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
 
Private Function HListScroll7913Add(ListX As ListBox) As Boolean
On Error GoTo Err:
Dim X As Long
Dim new_len As Long
Dim max_len As Long
    HListScrollAdd7913 = True
    For X = 0 To ListX.ListCount - 1
        new_len = 10 + ScaleX(TextWidth(ListX.List(X)), ScaleMode, vbPixels)
        If max_len < new_len Then max_len = new_len
    Next
    SendMessage ListX.hwnd, &H194, max_len, 0
Err:
    HListScrollAdd7913 = False
End Function