a GdkEvent
widget that received the event
widget-dependent string representation of the event location; e.g. for GtkTreeView, a string representation of GtkTreePath
background area as passed to gtk_cell_renderer_render()
cell area as passed to gtk_cell_renderer_render()
render flags
A new GtkCellEditable for editing this @cell, or %NULL if editing is not possible
Starts editing the contents of this @cell, through a new GtkCellEditable widget created by the GtkCellRendererClass.start_editing virtual function.