# FreeType-2.1.8 API Reference

# Header File Macros

## Synopsis

| FT_CONFIG_CONFIG_H |  | FT_TRUETYPE_IDS_H
| FT_CONFIG_STANDARD_LIBRARY_H |  | FT_TRUETYPE_TABLES_H
| FT_CONFIG_OPTIONS_H |  | FT_TRUETYPE_TAGS_H
| FT_CONFIG_MODULES_H |  | FT_BDF_H
| FT_FREETYPE_H |  | FT_GZIP_H
| FT_ERRORS_H |  | FT_LZW_H
| FT_MODULE_ERRORS_H |  | FT_WINFONTS_H
| FT_SYSTEM_H |  | FT_GLYPH_H
| FT_IMAGE_H |  | FT_BBOX_H
| FT_TYPES_H |  | FT_CACHE_H
| FT_LIST_H |  | FT_CACHE_IMAGE_H
| FT_OUTLINE_H |  | FT_CACHE_SMALL_BITMAPS_H
| FT_SIZES_H |  | FT_CACHE_CHARMAP_H
| FT_MODULE_H |  | FT_MAC_H
| FT_RENDER_H |  | FT_MULTIPLE_MASTERS_H
| FT_TYPE1_TABLES_H |  | FT_SFNT_NAMES_H

The following macros are defined to the name of specific FreeType 2 header files. They can be used directly in #include statements as in:

      #include FT_FREETYPE_H
      #include FT_MULTIPLE_MASTERS_H
      #include FT_GLYPH_H

There are several reasons why we are now using macros to name public header files. The first one is that such macros are not limited to the infamous 8.3 naming rule required by DOS (and `FT_MULTIPLE_MASTERS_H' is a lot more meaningful than `ftmm.h').

The second reason is that is allows for more flexibility in the way FreeType 2 is installed on a given system.

#### FT_CONFIG_CONFIG_H

    #ifndef FT_CONFIG_CONFIG_H
    #define FT_CONFIG_CONFIG_H  <freetype/config/ftconfig.h>
    #endif

A macro used in #include statements to name the file containing FreeType 2 configuration data.

#### FT_CONFIG_STANDARD_LIBRARY_H

    #ifndef FT_CONFIG_STANDARD_LIBRARY_H
    #define FT_CONFIG_STANDARD_LIBRARY_H  <freetype/config/ftstdlib.h>
    #endif

A macro used in #include statements to name the file containing FreeType 2 configuration data.

#### FT_CONFIG_OPTIONS_H

    #ifndef FT_CONFIG_OPTIONS_H
    #define FT_CONFIG_OPTIONS_H  <freetype/config/ftoption.h>
    #endif

A macro used in #include statements to name the file containing FreeType 2 project-specific configuration options.

#### FT_CONFIG_MODULES_H

    #ifndef FT_CONFIG_MODULES_H
    #define FT_CONFIG_MODULES_H  <freetype/config/ftmodule.h>
    #endif

      /* public headers */

A macro used in #include statements to name the file containing the list of FreeType 2 modules that are statically linked to new library instances in FT_Init_FreeType.

#### FT_FREETYPE_H

    #define FT_FREETYPE_H  <freetype/freetype.h>

A macro used in #include statements to name the file containing the base FreeType 2 API.

#### FT_ERRORS_H

    #define FT_ERRORS_H  <freetype/fterrors.h>

A macro used in #include statements to name the file containing the list of FreeType 2 error codes (and messages). It is included by FT_FREETYPE_H.

#### FT_MODULE_ERRORS_H

    #define FT_MODULE_ERRORS_H  <freetype/ftmoderr.h>

A macro used in #include statements to name the file containing the list of FreeType 2 module error offsets (and messages).

#### FT_SYSTEM_H

    #define FT_SYSTEM_H  <freetype/ftsystem.h>

A macro used in #include statements to name the file containing the FreeType 2 interface to low-level operations (i.e. memory management and stream i/o). It is included by FT_FREETYPE_H.

#### FT_IMAGE_H

    #define FT_IMAGE_H  <freetype/ftimage.h>

A macro used in #include statements to name the file containing types definitions related to glyph images (i.e. bitmaps, outlines, scan-converter parameters). It is included by FT_FREETYPE_H.

#### FT_TYPES_H

    #define FT_TYPES_H  <freetype/fttypes.h>

A macro used in #include statements to name the file containing the basic data types defined by FreeType 2. It is included by FT_FREETYPE_H.

#### FT_LIST_H

    #define FT_LIST_H  <freetype/ftlist.h>

A macro used in #include statements to name the file containing the list management API of FreeType 2. (Most applications will never need to include this file.)

#### FT_OUTLINE_H

    #define FT_OUTLINE_H  <freetype/ftoutln.h>

A macro used in #include statements to name the file containing the scalable outline management API of FreeType 2.

#### FT_SIZES_H

    #define FT_SIZES_H  <freetype/ftsizes.h>

A macro used in #include statements to name the file containing the API used to manage multiple FT_Size objects per face.

#### FT_MODULE_H

    #define FT_MODULE_H  <freetype/ftmodapi.h>

A macro used in #include statements to name the file containing the module management API of FreeType 2.

#### FT_RENDER_H

    #define FT_RENDER_H  <freetype/ftrender.h>

A macro used in #include statements to name the file containing the renderer module management API of FreeType 2.

#### FT_TYPE1_TABLES_H

    #define FT_TYPE1_TABLES_H  <freetype/t1tables.h>

A macro used in #include statements to name the file containing the types and API specific to the Type 1 format.

#### FT_TRUETYPE_IDS_H

    #define FT_TRUETYPE_IDS_H  <freetype/ttnameid.h>

A macro used in #include statements to name the file containing the enumeration values used to identify name strings, languages, encodings, etc. This file really contains a large set of constant macro definitions, taken from the TrueType and OpenType specifications.

#### FT_TRUETYPE_TABLES_H

    #define FT_TRUETYPE_TABLES_H  <freetype/tttables.h>

A macro used in #include statements to name the file containing the types and API specific to the TrueType (as well as OpenType) format.

#### FT_TRUETYPE_TAGS_H

    #define FT_TRUETYPE_TAGS_H  <freetype/tttags.h>

A macro used in #include statements to name the file containing the definitions of TrueType 4-byte `tags' used to identify blocks in SFNT-based font formats (i.e. TrueType and OpenType).

#### FT_BDF_H

    #define FT_BDF_H  <freetype/ftbdf.h>

A macro used in #include statements to name the file containing the definitions of an API to access BDF-specific strings from a face.

#### FT_GZIP_H

    #define FT_GZIP_H  <freetype/ftgzip.h>

A macro used in #include statements to name the file containing the definitions of an API to support for gzip-compressed files.

#### FT_LZW_H

    #define FT_LZW_H  <freetype/ftlzw.h>

A macro used in #include statements to name the file containing the definitions of an API to support for LZW-compressed files.

#### FT_WINFONTS_H

    #define FT_WINFONTS_H   <freetype/ftwinfnt.h>

A macro used in #include statements to name the file containing the definitions of an API to support Windows .FNT files

#### FT_GLYPH_H

    #define FT_GLYPH_H  <freetype/ftglyph.h>

A macro used in #include statements to name the file containing the API of the optional glyph management component.

#### FT_BBOX_H

    #define FT_BBOX_H  <freetype/ftbbox.h>

A macro used in #include statements to name the file containing the API of the optional exact bounding box computation routines.

#### FT_CACHE_H

    #define FT_CACHE_H  <freetype/ftcache.h>

A macro used in #include statements to name the file containing the API of the optional FreeType 2 cache sub-system.

#### FT_CACHE_IMAGE_H

    #define FT_CACHE_IMAGE_H  FT_CACHE_H

A macro used in #include statements to name the file containing the `glyph image' API of the FreeType 2 cache sub-system.

It is used to define a cache for FT_Glyph elements. You can also see the API defined in FT_CACHE_SMALL_BITMAPS_H if you only need to store small glyph bitmaps, as it will use less memory.

This macro is deprecated. Simply include FT_CACHE_H to have all glyph image-related cache declarations.

#### FT_CACHE_SMALL_BITMAPS_H

    #define FT_CACHE_SMALL_BITMAPS_H  FT_CACHE_H

A macro used in #include statements to name the file containing the `small bitmaps' API of the FreeType 2 cache sub-system.

It is used to define a cache for small glyph bitmaps in a relatively memory-efficient way. You can also use the API defined in FT_CACHE_IMAGE_H if you want to cache arbitrary glyph images, including scalable outlines.

This macro is deprecated. Simply include FT_CACHE_H to have all small bitmaps-related cache declarations.

#### FT_CACHE_CHARMAP_H

    #define FT_CACHE_CHARMAP_H     FT_CACHE_H

A macro used in #include statements to name the file containing the `charmap' API of the FreeType 2 cache sub-system. This macro is deprecated. Simply include FT_CACHE_H to have all charmap-based cache declarations.

#### FT_MAC_H

    #define FT_MAC_H  <freetype/ftmac.h>

A macro used in #include statements to name the file containing the Macintosh-specific FreeType 2 API. The latter is used to access fonts embedded in resource forks. This header file must be explicitly included by client applications compiled on the Mac (note that the base API still works though).

#### FT_MULTIPLE_MASTERS_H

    #define FT_MULTIPLE_MASTERS_H  <freetype/ftmm.h>

A macro used in #include statements to name the file containing the optional multiple-masters management API of FreeType 2.

#### FT_SFNT_NAMES_H

    #define FT_SFNT_NAMES_H  <freetype/ftsnames.h>

A macro used in #include statements to name the file containing the optional FreeType 2 API used to access embedded `name' strings in SFNT-based font formats (i.e. TrueType and OpenType).