hiGetFormSize

hiGetFormSize(
r_form
)
=> l_width_height / 0:0

Returns the width and height of the given form.

r_form

Handle to the form, which is returned by hiCreateAppForm.

l_width_height	Returns form `width:height` if instantiated form is valid.
`0:0`	Returns `0:0` if form is not instantiated, or it is not a form that has been passed in.