Lists all WMF tag identifiers.

Values:

IGMDTAG_ID_WMF_FORMAT	WMF metadata format identifier.
IGMDTAG_ID_WMF_FH_KEY	WMF file magic number.
IGMDTAG_ID_WMF_FH_HANDLE	Metafile HANDLE number (should always be 0).
IGMDTAG_ID_WMF_FH_LEFT	Left coordinate in metafile units.
IGMDTAG_ID_WMF_FH_TOP	Top coordinate in metafile units.
IGMDTAG_ID_WMF_FH_RIGHT	Right coordinate in metafile units.
IGMDTAG_ID_WMF_FH_BOTTOM	Bottom coordinate in metafile units..
IGMDTAG_ID_WMF_FH_INCH	Number of metafile units per inch.
IGMDTAG_ID_WMF_FH_RESERVED	Reserved (should always be 0).
IGMDTAG_ID_WMF_MH_FILE_TYPE	Type of metafile (1=memory, 2=disk).
IGMDTAG_ID_WMF_MH_HEADER_SIZE	Size of header in WORDS (always 9).
IGMDTAG_ID_WMF_MH_VERSION	Version of Microsoft Windows used.
IGMDTAG_ID_WMF_MH_FILE_SIZE	Total size of the metafile in WORDs.
IGMDTAG_ID_WMF_MH_NUM_OBJECTS	Number of objects in the file.
IGMDTAG_ID_WMF_MH_MAX_RECORD_SIZE	The size of largest record in WORDs.
IGMDTAG_ID_WMF_MH_NO_PARAMETERS	Not Used (always 0).