The MAT2 structure contains the values for a transformation matrix used by the GetGlyphOutline function.
typedef struct _MAT2 { // mt2 FIXED eM11; FIXED eM12; FIXED eM21; FIXED eM22; } MAT2;
The identity matrix produces a transformation in which the transformed graphical object is identical to the source object. In the identity matrix, the value of eM11 is 1, the value of eM12 is zero, the value of eM21 is zero, and the value of eM22 is 1.