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Chapter 4 - Font Manager / Font Manager Reference

Data Structures

The Font Input Record

The font input record, of data type FMInput, is used by QuickDraw to request a font from the Font Manager, as described in the section "How QuickDraw Requests a Font" on page 4-16. You can also use this data type to request a font with the FMSwapFont function, which is described on page 4-60.

TYPE FMInput =
PACKED RECORD
   family:     Integer;    {font family ID}
   size:       Integer;    {requested point size}
   face:       Style;      {requested font style}
   needBits:   Boolean;    {if bitmaps need to be constructed}
   device:     Integer;    {device driver ID}
   numer:      Point;      {scaling factor numerators}
   denom:      Point;      {scaling factor denominators}
END;

Field Description

family

The font family ID of the requested font.

size

The point size of the requested font.

face

The requested font style. The defined QuickDraw styles are bold, italic, underline, outline, shadow, condense, and extend.

needBits

Indicates whether QuickDraw draws the glyphs. If QuickDraw does not draw the glyphs, as is the case for measurement routines such as MeasureText, then the glyph bitmaps do not have to be read or constructed. If QuickDraw draws the glyphs and the font is contained in a bitmapped font resource, all of the information describing the font, including the bit image, is read into memory.

device

The high-order byte contains the device driver reference number. The low-order byte is reserved.

numer

The numerators of the vertical and horizontal scaling factors. (For more information about font scaling, see "How the Font Manager Scales Fonts" on page 4-19.) The numer field is of type Point and contains two integers: the first is the numerator of the ratio for vertical scaling and the second is the numerator of the ratio for horizontal scaling.

denom

The denominators of the vertical and horizontal scaling factors. (For more information about font scaling, see "How the Font Manager Scales Fonts" on page 4-19.) The denom field is of type Point and contains two integers: the first is the denominator of the ratio for vertical scaling and the second is the denominator of the ratio for horizontal scaling.