typedef struct tagABC { /* abc */
int abcA;
UINT abcB;
int abcC;
} ABC;
The ABC structure contains the width of a character in a TrueType font.
abcA
Specifies the “A” spacing of the character. A spacing is the distance to add to the current position before drawing the character glyph.
abcB
Specifies the “B” spacing of the character. B spacing is the width of the drawn portion of the character glyph.
abcC
Specifies the “C” spacing of the character. C spacing is the distance to add to the current position to provide white space to the right of the character glyph.
The total width of a character is the sum of the A, B, and C spaces. Either the A or the C space can be negative, to indicate underhangs or overhangs.