Position Control Attribute
This attribute determines the position of the control on the dialog box. The four fields of the attribute are: left, top, width, and height. Enter the control's width, height, and coordinates of the control's left corner into the Width, Height, X, and Y columns of the Control table. Use installer units for units of length and distance.
All active controls.
This attribute does not use bit flags.
An installer unit is equal to one-twelfth the height of the 10-point MS Sans Serif font size.