Tells the delegate that the window is about to show a sheet at the specified location, giving it the opportunity to return a custom location for the attachment of the sheet to the window.
Original signature is '- (NSRect)window:(NSWindow *)window willPositionSheet:(NSWindow *)sheet usingRect:(NSRect)rect'
Available in Mac OS X v10.3 and later.

C# | Visual Basic | Visual C++ |
public event NSWindow..::..WindowWillPositionSheetUsingRectEventHandler WindowWillPositionSheetUsingRect
Public Event WindowWillPositionSheetUsingRect As NSWindow..::..WindowWillPositionSheetUsingRectEventHandler
public: event NSWindow..::..WindowWillPositionSheetUsingRectEventHandler^ WindowWillPositionSheetUsingRect { void add (NSWindow..::..WindowWillPositionSheetUsingRectEventHandler^ value); void remove (NSWindow..::..WindowWillPositionSheetUsingRectEventHandler^ value); }

The custom location specified.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)