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Tip of the Day
Language: VB4/32,VB5,VB6
Expertise: Intermediate
Nov 4, 2000

WEBINAR:

On-Demand

Application Security Testing: An Integral Part of DevOps


GetListItemHeight - Return the height of a ListBox or ComboBox item

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
Const LB_GETITEMHEIGHT = &H1A1
Const CB_GETITEMHEIGHT = &H154

' Return the height of each entry in a ListBox or ComboBox control (in pixels)

Function GetListItemHeight(ctrl As Control) As Long
    Dim uMsg As Long
    If TypeOf ctrl Is ListBox Then
        uMsg = LB_GETITEMHEIGHT
    ElseIf TypeOf ctrl Is ComboBox Then
        uMsg = CB_GETITEMHEIGHT
    Else
        Exit Function
    End If
    GetListItemHeight = SendMessage(ctrl.hwnd, uMsg, 0, ByVal 0&)
End Function
Francesco Balena
 
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