* @param[out] slot container holding information about the glyph( mImage = 0 indicates not being cached )
*
* @return Whether glyph is cached or not ?
*/
bool IsCached( Text::FontId fontId,
Text::GlyphIndex index,
* @param[out] slot container holding information about the glyph( mImage = 0 indicates not being cached )
*
* @return Whether glyph is cached or not ?
*/
bool IsCached( Text::FontId fontId,
Text::GlyphIndex index,