Coordinate space

The print preview works in the anisotropic mode and uses its own coordinate system. Logical coordinates are always being mapped to the physical, either printer's or screen's.

Gray dots in the picture are physical printer's or screen's dots. The user's page is described by COREPREVIEW_PAGESIZE structure (drawn in blue).

One logical unit is one hundredth of millimeter (0.01 mm). The X axis goes from the left to the right, the Y axis goes from the top to the bottom of the page.