Path: utzoo!yunexus!geac!syntron!jtsv16!uunet!husc6!think!ames!ncar!tank!uxc!uxc.cso.uiuc.edu!zaphod!newton!clam
From: clam@newton.ncsa.uiuc.edu
Newsgroups: comp.sys.mac.programmer
Subject: Using Textedit in Paint programs
Message-ID: <900011@newton>
Date: 16 Oct 88 08:39:00 GMT
Article-I.D.: newton.900011
Lines: 18
Nf-ID: #N:newton:900011:000:683
Nf-From: newton.ncsa.uiuc.edu!clam    Oct 16 03:39:00 1988


I am trying to write a color paint program.  I would love to know how I can 
make use of TextEdit to implement the text tool in the tool palette (the 'A' 
icon).  Specifically:

	[1] How do I prevent existing graphics that is in the view rect of text
edit record from being erased?

	[2] When the user types <backspace>, how do I erase the last character
and restore the background graphics that was replaced by the character?

	All existing paint programs seem to be able to do this quite well and
I suspect they make use of text edit since they have the blinking text caret
to prompt users to enter text.  Is this true?

Thanks in advance,
Chih-Chao Lam
lam@sumex-aim.stanford.edu