Re: NSTextView keydown alternative?
Re: NSTextView keydown alternative?
- Subject: Re: NSTextView keydown alternative?
- From: Nik Youdale <email@hidden>
- Date: Sun, 15 Jan 2006 10:17:01 +1100
On 15/01/2006, at 12:06 AM, Jim Correia wrote:
On Jan 14, 2006, at 6:58 AM, Nik Youdale wrote:
I am building a custom view that consists of a textview (mainly)
which holds first responder status, and allows text input by the
user. I have implemented the
"textView:shouldChangeTextInRange:replacementString:" delegate
method to detect when characters are pressed, and to also detect
when keys such as return and tab are pressed so that i can disable
their action and/or invoke other methods.
What I need is someway of detecting when other keys are pressed
such as delete and arrow keys. I have tried overriding keydown,
but then i can't type into the textview. I need someway of
detecting these keystrokes and to still allow typing and the
"textView:shouldChangeTextInRange:replacementString:" delegate
method.
If you are subclasses for other reasons, great. But you don't have
to subclass to customize the keystroke behavior. In addition to
textView:shouldChangeTextInRange:replacementString, look at - (BOOL)
textView:(NSTextView *)textView doCommandBySelector:(SEL)
commandSelector;
Jim
oh ok. thanks. i am still fairly new to cocoa though, and dont know
what a selector is.... could someone perhaps explain? is it some sort
of identifier for different keys? like enumerations?? or is it more
like the name of a method to be called as in requesting to receive
notifications from the notification centre??
also, what ever it is, how do i use it to identify which key was
pressed?
cheers
- Nik
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