Last Visible Item 
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 Last Visible Item

Hi all

How do I get the last visible Item in a ListView???



Sat, 08 Dec 2001 03:00:00 GMT  
 Last Visible Item

Quote:

>Hi all

>How do I get the last visible Item in a ListView???

Fussel,
You'll need to know the Topindex, the Height of the Listbox and
the Height of  a given item.  From there it is simple math and
scaling.  However, I believe the only way to get at the height of
a Listbox listitem is to toss it a LB_GETITEMHEIGHT message .
Neila

Option Explicit

Private Declare Function SendMessage _
                Lib "user32" Alias "SendMessageA" _
                    (ByVal hwnd As Long, _
                    ByVal wMsg As Long, _
                    ByVal wParam As Long, _
                    lParam As Any) _
                As Long

'Determines the height of each entry in the list control in pixels.
Private Const LB_GETITEMHEIGHT = &H1A1

Private Sub cmdTest_Click()
    MsgBox LB_LastVisibleItem(lstTest)
End Sub

Private Sub Form_Load()
Dim strData As String
Dim I As Long
    strData = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    For I = 1 To 26
        lstTest.AddItem "Item: " & Mid$(strData, I, 1)
    Next
End Sub

Private Function LB_LastVisibleItem(LB As ListBox) As Long
    With LB
        LB_LastVisibleItem = .TopIndex + (.Height / GetLBItemHeight(.hwnd) /
Screen.TwipsPerPixelY) - 1
    End With
End Function

'Wrapper for the LB_GETITEMHEIGHT Listbox message
Private Function GetLBItemHeight(LBHwnd As Long) As Long
    GetLBItemHeight = SendMessage(LBHwnd, LB_GETITEMHEIGHT, 0&, 0&)
End Function



Sat, 08 Dec 2001 03:00:00 GMT  
 
 [ 2 post ] 

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