Re: What triggs dataRepresentationOfType?
Re: What triggs dataRepresentationOfType?
- Subject: Re: What triggs dataRepresentationOfType?
- From: "I. Savant" <email@hidden>
- Date: Wed, 17 Oct 2007 07:08:35 -0400
- (NSData *)dataRepresentationOfType:(NSString *)aType
My question is what triggers the method dataRepresentationOfType and
how it's done. Is it the Runtime system that automatically sends
dataRepresentationOfType to the current NSDocument when the user
chooses Save or is something else happenning?
Any time you want to know the answer to questions like this your
first stop should be the documentation. The documentation, for
example, specifically says of this method:
"This method is invoked by the default implementation of
fileWrapperRepresentationOfType:."
You can also look at the "companion guide" section of the doc that
contains the method you're interested in (the very top of the
NSDocument doc, in this case). It typically refers you to one or more
documents covering the topic in general. In this case, "Document-Based
Applications Overview" which in turn contains a section titled
"Message Flow in the Document Architecture" that explains in great
detail exactly what you're asking.
It's vitally important to master searching the documentation. It
all started with searching for the method you mentioned. I had to do
that just now because I don't remember where everything is and what
it's called, but in five seconds, I had detailed answers to your
question.
It sure beats waiting for an answer from the list. :-)
--
I.S.
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