Create an insertmark in a listview

[Markus]

Hi,

I want to create an insertmark using this code:

;create the structure
$a = DllStructCreate("uint cbSize;dword dwFlags;int iItem;dword dwReserved")
;DllStructSetData($a,"cbSize",-1)
DllStructSetData($a,"dwFlags","LVIM_AFTER")
DllStructSetData($a,"iItem",1)
DllStructSetData($a,"dwReserved",0)

;send the message
_SendMessage(GUICtrlGetHandle($mylistview), $LVM_SETINSERTMARK, 0, DllStructGetPtr($a))

MSDN Source for SendMessage

MSDN Source for the DLLStruct

It just doesn't work. Please help me.

Greets

Markus

EDIT: DllStructSetData($a,"cbSize",DllStructGetSize($a)) is the solution

Edited September 27, 2009 by Markus

[smashly]

Hi,

#include <GuiConstantsEx.au3>
#include <GuiListView.au3>
#include <SendMessage.au3>

Global $hGui, $iLV, $iMark, $Msg, $iIndex = 0
$hGui = GUICreate(":-)", 400, 300)
$iLV = GUICtrlCreateListView("Column 1|Column 2", 5, 5, 300, 290)
For $i = 0 To 9
    GUICtrlCreateListViewItem($i & ") Item|Subitem", $iLV)
Next
$iMark = GUICtrlCreateButton("Set Mark", 310, 120, 85, 25)
GUISetState(@SW_SHOW, $hGui)

While 1
    $Msg = GUIGetMsg()
    Switch $Msg
        Case $GUI_EVENT_CLOSE
            Exit
        Case $iMark
            If $iIndex = _GUICtrlListView_GetItemCount($iLV) Then $iIndex = 0
            _LV_InsertMark($iLV, $iIndex)
            $iIndex += 1
    EndSwitch
WEnd

Func _LV_InsertMark($hListView, $iIndex)
    Local $tLVIMARK, $hLV
    $tLVIMARK = DllStructCreate("uint cbSize;dword dwFlags;int iItem;dword dwReserved")
    DllStructSetData($tLVIMARK, "cbSize", DllStructGetSize($tLVIMARK))
    DllStructSetData($tLVIMARK, "dwFlags", $LVIM_AFTER)
    DllStructSetData($tLVIMARK, "iItem", $iIndex)
    DllStructSetData($tLVIMARK, "dwReserved", 0)
    $hLV = $hListView
    If Not IsHWnd($hLV) Then $hLV = GUICtrlGetHandle($hListView)
    _SendMessage($hLV, $LVM_SETINSERTMARK, 0, DllStructGetPtr($tLVIMARK))
EndFunc   ;==>_LV_InsertMark

Cheers

Edited September 28, 2009 by smashly