Creates a new tree store as with @n_columns columns each of the types passed in. Note that only types derived from standard GObject fundamental types are supported.

As an example,

gtk_tree_store_new (3, G_TYPE_INT, G_TYPE_STRING, GDK_TYPE_TEXTURE);

will create a new Gtk::TreeStore with three columns, of type int, gchararray, and Gdk::Texture respectively.

Initialize a new TreeStore.

Returns the type id (GType) registered in GLib type system.

Appends a new row to @tree_store. If @parent is non-nil, then it will append the new row after the last child of @parent, otherwise it will append a row to the top level. @iter will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call gtk_tree_store_set() or gtk_tree_store_set_value().

Removes all rows from @tree_store

This function is meant primarily for GObjects that inherit from Gtk::TreeStore, and should only be used when constructing a new Gtk::TreeStore. It will not function after a row has been added, or a method on the Gtk::TreeModel interface is called.

Creates a new row at @position. If parent is non-nil, then the row will be made a child of @parent. Otherwise, the row will be created at the toplevel. If @position is -1 or is larger than the number of rows at that level, then the new row will be inserted to the end of the list. @iter will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call gtk_tree_store_set() or gtk_tree_store_set_value().

Inserts a new row after @sibling. If @sibling is nil, then the row will be prepended to @parent ’s children. If @parent and @sibling are nil, then the row will be prepended to the toplevel. If both @sibling and @parent are set, then @parent must be the parent of @sibling. When @sibling is set, @parent is optional.

@iter will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call gtk_tree_store_set() or gtk_tree_store_set_value().

Inserts a new row before @sibling. If @sibling is nil, then the row will be appended to @parent ’s children. If @parent and @sibling are nil, then the row will be appended to the toplevel. If both @sibling and @parent are set, then @parent must be the parent of @sibling. When @sibling is set, @parent is optional.

@iter will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call gtk_tree_store_set() or gtk_tree_store_set_value().

Creates a new row at @position. @iter will be changed to point to this new row. If @position is -1, or larger than the number of rows on the list, then the new row will be appended to the list. The row will be filled with the values given to this function.

Calling gtk_tree_store_insert_with_values (tree_store, iter, position, ...) has the same effect as calling |[ gtk_tree_store_insert (tree_store, iter, position); gtk_tree_store_set (tree_store, iter, ...); ]| with the different that the former will only emit a row_inserted signal, while the latter will emit row_inserted, row_changed and if the tree store is sorted, rows_reordered. Since emitting the rows_reordered signal repeatedly can affect the performance of the program, gtk_tree_store_insert_with_values() should generally be preferred when inserting rows in a sorted tree store.

Returns true if @iter is an ancestor of @descendant. That is, @iter is the parent (or grandparent or great-grandparent) of @descendant.

Returns the depth of @iter. This will be 0 for anything on the root level, 1 for anything down a level, etc.

Checks if the given iter is a valid iter for this Gtk::TreeStore.

This function is slow. Only use it for debugging and/or testing purposes.

Moves @iter in @tree_store to the position after @position. @iter and @position should be in the same level. Note that this function only works with unsorted stores. If @position is nil, @iter will be moved to the start of the level.

Moves @iter in @tree_store to the position before @position. @iter and @position should be in the same level. Note that this function only works with unsorted stores. If @position is nil, @iter will be moved to the end of the level.

Prepends a new row to @tree_store. If @parent is non-nil, then it will prepend the new row before the first child of @parent, otherwise it will prepend a row to the top level. @iter will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call gtk_tree_store_set() or gtk_tree_store_set_value().

Removes @iter from @tree_store. After being removed, @iter is set to the next valid row at that level, or invalidated if it previously pointed to the last one.

Sets the value of one or more cells in the row referenced by @iter. The variable argument list should contain integer column numbers, each column number followed by the value to be set. The list is terminated by a -1. For example, to set column 0 with type %G_TYPE_STRING to “Foo”, you would write gtk_tree_store_set (store, iter, 0, "Foo", -1).

The value will be referenced by the store if it is a %G_TYPE_OBJECT, and it will be copied if it is a %G_TYPE_STRING or %G_TYPE_BOXED.

Sets the data in the cell specified by @iter and @column. The type of @value must be convertible to the type of the column.

Swaps @a and @b in the same level of @tree_store. Note that this function only works with unsorted stores.