钩入VBE窗口的子类SysTreeView32

Question

虽然熟悉VBA,但我对WinApi调用很新.我想要做的是挂钩到VBE窗口的子类SysTreeView32(Project Explorer TreeView).我想通过修改注册表项来扩展/折叠树视图元素(或者发送鼠标单击(mouse_event),尽管我更喜欢第一个选项).
我可以使用以下代码找到Excel主窗口:

Declare Function FindWindow Lib "user32" Alias "FindWindowA" _
              (ByVal lpClassName As String, ByVal lpWindowName As String) As Long

Sub Find_Window()
    Dim hWndExcel As Long
    hWndExcel = FindWindow("XLMAIN", Application.Caption)
    MsgBox hWndExcel
End Sub

在Window Detective的帮助下,我可以访问子类的名称,属性等.

但我无法解决如何访问/激活(甚至返回HWID)SysTreeView32子类以折叠/展开元素(文件夹).我不知道如何迭代元素,但我会在之后研究它.这里的问题是访问SysTreeView32课程.我怎样才能实现它？

当我尝试MSGBOX这
FindWindow("wndclass_desked_gsk", Application.Caption)
还是
FindWindow("SysTreeView32", Application.Caption)
一个0返回所以我明明做错了什么:/
谢谢你的时间.

Answer 1

你应该使用:

application.vbe.mainwindow.caption

这是一些示例崩溃代码

Private Const TVE_COLLAPSE = &H1
Private Const TVE_COLLAPSERESET = &H8000
Private Const TVE_EXPAND = &H2
Private Const TVE_EXPANDPARTIAL = &H4000
Private Const TVE_TOGGLE = &H3
Private Const TV_FIRST = &H1100
Private Const TVM_EXPAND = (TV_FIRST + 2)
Private Const TVM_GETNEXTITEM = (TV_FIRST + 10)
Private Const TVGN_ROOT = &H0
Private Const TVGN_NEXTVISIBLE = &H6

Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" _
                              (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long
Public Declare Function SendMessage Lib "user32" Alias "SendMessageA" _
                                    (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long

Sub CollapseProjects()
   Dim hWndVBE As Long, hWndPE As Long, hWndTvw As Long, hNode As Long, varReturn
   hWndVBE = FindWindowEx(0, 0, "wndclass_desked_gsk", Application.VBE.MainWindow.Caption)
   hWndPE = FindWindowEx(hWndVBE, 0, "PROJECT", vbNullString)
   hWndTvw = FindWindowEx(hWndPE, 0, "SysTreeView32", vbNullString)
   hNode = SendMessage(hWndTvw, TVM_GETNEXTITEM, TVGN_ROOT, 0&)
   Do While hNode <> 0
      varReturn = SendMessage(hWndTvw, TVM_EXPAND, TVE_COLLAPSE, hNode)
      hNode = SendMessage(hWndTvw, TVM_GETNEXTITEM, TVGN_NEXTVISIBLE, hNode)
   Loop
End Sub

继续你的评论,这里是只折叠'Microsoft Excel Objects'节点的代码

Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" _
                              (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long
Public Declare Function SendMessage Lib "user32" Alias "SendMessageA" _
                                    (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Public Declare Function SendMessageB Lib "user32" Alias "SendMessageA" _
                                     (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByRef lParam As Any) As Long

Private Const MAX_ITEM        As Long = 256
Private Const TV_FIRST        As Long = &H1100
Private Const TVM_EXPAND      As Long = (TV_FIRST + 2)
Private Const TVM_GETNEXTITEM As Long = (TV_FIRST + 10)
Private Const TVM_GETITEM     As Long = (TV_FIRST + 12)
Const TVE_COLLAPSE            As Long = &H1
Const TVE_EXPAND              As Long = &H2
Private Const TVGN_ROOT       As Long = &H0
Private Const TVGN_NEXT       As Long = &H1
Private Const TVIF_TEXT       As Long = &H1
Private Const TVGN_NEXTVISIBLE = &H6

Private Type TVITEM   ' was TV_ITEM
   mask                       As Long
   hItem                      As Long
   state                      As Long
   stateMask                  As Long
   pszText                    As String
   cchTextMax                 As Long
   iImage                     As Long
   iSelectedImage             As Long
   cChildren                  As Long
   lParam                     As Long
End Type


Sub CollapseXLObjects()
   Dim hWndVBE                As Long
   Dim hWndPE                 As Long
   Dim hWndTvw                As Long
   Dim hNode                  As Long
   Dim tvi                    As TVITEM
   Dim nChild                 As Long
   Dim sText                  As String
   Dim varReturn

   hWndVBE = FindWindowEx(0, 0, "wndclass_desked_gsk", Application.VBE.MainWindow.Caption)
   hWndPE = FindWindowEx(hWndVBE, 0, "PROJECT", vbNullString)
   hWndTvw = FindWindowEx(hWndPE, 0, "SysTreeView32", vbNullString)

   hNode = SendMessage(hWndTvw, TVM_GETNEXTITEM, TVGN_ROOT, 0&)

   Do While hNode <> 0
      tvi.hItem = hNode
      tvi.mask = TVIF_TEXT
      tvi.cchTextMax = MAX_ITEM
      tvi.pszText = String(MAX_ITEM, 0)
      nChild = SendMessageB(hWndTvw, TVM_GETITEM, 0&, tvi)
      If InStr(1, tvi.pszText, "Microsoft Excel Objects", vbTextCompare) > 0 Then
         varReturn = SendMessage(hWndTvw, TVM_EXPAND, TVE_COLLAPSE, hNode)
      Else
         varReturn = SendMessage(hWndTvw, TVM_EXPAND, TVE_EXPAND, hNode)
      End If
      hNode = SendMessage(hWndTvw, TVM_GETNEXTITEM, TVGN_NEXTVISIBLE, hNode)
   Loop
End Sub