GtkButtonBox Base class for GtkHButtonBox and GtkVButtonBox The primary purpose of this class is to keep track of the various properties of #GtkHButtonBox and #GtkVButtonBox widgets. gtk_button_box_get_child_size() retrieves the minimum width and height for widgets in a given button box. gtk_button_box_set_child_size() allows those properties to be changed. The internal padding of buttons can be retrieved and changed per button box using gtk_button_box_get_child_ipadding() and gtk_button_box_set_child_ipadding() respectively. gtk_button_box_get_spacing() and gtk_button_box_set_spacing() retrieve and change default number of pixels between buttons, respectively. gtk_button_box_get_layout() and gtk_button_box_set_layout() retrieve and alter the method used to spread the buttons in a button box across the container, respectively. The main purpose of GtkButtonBox is to make sure the children have all the same size. Therefore it ignores the homogeneous property which it inherited from GtkBox, and always behaves as if homogeneous was %TRUE. #GtkVButtonBox Vertical sub-class of #GtkButtonBox. #GtkHButtonBox Horizontal sub-class of #GtkButtonBox. This is a read-only struct; no members should be modified directly. Used internally only. Retrieves how much space a button box is placing between each child button. @b: a #GtkButtonBox @Returns: the current spacing applied to the buttons in @widget. Retrieves the method being used to arrange the buttons in a button box. @widget: a #GtkButtonBox. @Returns: the method used to layout buttons in @widget. Retrieves the current width and height of all child widgets in a button box. @min_width and @min_height are filled with those values, respectively. @widget: a #GtkButtonBox. @min_width: the width of the buttons contained by @widget. @min_height: the height of the buttons contained by @widget. @Deprecated: Use the style properties "child-min-width/-height" instead. Gets the default number of pixels that pad the buttons in a given button box. @widget: a #GtkButtonBox. @ipad_x: the horizontal padding used by buttons in @widget. @ipad_y: the vertical padding used by buttons in @widget. @Deprecated: Use the style properties "child-internal-pad-x/-y" instead. @widget: @child: @Returns: Sets the amount of spacing between buttons in a given button box. @b: a #GtkButtonBox. @s: the number of pixels of spacing. Changes the way buttons are arranged in their container. @widget: a #GtkButtonBox. @layout_style: the new layout style. Sets a new default size for the children of a given button box. @widget: a #GtkButtonBox. @min_width: a default width for buttons in @widget. @min_height: a default height for buttons in @widget. @Deprecated: Use the style properties "child-min-width/-height" instead. Changes the amount of internal padding used by all buttons in a given button box. @widget: a #GtkButtonBox. @ipad_x: the horizontal padding that should be used by each button in @widget. @ipad_y: the vertical padding that should be used by each button in @widget. @Deprecated: Use the style properties "child-internal-pad-x/-y" instead. @widget: @child: @is_secondary: