window:A rectangle in page space that is used to specify a transformation between page and device space.
window extent:The width or height of the window.
window origin:The corner of the window from which the extents are measured. (The window-origin coordinates are specified with respect to the page-space origin.)
window procedure:A function, called by the system, that controls the appearance and behavior of its associated windows. The procedure receives and processes all input (messages) to these windows.
windows metafile:One of two metafile formats, the windows metafile format is the format which was used for applications written for Windows version 3.x. This format consisted of a header, and an array of metafile records.
Windows Time:The number of milliseconds since Windows started running. This time is recorded as a 32-bit value, so it rolls over to zero every 49.7 days.
world coordinate-space:The coordinate space in which all GDI drawing operations begin.