Re: How to make NSImageView respond to keyboard events?
Re: How to make NSImageView respond to keyboard events?
- Subject: Re: How to make NSImageView respond to keyboard events?
- From: Peter Wollschlaeger <email@hidden>
- Date: Fri, 14 May 2004 20:09:57 +0200
Am 14.05.2004 um 18:32 schrieb matt neuburg:
>
On Thu, 13 May 2004 23:25:57 +0200, Laurent Bertacchini
>
<email@hidden> said:
>
>
> I'm writing a small picture viewer, and I use a subclass of
>
> NSImageView
>
> to display the pictures. Everything works fine except that on some
>
> occasions (ex. full screen, ...) I'd like it to respond to keyboard
>
> events. I tried overriding - (BOOL)acceptsFirstResponder, -
>
> (BOOL)becomeFirstResponder, and - (BOOL)resignFirstResponder, so that
>
> they return YES, but it doesn't seem to be enough (I only get a beep
>
> when I press a key). I know that if I pass YES to setEditable, the
>
> keyboard events will be parsed, but it will also trigger the drag &
>
> drop feature, and I don't want that.
>
> So, any ideas?
>
>
On my machine, using an NSImageView subclass in a project where this
>
is the
>
only code in the entire project, this works just fine:
>
>
#import "MyImageView.h"
>
@implementation MyImageView
>
- (void)keyDown:(NSEvent *)theEvent {
>
NSLog(@"here"); // this works
>
}
>
@end
>
>
This suggests that the ...FirstResponder stuff is a red herring.
>
Perhaps
>
you've merely forgotten to set the image view in Interface Builder to
>
be
>
your subclass...? m.
>
--
>
matt neuburg, phd = email@hidden, http://www.tidbits.com/matt/
>
pantes anthropoi tou eidenai oregontai phusei
>
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>
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>
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Here come code showing more details:
- (void)keyDown:(NSEvent *)evt {
NSString *keyChar = [evt characters];
if ( [keyChar isEqualToString:@"c"] ) {
[bp removeAllPoints];
[self setNeedsDisplay:YES];
}
}
Peter
>
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