VB中如何修改treeview的背景色

改变 TreeView 的背景

Private Declare Function SendMessage Lib "User32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam

As Long, lParam As Long) As Long

Private Declare Function GetWindowLong Lib "User32" Alias "GetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long) As Long

Private Declare Function SetWindowLong Lib "User32" Alias "SetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long, ByVal

dwNewLong As Long) As Long

Private Const GWL_STYLE = -16&

Private Const TVM_SETBKCOLOR = 4381&

Private Const TVM_GETBKCOLOR = 4383&

Private Const TVS_HASLINES = 2&

Dim frmlastForm As Form

Private Sub Form_Load()

Dim nodX As Node

Set nodX = TreeView1.Nodes.Add(, , "R", "Root")

Set nodX = TreeView1.Nodes.Add("R", tvwChild, "C1", "Child 1")

Set nodX = TreeView1.Nodes.Add("R", tvwChild, "C2", "Child 2")

Set nodX = TreeView1.Nodes.Add("R", tvwChild, "C3", "Child 3")

Set nodX = TreeView1.Nodes.Add("R", tvwChild, "C4", "Child 4")

nodX.EnsureVisible

TreeView1.style = tvwTreelinesText ' Style 4.

TreeView1.BorderStyle = vbFixedSingle

End Sub

Private Sub Command1_Click()

Dim lngStyle As Long

Call SendMessage(TreeView1.hWnd, TVM_SETBKCOLOR, 0, ByVal RGB(255, 0, 0))

'改变背景到红色

lngStyle = GetWindowLong(TreeView1.hWnd, GWL_STYLE)

Call SetWindowLong(TreeView1.hWnd, GWL_STYLE, lngStyle - TVS_HASLINES)

Call SetWindowLong(TreeView1.hWnd, GWL_STYLE, lngStyle)

End Sub

Option Explicit

Private Declare Function SendMessage Lib "User32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Long) As Long

Private Declare Function GetWindowLong Lib "User32" Alias "GetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long) As Long

Private Declare Function SetWindowLong Lib "User32" Alias "SetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long

Private Const GWL_STYLE = -16&

Private Const TVM_SETBKCOLOR = 4381&

Private Const TVM_GETBKCOLOR = 4383&

Private Const TVS_HASLINES = 2&

Private Sub Form_Load()

Dim nodex As Node

Dim i As Integer

Dim lStyle As Long

Call SendMessage(TreeView1.hWnd, TVM_SETBKCOLOR, 0, ByVal RGB(255, 0, 0))

lStyle = GetWindowLong(TreeView1.hWnd, GWL_STYLE)

Call SetWindowLong(TreeView1.hWnd, GWL_STYLE, lStyle - TVS_HASLINES)

Call SetWindowLong(TreeView1.hWnd, GWL_STYLE, lStyle)

TreeView1.Style = tvwTreelinesPlusMinusPictureText

TreeView1.BorderStyle = ccFixedSingle

With TreeView1.Nodes

Set nodex = .Add(, , "R", "Root")

nodex.BackColor = RGB(255, 0, 0)

For i = 1 To 10

Set nodex = .Add("R", tvwChild, "C" & i, "Child " & i)

nodex.BackColor = RGB(255, 0, 0)

nodex.EnsureVisible

Next

End With

End Sub