Creating a Modal Dialog or Window in Cocoa Objective-C?

Question

I need to create an modal dialog, which is to loaded from a nib file and should be displayed on a button click in the main window.

I can create a custom window in a nib

Answer 1

Thank you...

(Example). Create a nib with name "About"

if(pAbtCtrl == nil)
        pAbtCtrl = [[AboutWindowController alloc] initWithWindowNibName:@"About"];

pAbtWindow = [pAbtCtrl window];

[NSApp runModalForWindow: pAbtWindow];

[NSApp endSheet: pAbtWindow];

[pAbtWindow orderOut: self];