<summary>
This method obtains the pointer to the reference key of a font file. The pointer is only valid until the object that refers to it is released.
</summary>
<param name="fontFileReferenceKey">Pointer to the font file reference key.
IMPORTANT: The pointer value is valid until the font file reference object it is obtained from is released.</param>
<param name="fontFileReferenceKeySize">Size of font file reference key in bytes.</param>
<returns>
Standard HRESULT error code.
</returns>
<summary> This method obtains the pointer to the reference key of a font file. The pointer is only valid until the object that refers to it is released. </summary> <param name="fontFileReferenceKey">Pointer to the font file reference key. IMPORTANT: The pointer value is valid until the font file reference object it is obtained from is released.</param> <param name="fontFileReferenceKeySize">Size of font file reference key in bytes.</param> <returns> Standard HRESULT error code. </returns>