Function Reference


_GUICtrlListBox_InitStorage

This message allocates memory for storing items

#include <GuiListBox.au3>
_GUICtrlListBox_InitStorage ( $hWnd, $iItems, $iBytes )

Parameters

$hWnd Control ID/Handle to the control
$iItems The total amount of items that you intend to add
$iBytes The total amount of memory your strings will consume

Return Value

Returns the total number of items for which memory has been pre-allocated.

Related

_GUICtrlListBox_AddFile, _GUICtrlListBox_AddString, _GUICtrlListBox_Dir, _GUICtrlListBox_InsertString

Example

#include <GUIConstantsEx.au3>
#include <GuiListBox.au3>
#include <MsgBoxConstants.au3>

Example()

Func Example()
    Local $idListBox

    ; Create GUI
    GUICreate("List Box Init Storage", 400, 296)
    $idListBox = GUICtrlCreateList("", 2, 2, 396, 296)
    GUISetState(@SW_SHOW)

    ; Add files
    _GUICtrlListBox_BeginUpdate($idListBox)
    _GUICtrlListBox_ResetContent($idListBox)
    MsgBox($MB_SYSTEMMODAL, "Information", "Storage Allocated: " & _GUICtrlListBox_InitStorage($idListBox, 100, 4096))
    _GUICtrlListBox_Dir($idListBox, @WindowsDir & "\win*.exe")
    _GUICtrlListBox_AddFile($idListBox, @WindowsDir & "\notepad.exe")
    _GUICtrlListBox_EndUpdate($idListBox)

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