Argument Type:

DoubleClickData 

Description:

The DoubleClickData.tab property identifies the tab, and the item property identifies the item that has been double-clicked.

You can return two different types from this event:

• bool: If you return True, the double-click will be cancelled and the file will not be opened. If you return False the double-click will be allowed to continue (this is the default).
• string: You can return a string to change the function to be performed on the file. For example, you could return the string "Show" to run the internal Show command on the file.