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IDWriteFactory Interface

Used to create all subsequent DirectWrite objects. This interface is the root factory interface for all DirectWrite objects.

Mitglieder

IDWriteFactorySchnittstelle erbt von der IUnknown-Schnittstelle. IDWriteFactory umfasst auch die folgenden Typen von Mitgliedern:

Methoden

IDWriteFactorySchnittstelle umfasst die folgenden Methoden.

MethodeBeschreibung
CreateCustomFontCollection

Creates a font collection, using a custom font collection loader.

CreateCustomFontFileReference

Creates a reference to an application-specific font file resource.

CreateCustomRenderingParams

Creates a rendering-parameters object with the specified properties.

CreateEllipsisTrimmingSign

Creates an inline object for trimming, using an ellipsis as the omission sign.

CreateFontFace

Creates an object that represents a font face.

CreateFontFileReference

Creates a font file reference object from a local font file.

CreateGdiCompatibleTextLayout

Produces an object representing the result of a given string, format, and associated constraints, formatted for a particular display resolution and measuring mode.

CreateGlyphRunAnalysis

Creates a glyph run analysis object, which encapsulates information used to render a glyph run.

CreateMonitorRenderingParams

Creates a rendering-parameters object, with default settings for the specified monitor.

CreateNumberSubstitution

Creates a number-substitution object, using a locale name, substitution method, and whether to ignore user overrides (use NLS defaults for the given culture instead).

CreateRenderingParams

Creates a rendering-parameters object, with default settings for the primary monitor.

CreateTextAnalyzer

Returns an interface with which to perform text analysis.

CreateTextFormat

Creates a text format object used for text layout.

CreateTextLayout

Produces an object that represents the fully analyzed and formatted result of a string, text format, and associated constraints.

CreateTypography

Creates a typography object used in conjunction with text format for text layout.

GetGdiInterop

Creates an object that is used for interoperability with GDI.

GetSystemFontCollection

Gets an object that represents the set of installed fonts.

RegisterFontCollectionLoader

Registers a custom font-collection loader with the factory object.

RegisterFontFileLoader

Registers a font file loader with DirectWrite.

UnregisterFontCollectionLoader

Unregisters a custom font-collection loader that was previously registered using RegisterFontCollectionLoader.

UnregisterFontFileLoader

Unregisters a font file loader that was previously registered with the DirectWrite font system using RegisterFontFileLoader.

 

Hinweise

Create an IDWriteFactory object by using the DWriteCreateFactory function.



if (SUCCEEDED(hr))
{
    hr = DWriteCreateFactory(
        DWRITE_FACTORY_TYPE_SHARED,
        __uuidof(IDWriteFactory),
        reinterpret_cast<IUnknown**>(&pDWriteFactory_)
        );
}



An IDWriteFactory object holds state information, such as font loader registration and cached font data. This state can be shared or isolated. Shared is recommended for most applications because it saves memory. However, isolated can be useful in situations where you want to have a separate state for some objects.

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

 

 

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