SCRIPT_VISATTR

SCRIPT_VISATTR structure

Contains the visual (glyph) attributes that identify clusters and justification points, as generated by ScriptShape.

Syntax


typedef struct tag_SCRIPT_VISATTR {
  WORD uJustification  :4;
  WORD fClusterStart  :1;
  WORD fDiacritic  :1;
  WORD fZeroWidth  :1;
  WORD fReserved  :1;
  WORD fShapeReserved  :8;
} SCRIPT_VISATTR;

Members

uJustification

Justification class for the glyph. See SCRIPT_JUSTIFY.

fClusterStart

Value indicating the logical first glyph in every cluster, even for clusters containing just one glyph. Possible values are defined in the following table.

ValueMeaning
TRUE

The glyph is the logical first glyph of the cluster.

FALSE

The glyph is not the logical first glyph of the cluster.

 

fDiacritic

Value indicating if a glyph combines with base characters. Possible values are defined in the following table.

ValueMeaning
TRUE

The glyph does combine with base characters.

FALSE

The glyph does not combine with base characters.

 

fZeroWidth

Value set by the shaping engine to indicate a zero-width character, such as ZWJ and ZWNJ. This value is set for some, but not all, zero-width characters. Possible values are defined in the following table.

ValueMeaning
TRUE

The glyph indicates a zero-width character.

FALSE

The glyph does not indicate a zero-width character.

 

fReserved

Reserved; always initialize to 0.

fShapeReserved

Reserved; for use by shaping engines.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Redistributable

Internet Explorer 5 or later onWindows Me/98/95

Header

Usp10.h

See also

Uniscribe
Uniscribe Structures
ScriptShape
SCRIPT_JUSTIFY

 

 

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