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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


SetListItemHeight - Change the height of items in a ListBox or ComboBox control

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_SETITEMHEIGHT = &H1A0
Const CB_SETITEMHEIGHT = &H153

' Set the height in pixels of each entry in a ListBox or ComboBox control

Sub SetListItemHeight(ctrl As Control, ByVal newHeight As Long)
    Dim uMsg As Long
    If TypeOf ctrl Is ListBox Then
        uMsg = LB_SETITEMHEIGHT
    ElseIf TypeOf ctrl Is ComboBox Then
        uMsg = CB_SETITEMHEIGHT
    Else
        Exit Sub
    End If
    ' (only the low-order word of lParam can be used.)
    SendMessage ctrl.hwnd, uMsg, 0, Byval CLng(newHeight And &HFFFF&)
    ' It is necessary to manually refresh the control.
    ctrl.Refresh
End Sub
Francesco Balena
 
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