GtkBox a base class for box containers GtkBox is an abstract widget which encapsulates functionallity for a particular kind of container, one that organizes a variable number of widgets into a rectangular area. GtkBox currently has two derived classes, #GtkHBox and #GtkVBox. The rectangular area of a GtkBox is organized into either a single row or a single column of child widgets depending upon whether the box is of type #GtkHBox or #GtkVBox, respectively. Thus, all children of a GtkBox are allocated one dimension in common, which is the height of a row, or the width of a column. GtkBox uses a notion of packing. Packing refers to adding widgets with reference to a particular position in a #GtkContainer. For a GtkBox, there are two reference positions: the start and the end of the box. For a #GtkVBox, the start is defined as the top of the box and the end is defined as the bottom. For a #GtkHBox the start is defined as the left side and the end is defined as the right side. Use repeated calls to gtk_box_pack_start() to pack widgets into a GtkBox from start to end. Use gtk_box_pack_end() to add widgets from end to start. You may intersperse these calls and add widgets from both ends of the same GtkBox. Use gtk_box_pack_start_defaults() or gtk_box_pack_end_defaults() to pack widgets into a GtkBox if you do not need to specify the expand, fill, or padding attributes of the child to be added. Because GtkBox is a #GtkContainer, you may also use gtk_container_add() to insert widgets into the box, and they will be packed as if with gtk_box_pack_start_defaults(). Use gtk_container_remove() to remove widgets from the GtkBox. Use gtk_box_set_homogeneous() to specify whether or not all children of the GtkBox are forced to get the same amount of space. Use gtk_box_set_spacing() to determine how much space will be minimally placed between all children in the GtkBox. Use gtk_box_reorder_child() to move a GtkBox child to a different place in the box. Use gtk_box_set_child_packing() to reset the expand, fill, and padding attributes of any GtkBox child. Use gtk_box_query_child_packing() to query these fields. #GtkHBox a derived class that organizes widgets into a row. #GtkVBox a derived class that organizes widgets into a column. #GtkFrame a #GtkWidget useful for drawing a border around a GtkBox. #GtkTable a #GtkContainer for organizing widgets into a grid, rather than independent rows or columns. #GtkLayout a #GtkContainer for organizing widgets into arbitrary layouts. The #GtkBox-struct describes an instance of GtkBox and contains the following fields. (These fields should be considered read-only. They should never be set by an application.) #GList * children; a list of children belonging the GtkBox. The data is a list of structures of type #GtkBoxChild-struct. #gint16 spacing; the number of pixels to put between children of the GtkBox, zero by default. Use gtk_box_set_spacing() to set this field. #guint homogeneous; a flag that if %TRUE forces all children to get equal space in the GtkBox; %FALSE by default. Use gtk_box_set_homogeneous() to set this field. The #GtkBoxChild-struct holds a child widget of GtkBox and describes how the child is to be packed into the GtkBox. Use gtk_box_query_child_packing() and gtk_box_set_child_packing() to query and reset the padding, expand, fill, and pack fields. #GtkBoxChild-struct contains the following fields. (These fields should be considered read-only. They should never be directly set by an application.) #GtkWidget * widget; the child widget, packed into the GtkBox. #guint16 padding; the number of extra pixels to put between this child and its neighbors, set when packed, zero by default. #guint expand; flag indicates whether extra space should be given to this child. Any extra space given to the parent GtkBox is divided up among all children with this attribute set to %TRUE; set when packed, %TRUE by default. #guint fill; flag indicates whether any extra space given to this child due to its expand attribute being set is actually allocated to the child, rather than being used as padding around the widget; set when packed, %TRUE by default. #guint pack; one of #GtkPackType indicating whether the child is packed with reference to the start (top/left) or end (bottom/right) of the GtkBox. @widget: @padding: @expand: @fill: @pack: @is_secondary: Adds @child to @box, packed with reference to the start of @box. The @child is packed after any other child packed with reference to the start of @box. @box: a #GtkBox. @child: the #GtkWidget to be added to @box. @expand: %TRUE if the new child is to be given extra space allocated to @box. The extra space will be divided evenly between all children of @box that use this option. @fill: %TRUE if space given to @child by the @expand option is actually allocated to @child, rather than just padding it. This parameter has no effect if @expand is set to %FALSE. A child is always allocated the full height of a #GtkHBox and the full width of a #GtkVBox. This option affects the other dimension. @padding: extra space in pixels to put between this child and its neighbors, over and above the global amount specified by spacing in #GtkBox-struct. If @child is a widget at one of the reference ends of @box, then @padding pixels are also put between @child and the reference edge of @box. Adds @child to @box, packed with reference to the end of @box. The @child is packed after (away from end of) any other child packed with reference to the end of @box. @box: a #GtkBox. @child: the #GtkWidget to be added to @box. @expand: %TRUE if the new child is to be given extra space allocated to @box. The extra space will be divided evenly between all children of @box that use this option. @fill: %TRUE if space given to @child by the @expand option is actually allocated to @child, rather than just padding it. This parameter has no effect if @expand is set to %FALSE. A child is always allocated the full height of a #GtkHBox and the full width of a #GtkVBox. This option affects the other dimension. @padding: extra space in pixels to put between this child and its neighbors, over and above the global amount specified by spacing in #GtkBox-struct. If @child is a widget at one of the reference ends of @box, then @padding pixels are also put between @child and the reference edge of @box. Adds @widget to @box, packed with reference to the start of @box. The child is packed after any other child packed with reference to the start of @box. Parameters for how to pack the child @widget, expand, fill, and padding in #GtkBoxChild-struct, are given their default values, %TRUE, %TRUE, and 0, respectively. @box: a #GtkBox. @widget: the #GtkWidget to be added to @box. Adds @widget to @box, packed with reference to the end of @box. The child is packed after (away from end of) any other child packed with reference to the end of @box. Parameters for how to pack the child @widget, expand, fill, and padding in #GtkBoxChild-struct, are given their default values, %TRUE, %TRUE, and 0, respectively. @box: a #GtkBox. @widget: the #GtkWidget to be added to @box. @box: @Returns: Sets the homogeneous field of #GtkBox-struct, controlling whether or not all children of @box are given equal space in the box. @box: a #GtkBox. @homogeneous: a boolean value, %TRUE to create equal allotments, %FALSE for variable allotments. @box: @Returns: Sets the spacing field of #GtkBox-struct, which is the number of pixels to place between children of @box. @box: a #GtkBox. @spacing: the number of pixels to put between children. Moves @child to a new @position in the list of @box children. The list is the children field of #GtkBox-struct, and contains both widgets packed #GTK_PACK_START as well as widgets packed #GTK_PACK_END, in the order that these widgets were added to @box. A widget's position in the @box children list determines where the widget is packed into @box. A child widget at some position in the list will be packed just after all other widgets of the same packing type that appear earlier in the list. @box: a #GtkBox. @child: the #GtkWidget to move. @position: the new position for @child in the children list of #GtkBox-struct, starting from 0. If negative, indicates the end of the list. Returns information about how @child is packed into @box. @box: a #GtkBox. @child: the #GtkWidget of the child to query. @expand: the returned value of the expand field in #GtkBoxChild-struct. @fill: the returned value of the fill field in #GtkBoxChild-struct. @padding: the returned value of the padding field in #GtkBoxChild-struct. @pack_type: the returned value of the pack field in #GtkBoxChild-struct. Sets the way @child is packed into @box. @box: a #GtkBox. @child: the #GtkWidget of the child to set. @expand: the new value of the expand field in #GtkBoxChild-struct. @fill: the new value of the fill field in #GtkBoxChild-struct. @padding: the new value of the padding field in #GtkBoxChild-struct. @pack_type: the new value of the pack field in #GtkBoxChild-struct.