Implement this method to customize the Open panel shown by a pop-up–style path.
Original signature is '- (void)pathControl:(NSPathControl *)pathControl willDisplayOpenPanel:(NSOpenPanel *)openPanel'
Available in Mac OS X v10.5 and later.

C# | Visual Basic | Visual C++ |
public delegate void PathControlWillDisplayOpenPanelEventHandler( NSPathControl pathControl, NSOpenPanel openPanel )
Public Delegate Sub PathControlWillDisplayOpenPanelEventHandler ( _ pathControl As NSPathControl, _ openPanel As NSOpenPanel _ )
public delegate void PathControlWillDisplayOpenPanelEventHandler( NSPathControl^ pathControl, NSOpenPanel^ openPanel )

- pathControl (NSPathControl)
- The path control displaying the Open panel.
- openPanel (NSOpenPanel)
- The Open panel to be displayed.

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