getFormTop
getFormTop(): Real;
The getFormTop method of the Control class returns the absolute top position of the control on the form in pixels.
If the parent of the control is the form, the getFormLeft method returns the same value as the Window class top property (unless the value of the Window class scaleMode property is not in pixels, in which case it uses the unit of measurement defined by the scale mode; for example, twips or points).