The window defined in the following example is a primary window; its origin is specified using dynamic values, and its width and height are specified as percentages of its coverpage window.

:h1 res=001
    x=left y=bottom width=50% height=100%
    group=1.Primary Window

For now, ignore "group=1." We will explain it later.

The most practical values to use for window size and position are a combination of relative and dynamic values. Then, if the user resizes the coverpage window, IPF automatically resizes and repositions the windows relative to the new size and position of the coverpage window. If you use absolute values, the window might be clipped when the user resizes the coverpage window.

When defining window position and size, you cannot mix absolute values with dynamic or relative values for either of the following combinations of attributes:

x= and width=
y= and height=

If no values for x and y are specified, the origin of the window is 0,0. If you specify an origin other than 0,0, you also must specify width and height values. Negative values for these attributes are not allowed.