[Ghoser777]

Do you know the windows that pop up when you change the volume or monitor brightness with the F1-F4 keys? They don't intercept events - they simply pass through to the window behind them. I'd like to make such windows - does anyone know how? The NSNonactivatingPanelMask for NSPanel sounded promising...

Thanks!

[Wevah]

Check out NSWindow's setIgnoresMouseEvents: method. Also (in some versions of OS X, at least) this only affects click through to Cocoa apps; I overrode setIgnoresMouseEvents: in one of my NSWindow subclasses as follows so click through to Carbon apps worked too:

Code:
- (void)setIgnoresMouseEvents:(BOOL)clickThrough {
    // carbon
    void *ref = [self windowRef];
    if (clickThrough)
        ChangeWindowAttributes(ref, kWindowIgnoreClicksAttribute, kWindowNoAttributes);
    else
        ChangeWindowAttributes(ref, kWindowNoAttributes, kWindowIgnoreClicksAttribute);
    // cocoa
    [super setIgnoresMouseEvents:clickThrough];
}

(Remember to #import <Carbon/Carbon.h> if you do the override like this.)

FWIW, NSNonactivatingPanelMask just allows the panel to recieve keyboard input without activating the application.

[Ghoser777]

Wow, I can't believe I overlooked that method. Thanks!

[Wevah]

No prob.