挂钩到 VBE 窗口的子类 SysTreeView32 [英] Hook into a child class SysTreeView32 of VBE window

问题描述

虽然熟悉 VBA，但我对 WinApi 调用还是很陌生.我想要做的是挂钩到 VBE 窗口(项目资源管理器树视图)的子类 SysTreeView32.我想通过修改注册表项来展开/折叠树视图元素(或者发送鼠标点击 (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:

I am pretty new to the WinApi calls although familiar with VBA. What I am trying to do is to hook to a child class SysTreeView32 of VBE window (Project Explorer TreeView). I would like to expand/collapse the tree view elements by modifying the registry keys (or alternatively sending the mouse clicks (mouse_event) although I prefer the first option).
I can find the Excel Main Window by using this code:

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，我可以访问名称、属性等.的儿童班.

但我无法弄清楚如何访问/激活(甚至返回)SysTreeView32 子类的 HWID 以折叠/展开元素(文件夹).我还不确定如何迭代这些元素，但我会在之后进行研究.这里的问题是访问 SysTreeView32 类.我怎样才能实现它?

当我尝试 msgbox 这个
FindWindow(wndclass_desked_gsk", Application.Caption)
或
FindWindow("SysTreeView32", Application.Caption)
返回了 0 所以我显然做错了什么:/
感谢您的时间.

With the help of Window Detective I can access the names, properties, etc. of the child classes.

But I cannot work it out how to access/activate(or even return the HWID of) the SysTreeView32 child class to collapse/expand elements(folders). I am not sure how to iterate over the elements yet, but I will research this afterwards. The problem here is accessing the SysTreeView32 class. How can I achieve it?

When I try to msgbox this
FindWindow("wndclass_desked_gsk", Application.Caption)
or
FindWindow("SysTreeView32", Application.Caption)
a 0 is returned so I am obviously doing something wrong :/
Thank you for your time.

推荐答案

你应该使用:

application.vbe.mainwindow.caption

这是一些示例折叠代码

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

除了您的评论之外，这里是仅折叠Microsoft Excel 对象"节点的代码

further to your comment, here's the code to collapse only the 'Microsoft Excel Objects' nodes

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

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