IDWriteTextAnalyzer Interface

  • Artikel

Analyzes various text properties for complex script processing such as bidirectional (bidi) support for languages like Arabic, determination of line break opportunities, glyph placement, and number substitution.

Mitglieder

IDWriteTextAnalyzerSchnittstelle erbt von der IUnknown-Schnittstelle. IDWriteTextAnalyzer umfasst auch die folgenden Typen von Mitgliedern:

  • Methoden

Methoden

IDWriteTextAnalyzerSchnittstelle umfasst die folgenden Methoden.

Methode Beschreibung
AnalyzeBidi

Analyzes a text range for script directionality, reading attributes from the source and reporting levels to the sink callback SetBidiLevel.
AnalyzeLineBreakpoints

Analyzes a text range for potential breakpoint opportunities, reading attributes from the source and reporting breakpoint opportunities to the sink callback SetLineBreakpoints.
AnalyzeNumberSubstitution

Analyzes a text range for spans where number substitution is applicable, reading attributes from the source and reporting substitutable ranges to the sink callback SetNumberSubstitution.
AnalyzeScript

Analyzes a text range for script boundaries, reading text attributes from the source and reporting the Unicode script ID to the sink callback SetScript.
GetGdiCompatibleGlyphPlacements

Place glyphs output from the GetGlyphs method according to the font /// and the writing system's rendering rules.
GetGlyphPlacements

Places glyphs output from the GetGlyphs method according to the font and the writing system's rendering rules.
GetGlyphs

Parses the input text string and maps it to the set of glyphs and associated glyph data according to the font and the writing system's rendering rules.

 

Beispiele

The following code example shows how a text analyzer object is created.

    IDWriteTextAnalyzer* pTextAnalyzer = NULL;
    if (SUCCEEDED(hr))
    {
        hr = pDWriteFactory->CreateTextAnalyzer(&pTextAnalyzer);
    }

Anforderungen

Mindestens unterstützter Client

 Windows 7, Windows Vista with SP2 and Platform Update for Windows Vista

Mindestens unterstützter Server

 Windows Server 2008 R2, Windows Server 2008 with SP2 and Platform Update for Windows Server 2008

Header

 Dwrite.h

Bibliothek

 Dwrite.lib

DLL

 Dwrite.dll