# Method GTK2.Style()->paint_expander()

Method paint_expander

  `GTK2.Style paint_expander(GTK2.Widget window, int state, GTK2.GdkRectangle rect, GTK2.Widget widget, string detail, int x, int y, int style)`

Description

  Draws an expander as used in GTK2.TreeView. x and y specify the center of the expander. The size of the expander is determined by the "expander-size" style property of widget. (If widget is 0 or doesn't have an "expander-size" property, an unspecified default size will be used, since the caller doesn't have sufficient information to position the expander, this is likely not useful.) The expander is expander_size pixels tall in the collapsed position and expander_size pixels wide in the expanded position.