1 Introduction

This is a specification of the Windows metafile format (WMF) structure, which can store an image in portable form. The stored image can be rendered by parsing and processing the metafile.

A WMF metafile is a series of variable-length records, called WMF records, that contain graphics drawing commands, object definitions and properties. The metafile begins with a header record, which includes the metafile version, its size, and the number of objects it defines. A WMF metafile is "played back" when its records are converted to a format understood by a specific graphics device.