This property returns and sets the height of controls.
object.Height [= number]
The Height property is measured from the center of the control's border so that controls with different border widths align correctly. The property uses the scale units of a control’s container.
For Form and Screen objects, this property is always measured in twips. For a form or control, the values for this property changes as the object is sized by a user or by your code. Maximum limits of this property for all objects is system-dependent.
Use the Height, Width, Left, and Top properties for operations or calculations based on an object's total area, such as sizing or moving the object. Use the ScaleLeft, ScaleTop, ScaleHeight, and ScaleWidth properties for operations or calculations based on an object's internal area, such as drawing or moving objects within another object.
The Height property cannot be changed for the DriveListBox control or for the ComboBox control, whose Style property setting is 0 (drop-down combo box) or 2 (drop-down list box).