The GLYPHMETRICSFLOAT structure contains information about the placement and orientation of a glyph in a character cell.
typedef struct _GLYPHMETRICSFLOAT { // gmf
FLOAT gmfBlackBoxX;
FLOAT gmfBlackBoxY;
POINTFLOAT gmfptGlyphOrigin;
FLOAT gmfCellIncX;
FLOAT gmfCellIncY;
} GLYPHMETRICSFLOAT;
The values of GLYPHMETRICSFLOAT are specified as notional units.
Windows NT: Use version 3.51 and later.
Windows: Use Windows 95 and later.
Windows CE: Unsupported.
Header: Declared in wingdi.h.
OpenGL on Windows NT and Windows 95 Overview, Structures, POINTFLOAT, wglUseFontOutlines