I've seen that before but forgot how to do it.

I want to call a method of the active form from the menu.
If the form is opened there is no problem.
How do I check any form is active to avoid an error?

I want to do something like
IF(WEXIST(_SCREEN.ActiveForm))
_SCREEN.ActiveForm.myMethod()
ENDIF

but I get is not an object error message.

Thank you.