The vertical dimension (height) of the object, expressed in text rows.
A number (1 to 999)
In Displays, indicates the overall height of the display.
In FormFields, indicates the visual height of the field. Form fields can be more than one row high, allowing for long strings of data to be conveniently displayed in their entirety. For example, a 400-character Remarks form field could be displayed in a 40-column by 10-row space. On the other hand, the form field can contain more data (FieldLen) than can fit in the available visual space.
In Forms, indicates the overall height of the form.
In Windows, indicates the height of the window’s client area.
It is required when either Hght (character rows) or WdgHght (twips) must be specified.