Class DWriteFontFile

The interface that represents a reference to a font file.

Inheritance

object

DXComObject

DWriteFontFile

Implements

IDisposable

Inherited Members

DXComObject.Handle

DXComObject.Dispose()

DXComObject.AddRef()

DXComObject.Release()

DXComObject.QueryInterface(in Guid)

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: JeremyAnsel.DirectX.DWrite

Assembly: JeremyAnsel.DirectX.DWrite.dll

Syntax

[SecurityCritical]
public class DWriteFontFile : DXComObject, IDisposable

Constructors

DWriteFontFile(nint)

Initializes a new instance of the DWriteFontFile class.

Declaration

public DWriteFontFile(nint comPtr)

Parameters

Type	Name	Description
nint	comPtr

Fields

DWriteFontFileGuid

The interface GUID.

Declaration

public static readonly Guid DWriteFontFileGuid

Field Value

Type	Description
Guid

Methods

Analyse(out bool, out DWriteFontFileType, out DWriteFontFaceType, out uint)

Analyzes a file and returns whether it represents a font, and whether the font type is supported by the font system.

Declaration

public void Analyse(out bool isSupportedFontType, out DWriteFontFileType fontFileType, out DWriteFontFaceType fontFaceType, out uint numberOfFaces)

Parameters

Type	Name	Description
bool	isSupportedFontType	TRUE if the font type is supported by the font system, FALSE otherwise.
DWriteFontFileType	fontFileType	The type of the font file. Note that even if isSupportedFontType is FALSE, the fontFileType value may be different from DWRITE_FONT_FILE_TYPE_UNKNOWN.
DWriteFontFaceType	fontFaceType	The type of the font face that can be constructed from the font file. Note that even if isSupportedFontType is FALSE, the fontFaceType value may be different from DWRITE_FONT_FACE_TYPE_UNKNOWN.
uint	numberOfFaces	Number of font faces contained in the font file.

Remarks

IMPORTANT: certain font file types are recognized, but not supported by the font system. For example, the font system will recognize a file as a Type 1 font file, but will not be able to construct a font face object from it. In such situations, Analyze will set isSupportedFontType output parameter to FALSE.

GetReferenceKey()

Gets the reference key of a font file.

Declaration

public byte[] GetReferenceKey()

Returns

Type	Description
byte[]	byte

GetReferenceKey(Span<byte>)

Gets the reference key of a font file.

Declaration

public void GetReferenceKey(Span<byte> key)

Parameters

Type	Name	Description
Span<byte>	key

GetReferenceKeySize()

Gets the reference key size of a font file.

Declaration

public uint GetReferenceKeySize()

Returns

Type	Description
uint

Implements

IDisposable