The EMR structure provides the base structure for all enhanced metafile records. An enhanced metafile record contains the parameters for a specific GDI function used to create part of a picture in an enhanced format metafile.
typedef struct tagEMR
{
DWORD iType;
DWORD nSize;
} EMR, *PEMR;
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in wingdi.h.
Metafiles Overview, Enhanced Metafile Structures