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.