; Return Value(s): Returns TRUE if successfull or FALSE otherwise.
; User CallTip: _GUICtrlTreeViewDeleteItem($h_wnd, $i_treeview[, $h_item = 0]) Removes an item and all its children from a tree-view control. (required: <GuiTreeView.au3>)
; Author(s): Gary Frost (custompcs at charter dot net)
; $h_item - Optional: item ID or item handle (default 0)
; Requirement: None
; Return Value(s): None
; User CallTip: _GUICtrlTreeViewExpand($i_treeview[, $i_expand = 1[, $h_item = 0]]) Expands or collapses the list of child items associated with the specified parent item, if any. (required: <GuiTreeView.au3>)
; Author(s): Holger Kotsch
; Note(s): Completely rewritten (old routine by Gary Frost)
; Return Value(s): Returns the amount of indentation.
; User CallTip: _GUICtrlTreeViewGetIndent($i_treeview) Retrieves the amount, in pixels, that child items are indented relative to their parent items. (required: <GuiTreeView.au3>)
; Author(s): Gary Frost (custompcs at charter dot net)
; $h_item - Optional: item ID/handle to get the state of
; Requirement: None
; Return Value(s): Returns the parent handle
; User CallTip: _GUICtrlTreeViewGetParentHandle($i_treeview) Gets the parent handle of item (selected) in Tree-View control (required: <GuiTreeView.au3>)
; $h_item - Optional: item ID/handle to get the state of
; Requirement: None
; Return Value(s): Returns the parent control ID
; User CallTip: _GUICtrlTreeViewGetParentID($i_treeview) Gets the parent control ID of item (selected) in Tree-View control (required: <GuiTreeView.au3>)
; Author(s): Original by Gary Frost (custompcs at charter dot net)
; User CallTip: _GUICtrlTreeViewGetTree($h_wnd, $i_treeview, $s_sep_char) Get all items text beginning by the current selected item from the Tree-View control (required: <GuiTreeView.au3>)
; $i_indent - Width, in pixels, of the indentation.
; Requirement: None
; Return Value(s): None
; User CallTip: _GUICtrlTreeViewSetIndent($i_treeview, $i_indent) Sets the width of indentation for a tree-view control and redraws the control to reflect the new width. (required: <GuiTreeView.au3>)
; Author(s): Gary Frost (custompcs at charter dot net)
; Note(s): $i_indent
; If this parameter is less than the system-defined minimum width,
; the new width is set to the system-defined minimum.