I made a kind of Form class which asks to
confirm delete or not.
There are two command buttons,
-Yes and No, each returns .t. and .f. in the unload event.
The Class name is YesorNo and I write some code like below,

confirm_box=CreateObject('YesorNo')
confirm_box.show()

And I lost my way to take the returned value(.t. or .f.) from the Object.