On Wed, Dec 10, 2008 at 12:43 PM, Eric Gorr <[EMAIL PROTECTED]> wrote: > One way to check to see if the enter key has been pressed is to: > > [theEvent keyCode] == 0x04C > > where 0x04C is the keyCode corresponding to the enter key. > (Is there an Apple defined constant for this key code?) > > > > Another way, found at: > > http://developer.apple.com/samplecode/TrackBall/listing9.html > > is to do: > > NSString *characters = [theEvent characters]; > > switch ([characters characterAtIndex:0]) > { > case NSEnterCharacter: > case NSNewlineCharacter: > case NSCarriageReturnCharacter: > } > > > > My question is which method is the preferred or recommended way to detect > this key in onKeyDown? > > Is there a better way?
It really depends on whether you want to detect the physical key or the logical key. Input methods may conceivably change the mapping from one to the other and how you want to check will depend on how you want your program's behavior to change in that situation. Most of the time you'll want to use the second technique. Also note that if you use the second technique, you must check that [characters length] > 0 before you grab character 0. It is entirely legal for an NSEvent's characters to be empty, and you don't want to throw an exception because of that. Mike _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
