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Chapter 4 - Font Manager / Summary of the Font Manager

Routines

Initializing the Font Manager

pascal void InitFonts           (void);

Getting Font Information

pascal void GetFontName         (short familyID, Str255 theName);
pascal void GetFNum             (ConstStr255Param name, short *familyID);
pascal Boolean RealFont         (short fontNum, short size);

Using the Current, System, and Application Fonts

pascal short GetDefFontSize     (void);
pascal short GetSysFont         (void);
pascal short GetAppFont         (void);

Getting the Characteristics of a Font

pascal void FontMetrics         (const FMetricRec *theMetrics);
pascal OSErr OutlineMetrics     (short byteCount, const void *textPtr,
                                 Point numer, Point denom, short *yMax,
                                 short *yMin, FixedPtr awArray,
                                 FixedPtr lsbArray, RectPtr boundsArray);

Enabling Fractional Glyph Widths

pascal void SetFractEnable      (Boolean fractEnable);

Disabling Font Scaling

pascal void SetFScaleDisable    (Boolean fscaleDisable);

Favoring Outline Fonts Over Bitmapped Fonts

pascal void SetOutlinePreferred
                                (Boolean outlinePreferred);
pascal Boolean GetOutlinePreferred
                                (void);
pascal Boolean IsOutline        (Point numer, Point denom);

Scaling Outline Fonts

pascal void SetPreserveGlyph
                                (Boolean preserveGlyph);
pascal Boolean GetPreserveGlyph
                                (void);

Accessing Information About a Font

pascal FMOutPtr FMSwapFont      (const FMInput *inRec);

Handling Fonts in Memory

pascal void SetFontLock         (Boolean lockFlag);
pascal OSErr FlushFonts         (void);

Assembly-Language Summary

Trap Macros

Trap Macros

Trap macro name	Trap word
_FMSwapFont	$A901
_FontMetrics	$A835
_GetFNum	$A900
_GetFontName	$A8FF
_InitFonts	$A8FE
_RealFont	$A902
_SetFontLock	$A903
_SetFScaleDisable	$A834

with Trap Words

Trap Macros Requiring Routine Selectors

_FontDispatch

Selector	Routine
$7000	IsOutline
$7001	SetOutlinePreferred
$7008	OutlineMetrics
$7009	GetOutlinePreferred
$700A	SetPreserveGlyph
$700B	GetPreserveGlyph
$700C	FlushFonts

Global Variables

ApFontID	Font ID of application font.
CurFMInput	The current QuickDraw FMInput record for FMSwapFont.
FDevDisable	Disables device-defined extra spacing for styles.
FMDefaultSize	The default point size.
FMgrOutRecc	The current FMOutput record from FMSwapFont.
FONDID	The resource ID of the last font family resource used.
FractEnable	If nonzero, fractional widths are enabled.
FScaleDisable	If nonzero, scaling is disabled.
FScaleHFact	The current horizontal scale factor.
FScaleVFact	The current vertical scale factor.
IntlSpec	International software installed if the value of this is greater than zero.
LastFOND	Handle to last family record used.
LastSPExtra	The most recent value of extra spacing for styles.
ROMFont0	Handle to font record for system font.
SynListHandle	Handle to synthetic font list.
SysFontFam	If nonzero, the font ID to use for the system font.
SysFontSiz	If nonzero, the size of the system font.
UsedFWidths	A flag determining whether fractional widths were used for the most recent font request.
WidthListHand	Handle to a list of handles to recently used width tables (referred to in some places as jFontInfo).
WidthPtr	Pointer to global width table.
WidthTabHandle	Handle to global width table.