IDWriteFactory::UnregisterFontFileLoader Method

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

Syntax

virtual HRESULT UnregisterFontFileLoader(
  IDWriteFontFileLoader * fontFileLoader
) = 0;

Parameter

• fontFileLoader
  Pointer to the file loader that was previously registered with the DirectWrite font system using RegisterFontFileLoader.

Rückgabewert

Ist Methode erfolgreich, wird "S_OK" zurückgegeben. Andernfalls wird ein HRESULT-Fehlercode zurückgegeben.

Hinweise

This function unregisters font file loader callbacks with the DirectWrite font system. You should implement the font file loader interface by a singleton object. Note that font file loader implementations must not register themselves with DirectWrite inside their constructors and must not unregister themselves in their destructors, because registration and unregistraton operations increment and decrement the object reference count respectively. Instead, registration and unregistration of font file loaders with DirectWrite should be performed outside of the font file loader implementation.

Anforderungen

Siehe auch

IDWriteFactory