This is a really dumb question, but, how do I force my single window application to display as the frontmost application and get the event focus from within the application (Objective C)?

-k

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In Cocoa:

[NSApp activateIgnoringOtherApps:YES];

I think this does what you need. If not you can do it with Carbon (see GetCurrentProcess and SetFrontProcess).

I’m not sure what you mean by getting the event focus.

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If you do a SetFrontProcessWithOptions(&psn, kSetFrontProcessFrontWindowOnly); to force only one window, it doesn’t seem to work if NSBorderlessWindowMask is set for the window. It brings two windows to the front instead! (Looks like a bug).

But if you set: styleMask:NSTitledWindowMask|NSTexturedBackgroundWindowMask

It seems to look and work as you would like, and not have a title (despite NSTitledWindowMask being set).