GtkCellRendererSpin Renders a spin button in a cell #GtkCellRendererSpin renders text in a cell like #GtkCellRendererText from which it is derived. But while #GtkCellRendererText offers a simple entry to edit the text, #GtkCellRendererSpin offers a #GtkSpinButton widget. Of course, that means that the text has to be parseable as a floating point number. The range of the spinbutton is taken from the adjustment property of the cell renderer, which can be set explicitly or mapped to a column in the tree model, like all properties of cell renders. #GtkCellRendererSpin also has properties for the climb rate and the number of digits to display. Other #GtkSpinButton properties can be set in a handler for the start-editing signal. The #GtkCellRendererSpin cell renderer was added in GTK+ 2.10. #GtkCellRendererText, #GtkSpinButton @Returns: