Sets the GtkSourceGutterDataFunc to use for renderer. This function is used to setup the cell renderer properties for rendering the current cell. Since 2.8
a GtkCellRenderer
the GtkSourceGutterDataFunc to use
the user data for func
the destroy notification for func_data
See Implementation
Sets the GtkSourceGutterDataFunc to use for renderer. This function is used to setup the cell renderer properties for rendering the current cell. Since 2.8