PFMEXTENSION

typedef tagPFMEXTENSION {

WORD dfSizeFields;

DWORD dfExtMetricsOffset;

DWORD dfExtentTable;

DWORD dfOriginTable;

DWORD dfPairKernTable;

DWORD dfTrackKernTable;

DWORD dfDriverInfo;

DWORD dfReserved;

} PFMEXTENSION;

The PFMEXTENSION structure contains extended information for printer fonts.

Members

dfSizeFields

Specifies the size (in bytes) of this structure.

dfExtMetricsOffset

Specifies the byte offset in the file to the EXTTEXTMETRIC structure for the given font.

dfExtentTable

Specifies the byte offset in the file to the extent table. The size of the table is dfLastChar – dfFirstChar + 1 WORD. The extent table contains the unscaled widths (in 1/1000's of an em) of the characters in the font.

dfOriginTable

Specifies the byte offset in the file to the table of character origins. The size of the table is dfLastChar – dfFirstChar + 1 WORD. For screen-font files, this table gives the signed amount of left adjustment to add to the current position before drawing the characters. Negative values indicate left movement; positive values indicate right movement. This should be NULL for PFM files.

dfPairKernTable

Specifies the byte offset in the file to the optional pair-kerning table should be NULL if no kerning pairs are defined for this font. The size of the table is given by the etmKernPairs member of the EXTTEXTMETRIC structure.

dfTrackKernTable

Specifies the byte offset in the file to the optional track-kerning table. This should be NULL if no kerning tracks are defined for this font. The size of the table is given by the etmKernTracks member of the EXTTEXTMETRIC structure.

dfDriverInfo

Specifies the byte offset in the file to additional driver-specific information. Each driver writer is responsible for documenting the format of the data pointed to by this member. These formats will be made public so that third parties that want to create compatible printer font metrics files may do so.

dfReserved

Reserved; must be zero.