Re: [Pyobjc-dev] Passing selectors as parameters

[Ronald O. <ous...@ci...>]

On Monday, May 12, 2003, at 10:01 Europe/Amsterdam, Sean Gilbertson 
wrote:

> Hello all,
>
> 	I have an NSListView whose double-click actions I would like to 
> handle.  NSListView.setDoubleAction_( action ) requires a selector.  
> My problem is that I'm not sure how to pass a method as a selector.  I 
> would like to pass a class "instance" method (i.e. "def 
> didDoubleClick( self ):") that belongs to the class I use as the 
> listview's data source.  What is the correct way to do this?  I have 
> tried a number of ways, and have searched for answers but have found 
> no working solution yet.

You can use MyClass.didDoubleClick_ (e.g. a reference to an unbound 
method, although bound methods also work). Another option is the method 
name as a string ("didDoubleClick_"). You can use 'setTarget_(obj)' to 
set where the message should be send to.

Note that the names of action methods should end with an underscore.

Ronald