Converts from a position in the entry's PangoLayout (returned by gtk_entry_get_layout()) to a position in the entry contents (returned by gtk_entry_get_text()).
byte index into the entry contents
byte index into the entry layout text
See Implementation
Converts from a position in the entry's PangoLayout (returned by gtk_entry_get_layout()) to a position in the entry contents (returned by gtk_entry_get_text()).