Re: Help with text input
Re: Help with text input
- Subject: Re: Help with text input
- From: Bill Appleton <email@hidden>
- Date: Fri, 30 Apr 2010 10:07:02 -0700
wow thanks everyone so much
this is working great!
On Fri, Apr 30, 2010 at 10:04 AM, Douglas Davidson <email@hidden>wrote:
>
> On Apr 30, 2010, at 9:59 AM, Charles Srstka wrote:
>
> > On Apr 30, 2010, at 11:41 AM, Douglas Davidson wrote:
> >
> >> Here is the normal sequence when a text-handling view receives key
> events: the keyDown: method 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). insertText: will be used for text input, doCommandBySelector:
> with an appropriate selector for special keys like arrow keys. The relevant
> selectors are mostly listed in NSResponder.h. The default NSResponder
> implementation of doCommandBySelector: checks whether the receiver responds
> to the given selector, and if so calls it; otherwise it is passed on to the
> next responder's doCommandBySelector:.
> >
> > That’s actually for NSTextInput, which according to the docs is slated
> for deprecation in favor of NSTextInputClient. If you need to be compatible
> with Mac OS X 10.4 and earlier, than NSTextInput is the way to go, but
> otherwise, NSTextInputClient is probably a better choice.
>
> Yes, with NSTextInputClient that would be insertText:replacementRange:.
> The other NSTextInputClient methods would be used for input methods. A
> full custom implementation of all of this would typically be used only with
> a completely custom text object; most clients just use NSTextView or a
> custom subclass thereof, and override only the methods they are especially
> concerned with.
>
> Douglas Davidson
>
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