SetTreeViewBackColor – Change the background color of a TreeView control

Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As _    Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As LongDeclare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd _    As Long, ByVal nIndex As Long) As LongDeclare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd _    As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As LongConst GWL_STYLE = -16&Const TVM_SETBKCOLOR = 4381&Const TVS_HASLINES = 2&Sub SetTreeViewBackColor(TV As TreeView, ByVal BackColor As Long)    Dim lStyle As Long    Dim TVNode As node             ' set the BackColor for every node    For Each TVNode In TV.Nodes        TVNode.BackColor = BackColor    Next    ' set the BackColor for the TreeView's window    SendMessage TV.hwnd, TVM_SETBKCOLOR, 0, ByVal BackColor    ' get the current style    lStyle = GetWindowLong(TV.hwnd, GWL_STYLE)    ' temporary hide lines    SetWindowLong TV.hwnd, GWL_STYLE, lStyle And (Not TVS_HASLINES)    ' redraw lines    SetWindowLong TV.hwnd, GWL_STYLE, lStyleEnd Sub

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