Function Reference


_GUICtrlTreeView_GetPrevVisible

Retrieves the first visible item that precedes the specified item

#include <GuiTreeView.au3>
_GUICtrlTreeView_GetPrevVisible ( $hWnd, $hItem )

Parameters

$hWnd Control ID/Handle to the control
$hItem Handle to the item

Return Value

Success: the handle to the previous visible item.
Failure: 0.

Related

_GUICtrlTreeView_GetNextVisible, _GUICtrlTreeView_GetPrev

Example

#include <GUIConstantsEx.au3>
#include <GuiTreeView.au3>
#include <MsgBoxConstants.au3>
#include <WindowsConstants.au3>

Example()

Func Example()
        GUICreate("TreeView Get Prev Visible (v" & @AutoItVersion & ")", 400, 300)

        Local $iStyle = BitOR($TVS_EDITLABELS, $TVS_HASBUTTONS, $TVS_HASLINES, $TVS_LINESATROOT, $TVS_DISABLEDRAGDROP, $TVS_SHOWSELALWAYS, $TVS_CHECKBOXES)
        Local $idTreeView = GUICtrlCreateTreeView(2, 2, 396, 268, $iStyle, $WS_EX_CLIENTEDGE)
        GUISetState(@SW_SHOW)

        _GUICtrlTreeView_BeginUpdate($idTreeView)
        Local $aidItem[20]
        For $x = 0 To 3
                $aidItem[$x] = GUICtrlCreateTreeViewItem(StringFormat("[%02d] New Item", $x), $idTreeView)
                For $y = 1 To Random(2, 10, 1)
                        GUICtrlCreateTreeViewItem(StringFormat("[%02d] New Child", $y), $aidItem[$x])
                Next
        Next
        $aidItem[4] = GUICtrlCreateTreeViewItem(StringFormat("[%02d] New Item", 4), $idTreeView)
        For $x = 5 To 9
                $aidItem[$x] = GUICtrlCreateTreeViewItem(StringFormat("[%02d] New Item", $x), $idTreeView)
                For $y = 1 To Random(2, 10, 1)
                        GUICtrlCreateTreeViewItem(StringFormat("[%02d] New Child", $y), $aidItem[$x])
                Next
        Next
        For $x = 10 To 19
                $aidItem[$x] = GUICtrlCreateTreeViewItem(StringFormat("[%02d] New Item", $x), $idTreeView)
        Next
        _GUICtrlTreeView_EndUpdate($idTreeView)

        Local $hRandItem = Random(1, 19, 1)
        MsgBox($MB_SYSTEMMODAL, "Information", StringFormat("Index %d, Prev Visible: %s", $hRandItem, _GUICtrlTreeView_GetPrevVisible($idTreeView, $aidItem[$hRandItem])))
        _GUICtrlTreeView_SelectItem($idTreeView, _GUICtrlTreeView_GetPrevVisible($idTreeView, $aidItem[$hRandItem]))

        ; Loop until the user exits.
        Do
        Until GUIGetMsg() = $GUI_EVENT_CLOSE
        GUIDelete()
EndFunc   ;==>Example