# 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.