| Parameter | Description | 
|---|---|
| unicode | The unicode value of the character for which to lookup the glyph index. | 
| glyphIndex | The index of the glyph for the given unicode character or the .notdef glyph (index 0) if no glyph is available for the given Unicode value. | 
bool Returns true if the given unicode has a glyph index.
Try to get the glyph index for the character at the given Unicode value.