Sets the current keyboard focus to be at path, and selects it. This is
useful when you want to focus the user’s attention on a particular item.
If cell is not null, then focus is given to the cell specified by
it. Additionally, if start_editing is true, then editing should be
started in the specified cell.
This function is often followed by `gtk_widget_grab_focus
(icon_view)` in order to give keyboard focus to the widget.
Please note that editing can only happen when the widget is realized.
Sets the current keyboard focus to be at path, and selects it. This is useful when you want to focus the user’s attention on a particular item. If cell is not null, then focus is given to the cell specified by it. Additionally, if start_editing is true, then editing should be started in the specified cell.
This function is often followed by `gtk_widget_grab_focus (icon_view)` in order to give keyboard focus to the widget. Please note that editing can only happen when the widget is realized.