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Re: a key down event problem
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Re: a key down event problem


  • Subject: Re: a key down event problem
  • From: Christopher Corbell <email@hidden>
  • Date: Tue, 27 May 2003 11:43:10 -0700

On Tuesday, May 27, 2003, at 08:53 AM, Fei Li wrote:

Hello all,
I have a strange problem with key down event.

I have a full screen window which need to receive esc key event to
terminate the application. I use:
- (BOOL)canBecomeKeyWindow
{
return YES;
}

- (BOOL)canBecomeMainWindow
{
return YES;
}

-(void)keyDown:(NSEvent *)theEvent
{
unsigned short theKey;
theKey = [theEvent keyCode];

if (theKey == 53) //ESC key
{
[NSApp terminate:self];
}
}

in my window class. This works fine on MacOSX 10.1, but doesn't work on
MacOSX 10.2. The more strange thing is, on MacOSX 10.2, this also works
fine when I select Build & Run or Run Executable in ProjectBuilder, but
if I run it from finder window, my keyDown function will not be fired
(as I put a NSLog message in keyDown and it doesn't appear in console).

I'm really confused. If anyone have any idea about it?

Thanks for any information!

Fei


Just a hunch, you might try sending an explicit [ makeKeyAndOrderFront]
message to your window when it's shown (in awakeFromNib or someplace
similar). It may be that when you run from ProjectBuilder there's a code path
that does this for you (because of the app context switch), but when you
launch from the Finder the message never happens.

hth,
Christopher
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References: 
 >a key down event problem (From: Fei Li <email@hidden>)

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