On Jun 6, 2008, at 11:19 AM, Andrew Merenbach wrote:
I believe that you might do some magic with -keyDown: -- I'm sure
that someone else will have more knowledge about this -- but bear in
mind that the latest-gen MacBooks (of which I have one) do not have
separate Return and Enter keys -- just one. (Maybe the fn button
changes it, but even if so, users would have to figure that out.)
What about making alt-Enter/alt-Return add a newline, while leaving
Return and Enter both to do the job of activating the OK button?
Hope this helps, even if only a little!
Here is something I wrote on this before:
Here is the normal sequence when a text view receives key events:
NSTextView's keyDown: passes events to interpretKeyEvents:, which is
where they enter key binding and input management. They come out
either as insertText: or as doCommandBySelector: (see NSResponder.h
for these three methods).
In particular, non-text keys like enter or return will (with the
standard key bindings) end up using doCommandBySelector: to call
methods like insertNewline: on the NSTextView.
If you are using an NSTextView, you should be able to implement the
text view delegate method
If you wish to do something different at this point, you might (for
example) look at the current event and ascertain whether it is a key
down and if so, what key it is.
In most cases you don't actually want to intervene at keyDown: time.
That's because keyDown: takes place before all of the key binding and
input management that is necessary in general to make sense of
keystrokes; it would be easy, for example, for you to break input
methods like those used for East Asian text. One possibility would be
to use a keyDown: override to determine whether a particular keystroke
is enter or return, but not to make any modifications at that point;
instead, you could use that information to set a flag that would later
be used at doCommandBySelector time.
Douglas Davidson
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