FreeType-2.2.1 API Reference

The TrueType Engine

Synopsis

This section contains a function used to query the level of TrueType bytecode support compiled in this version of the library.

FT_TrueTypeEngineType


  typedef enum
  {
    FT_TRUETYPE_ENGINE_TYPE_NONE = 0,
    FT_TRUETYPE_ENGINE_TYPE_UNPATENTED,
    FT_TRUETYPE_ENGINE_TYPE_PATENTED

  } FT_TrueTypeEngineType;

A list of values describing which kind of TrueType bytecode engine is implemented in a given FT_Library instance. It is used by the FT_Get_TrueType_Engine_Type function.

values

FT_TRUETYPE_ENGINE_TYPE_NONE
	The library doesn't implement any kind of bytecode interpreter.
FT_TRUETYPE_ENGINE_TYPE_UNPATENTED
	The library implements a bytecode interpreter that doesn't support the patented operations of the TrueType virtual machine. Its main use is to load certain Asian fonts which position and scale glyph components with bytecode instructions. It produces bad output for most other fonts.
FT_TRUETYPE_ENGINE_TYPE_PATENTED
	The library implements a bytecode interpreter that covers the full instruction set of the TrueType virtual machine. See the file ‘docs/PATENTS’ for legal aspects.

since

2.2

[Index]

[TOC]

FT_Get_TrueType_Engine_Type


  FT_EXPORT( FT_TrueTypeEngineType )
  FT_Get_TrueType_Engine_Type( FT_Library  library );

Return a FT_TrueTypeEngineType value to indicate which level of the TrueType virtual machine a given library instance supports.

input

library

A library instance.

return

A value indicating which level is supported.

since

2.2

[Index]

[TOC]