I need to show a window (without title bar) above third party applications without my window taking focus.
I have tried using an NSPanel
and setting enabling non-activating, but that didn't help.
I tried orderFront:self
, but that didn't help either.
I always needed to add [NSApp activateIgnoringOtherApps:YES];
because the window wouldn't show otherwise.
I have here a sample project for just this functionality:
http://users.telenet.be/prullen/TopW2.zip
UIElement
is set to true
in the application's plist file, so there is no dock. You can activate the window by pressing ALT + SPACE
at the same time. You will see that the app below it looses focus. Any thoughts on how to fix this? I've seen other apps do it so I know it's possible.
Edit: here's the code so far. Remember the window is a non-activating NSPanel.
I still need that last NSApp activateIgnoringOtherApps
line or otherwise it doesn't display. But of course that makes the window the active one.
_windowController = [[MyWindowController alloc] initWithWindowNibName:@"MyWindowController"];
[[_windowController window] setLevel:NSNormalWindowLevel+1];
[[_windowController window] orderFrontRegardless];
[_windowController showWindow:self];
[NSApp activateIgnoringOtherApps:YES];
I've also subclassed NSPanel and added two methods:
- (BOOL)canBecomeKeyWindow
{
return YES;
}
- (BOOL)canBecomeMainWindow
{
return YES;
}
Edit: OK, unchecking setHidesOnDeactivate fixes this, but now the window will never hide. I need it to hide when the user presses the app below it or switches to another app.
Edit 2: OK, this seems to fix the above issue:
- (void)awakeFromNib
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(hideWindow) name:NSWindowDidResignKeyNotification object:nil];
}
- (void)hideWindow {
[self setHidesOnDeactivate:YES];
}
Not sure if there's a better way.
And for those that want to know how to display the window:
[[_windowController window] setLevel:NSPopUpMenuWindowLevel];
[[_windowController window] orderFrontRegardless];
[[_windowController window] makeKeyWindow];
[_windowController showWindow:self];