IDWriteFontFile::GetReferenceKey method

Obtains the pointer to the reference key of a font file. The returned pointer is valid until the font file object is released.

Syntax

virtual HRESULT GetReferenceKey(
  [out] const void   ** fontFileReferenceKey,
  [out]       UINT32 * fontFileReferenceKeySize
) = 0;

Parameters

fontFileReferenceKey [out]

Type: const void**

When this method returns, contains an address of a pointer to the font file reference key. Note that the pointer value is only valid until the font file object it is obtained from is released. This parameter is passed uninitialized.

fontFileReferenceKeySize [out]

Type: UINT32*

When this method returns, contains the size of the font file reference key in bytes. This parameter is passed uninitialized.

Return value

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

See also

IDWriteFontFile