The following information is provided as is, and the authors take no responsibility for the correctness.
With GDI+, Microsoft released a new metafile format called EMF+. EMF+ metafiles are much friendlier to GDI+ operations, and would be very handy things to have around, except for one fact: they didn't release any documentation on the format of EMF+ metafile records, making it impossible for developers to manipulate them.
| Microsoft has released official documentation about this format in connection to the Open Protocol Specifications.
[MS-EMFPLUS]: Enhanced Metafile Format Plus Extensions Specification
You can find information about the EMF+ format on the following site: