The Enhanced MetaFile format (EMF) is the native vector graphics file format on Windows. Qt is a cross-platform application development framework, widely used for the development of GUI programs. Although it provides tools for almost every aspect of software development, Qt doesn t include a straightforward solution for the export of 2D graphics to the EMF format. EmfEngine covers this lack and enables Qt based applications to easily export graphics created using the QPainter class to the Enhanced Metafile format. It is built on top of the QPaintEngine class, which provides an abstract definition of how QPainter draws to a given device on a given platform. -The　Enhanced MetaFile format (EMF) is the native vector graphics file format on Windows. Qt is a cross-platform application development framework, widely used for the development of GUI programs. Although it provides tools for almost every aspect of software development, Qt doesn t include a straightforward solution for the export of 2D graphics to the EMF format. EmfEngine covers this lack and enables Qt based applications to easily export graphics created using the QPainter class to the Enhanced Metafile format. It is built on top of the QPaintEngine class, which provides an abstract definition of how QPainter draws to a given device on a given platform.