lower
Message-ID: <616@ncis.tis.llnl.gov>
Date: 15 Nov 89 08:01:57 GMT
Sender: news@ncis.tis.llnl.gov
Reply-To: carlson@lance.tis.llnl.gov (John Carlson)
Distribution: usa
Organization: Lawrence Livermore National Laboratory, Livermore CA
Lines: 19


I decided to build a small keyboard with Interface Builder
(much like Synthesizer.app).  I decided to use two button matrices,
one matrix for the white keys, and the other for the black keys
(with Transparent, Disabled for B-C and E-F gaps).  I used two
icons for the white keys (pressed and normal) and two for the black.
The prototype button was able to play the System sound I specified, but
neither the Test Mode or compiled version would play the sound (I
tried one sound for all buttons in the matrix).

When testing and in the final version, if I pressed a white key,
The white icon would draw over the black icon.  Does someone
have an easy fix which would keep the black matrix from being
drawn over?

Thanks,

John Carlson
carlson@tis.llnl.gov