Help with pop-up menu/choice button, please.

[Alex Tweedly]

This cannot be as hard as I'm making it ..... so I'll follow the 
excellent advice from the list of not struggling over a simple issue for 
more than an hour and ask for help.    Though I am about 4 hours late 
.... :-(

Easy bit:
I want to have a button, that acts like a pop-up button - i.e. when I 
click on it, up pops a list of choices and I can select one - or I can 
click outside the list of options and get a "cancel" indication back.  
When a choice is made, I do the appropriate action.
This is what I get with a "pop-up menu" selected from the IDE's tool 
palette.

Hard part:
Sometimes, there is only one valid choice; in that case, I'd like to go 
ahead with the appropriate action immediately - don't present a menu, 
just do the action.

I can put in a handler for the mouseDown to the pop-up button - but 
can't find a way to avoid it popping up.

I tried putting in another button, and having its mouseDown take the 
action - either just doing it, or sending mouseDown to the pop-up button 
- but apparently; sending a mouseDown isn't enough to trigger the pop-up.

(I tried a large number of other things, but I'm not going to embarrass 
myself by listing them all ....)

Am I just missing some easy way ?

-- 
Alex Tweedly       http://www.tweedly.net



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