A number which represents a physical dimension of an item on the screen, in units of 0.01 millimeter.
Long
Specifies that each logical unit is converted to 0.01 millimeter.
AHiMetric is the scale mode that specifies physical sizes. For example, the number of AHiMetric units in a line of 10 centimeters is 10,000. The resulting line drawn on the screen is ten centimeters long, regardless of the size of the video display area. For information on the AHiMetric scale mode and physical sizes, see the Microsoft Windows SDK.