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- To: email@example.com
- Subject: scrap-handler
- From: Andrew L. M. Shalit <alms>
- Date: Mon, 21 Jan 91 10:38:45 -0500
- Cc: info-macl
- In-reply-to: Richard Lynch's message of Fri, 18 Jan 91 16:50:13 CST <9101182250.AA00791@aristotle.ils.nwu.edu>
Date: Fri, 18 Jan 91 16:50:13 CST
From: firstname.lastname@example.org (Richard Lynch)
If I put some LISP objects (eg a list of structures) into the scrap (under
their own ostype), what do I need to do with internalize-scrap and
externalize-scrap to make this safe for other applications?
I have just looked at this and have no idea what I am doing, so any
pointers would be appreciated.
"TANSTAAFL" Rich email@example.com
John Doner firstname.lastname@example.org
You don't have to worry about this. The predefined version(s) of
EXTERNALIZE-SCRAP won't try to externalize Lisp objects. This clearly
wouldn't be safe, or even very meaningful.
In general, EXTERNALIZE-SCRAP can't simply blockmove a bunch of bits.
It needs to know the internal representation of the data, as well as a
representation which the Macintosh Scrap protocols will support. It
then needs to do an explicit conversion/copy. Nothing will happen
for types it doesn't know about.