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Richard Lanoue 
7 years ago
I'd like to know if there is a VB code that will open a folder the way you use theses ShellExec Commands...BUT the folder ipes up to specific View Settings namely Extra Large all the time. I tried saving it but the settings eventually go to something else.  Also some folders I want the icons to be in List View and others in Extra Large view... Can you also make the window that opens up have a specific Groupby setting all the time?


Reply from Alex Hedley:

Found on another Forum. I haven't tested this.

http://www.vbforums.com/showthread.php?409476-RESOLVED-brain-freeze-how-would-open-a-particular-folder-%28in-Windows%29-from-my-app

Option Explicit

Private Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" ( _
                ByVal hwnd As Long, _
                ByVal lpOperation As String, _
                ByVal lpFile As String, _
                ByVal lpParameters As String, _
                ByVal lpDirectory As String, _
                ByVal nShowCmd As Long) As Long

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

Private 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

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 Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)

Private Enum FolderView
    viewDEFAULT = 0
    viewICON = &H7029
    viewLIST = &H702B
    viewREPORT = &H702C
    viewTHUMBNAIL = &H702D
    viewTILE = &H702E
End Enum

Private Const SW_SHOWNORMAL As Long = 1
Private Const WM_COMMAND = &H111

Private Sub Command1_Click()
    OpenFolder "C:\", viewREPORT
End Sub

Private Sub OpenFolder(ByVal sFolderPath As String, Optional ByVal eView As FolderView = viewDEFAULT)
    Dim N As Long, lhWnd As Long, lPrevhWnd As Long
    If Len(Dir(sFolderPath, vbDirectory)) = 0 Then Exit Sub
    
    lPrevhWnd = FindWindow("CabinetWClass", vbNullString)
    ShellExecute Me.hwnd, "Open", sFolderPath, vbNullString, vbNullString, SW_SHOWNORMAL
    
    If eView Then
        Do
            DoEvents: N = N + 1
            lhWnd = FindWindow("CabinetWClass", vbNullString)
        Loop Until Not (lPrevhWnd = lhWnd Or lhWnd = 0) Or N = 100000
        
        If N = 100000 Or lhWnd = 0 Then Exit Sub
        Call Sleep(100)
        
         lhWnd = FindWindowEx(lhWnd, 0&, "SHELLDLL_DefView", vbNullString)
        SendMessage lhWnd, WM_COMMAND, ByVal eView, 0&
    End If
End Sub



GetOpenFileName: Set an Open/Save Dialog's Initial Listview View
http://vbnet.mvps.org/index.html?code/hooks/fileopensavedlghooklvview.htm

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