Question

I’m making a new Mac OS X application. (not an iPhone app)
This is document-based application.

It shows a new “Untitled” document instance automatically when it starts up. How can I block this behavior? I wish my application show no window at start up.

Answer 1

Apple Doc, Document Based application overview – FAQ:

How can I keep my application from
creating an untitled document at
launch?

Implementing the
applicationShouldOpenUntitledFile:
method to return NO in your
application delegate prevents the
application from opening an untitled
file when launched or activated. If
you do want to open an untitled file
when launched, but don’t want to open
an untitled file when already running
and activated from the dock, you can
instead implement
applicationShouldHandleReopen:hasVisibleWindows:
to return NO