<summary> Finds the font family with the specified family name. </summary> <param name="familyName">Name of the font family. The name is not case-sensitive but must otherwise exactly match a family name in the collection.</param> <param name="index">Receives the zero-based index of the matching font family if the family name was found or UINT_MAX otherwise.</param> <param name="exists">Receives TRUE if the family name exists or FALSE otherwise.</param> <returns> Standard HRESULT error code. If the specified family name does not exist, the return value is S_OK, but *index is UINT_MAX and *exists is FALSE. </returns>
<summary> Creates a font family object given a zero-based font family index. </summary> <param name="index">Zero-based index of the font family.</param> <param name="fontFamily">Receives a pointer the newly created font family object.</param> <returns> Standard HRESULT error code. </returns>
<summary> Gets the number of font families in the collection. </summary>
<summary> Gets the font object that corresponds to the same physical font as the specified font face object. The specified physical font must belong to the font collection. </summary> <param name="fontFace">Font face object that specifies the physical font.</param> <param name="font">Receives a pointer to the newly created font object if successful or NULL otherwise.</param> <returns> Standard HRESULT error code. If the specified physical font is not part of the font collection the return value is DWRITE_E_NOFONT. </returns>
<summary> The IDWriteFontCollection encapsulates a collection of fonts. </summary>