_GUICtrlListView_ScrollToItem($hListView, $item)

[mLipok]

This function no need to describe

but maybe be helpfull for somebody

Func _GUICtrlListView_ScrollToItem($hListView, $item) ; $item : zero based ListViewItem
$item_to_scroll = $item
If $item_to_scroll >= 0 Then $item_to_scroll -= 1
$aRect = _GUICtrlListView_GetItemRect($hListView, $item_to_scroll, 3)
$v_iDY = $aRect[1] - 1
If $item <= 0 Then $v_iDY -= 16
_GUICtrlListView_Scroll($hListView, 0, $v_iDY)
EndFunc ;==>_GUICtrlListView_ScrollToItem

Edited December 1, 2012 by mlipok

[guinness]

Would you mind posting an example of its usage?

[BrewManNH]

If you use this style ($LVS_SHOWSELALWAYS) setting when you create the listview, all you need to do is use_GUICtrlListView_SetItemSelected and it will automatically scroll to the selected item wherever it is in the LV.

[mLipok]

an example

expandcollapse popup

#include 
#include 

$Debug_LV = False ; Check ClassName being passed to ListView functions, set to True and use a handle to another control to see it work

_Main()

Func _Main()
Local $hListView

GUICreate("ListView Scroll", 400, 300)
$hListView = GUICtrlCreateListView("", 2, 2, 394, 268)
GUISetState()

; Add column
_GUICtrlListView_AddColumn($hListView, "Items", 100)

; Add items
_GUICtrlListView_BeginUpdate($hListView)
For $iI = 1 To 1000
_GUICtrlListView_AddItem($hListView, "Item " & $iI - 1)
Next
_GUICtrlListView_EndUpdate($hListView)

; Scroll control 500 pixels
Sleep(5000)
_GUICtrlListView_ScrollToItem($hListView, 0)
Sleep(2000)
_GUICtrlListView_ScrollToItem($hListView, 1)
Sleep(2000)
_GUICtrlListView_ScrollToItem($hListView, 2)
Sleep(2000)
_GUICtrlListView_ScrollToItem($hListView, 9)
Sleep(2000)
_GUICtrlListView_ScrollToItem($hListView, 99)
Sleep(2000)
_GUICtrlListView_ScrollToItem($hListView, 499)
Sleep(2000)
_GUICtrlListView_ScrollToItem($hListView, 99)
Sleep(2000)
_GUICtrlListView_ScrollToItem($hListView, 9)
Sleep(2000)
_GUICtrlListView_ScrollToItem($hListView, 5)
Sleep(2000)
_GUICtrlListView_ScrollToItem($hListView, 4)
Sleep(2000)
_GUICtrlListView_ScrollToItem($hListView, 3)
Sleep(2000)
_GUICtrlListView_ScrollToItem($hListView, 2)
Sleep(2000)
_GUICtrlListView_ScrollToItem($hListView, 1)
Sleep(2000)
_GUICtrlListView_ScrollToItem($hListView, 0)
Sleep(2000)

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

Func _GUICtrlListView_ScrollToItem($hListView, $item) ; $item : zero based ListViewItem
$item_to_scroll = $item
If $item_to_scroll >= 0 Then $item_to_scroll -= 1
$aRect = _GUICtrlListView_GetItemRect($hListView, $item_to_scroll, 3)
ConsoleWrite('$item: ' & $item & ' =============================' & @CRLF)
ConsoleWrite($aRect[0] & @CRLF)
ConsoleWrite($aRect[1] & @CRLF)
ConsoleWrite($aRect[2] & @CRLF)
ConsoleWrite($aRect[3] & @CRLF)
$V_iDY = $aRect[1] - 1
If $item <= 0 Then $V_iDY -= 12
_GUICtrlListView_Scroll($hListView, 1, $V_iDY)
EndFunc ;==>_GUICtrlListView_ScrollToItem

[mLipok]

thanks BrewManNH

I dont know about that ($LVS_SHOWSELALWAYS) to this time.

But i guess my function can be helpful with ListView which is not created by my own script but ListView which is created by other program which somebody want to control.

Edited December 2, 2012 by mlipok

[guinness]

Thanks. My advise post a link in the original post just in case.

[MrCreatoR]

Nice, but we have also _GUICtrlListView_EnsureVisible