Moves the iterator to the preceding cluster in the glyph item. See #PangoGlyphItemIter for details of cluster orders.
Return: %TRUE if the iterator was moved, %FALSE if we were already on the first cluster.
1.22
See Implementation
Moves the iterator to the preceding cluster in the glyph item. See #PangoGlyphItemIter for details of cluster orders.
Return: %TRUE if the iterator was moved, %FALSE if we were already on the first cluster.