Robert wrote:

>Another member suggested offlist that I try err = fn GetControlID( 
>c, ctrlID ) // controld ID in ctrlID.id

Robert,

Command-clicking on fn Handle2Btn reveals its underpinnings:


local fn Handle2Btn( c as ControlRef )
'~'1
dim as ControlID   cID

beginCCode
if ( GetControlID( c, &cID ) ) cID.id = 0;
EndC
end fn = cID.id