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Thread: Closing File Select Dialog

  1. #1

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    Closing File Select Dialog

    closing a dialog window called from a process can have problems as the code will stop running while the dialog is open

    a simple solution is a second exe file to find and close the dialog
    compile this into a formless executable
    Code:
    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 GetWindowText Lib "user32" Alias "GetWindowTextA" _
    (ByVal HWnd As Long, ByVal lpString As String, ByVal cch As Long) As Long
    
    Private Declare Function GetWindowTextLength Lib "user32" Alias _
    "GetWindowTextLengthA" (ByVal HWnd As Long) 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)
    
    Dim Ret As Long, childret As Long, openret As Long
    Dim strBuff As String, ButCap As String
    Dim combo As Long
    
    Const WM_SETTEXT = &HC
    Const BM_CLICK = &HF5
    
    Sub Main()
    Dim wcap As String, bcap As String, upfile As String, params() As String, s As String, timeout As Long
    params = Split(Command, "-")
    wcap = Replace(Trim(params(0)), """", "")  ' window caption
    bcap = Replace(Trim(params(1)), """", "")  ' button caption
    upfile = Replace(Trim(params(2)), """", "") ' file path\name.ext to upload
    ' any of the above parameters that could contain spaces, must be enclosed in quotes by the calling application
    ' separate the parameters using - character
    'timeout value can be altered if required as optional extra parameter
    If UBound(params) = 3 Then timeout = Trim(params(3)) Else timeout = 15   ' 15 seconds
    'MsgBox wcap & vbNewLine & bcap & vbNewLine & upfile
    t = Timer
    
    Do While Ret = 0 And Timer < t + timeout
    DoEvents
        Ret = FindWindow(vbNullString, wcap)
    
        s = ""
        If Ret <> 0 Then
        Sleep 1000  ' let dialog load fully was not required in older OS
    
            '~~> Get the handle of the TextBox Window where we need to type the filename
            combo = FindWindowEx(Ret, ByVal 0&, "ComboBoxEx32", vbNullString)
    
            combo = FindWindowEx(combo, ByVal 0&, "Combobox", vbNullString)
    
            childret = FindWindowEx(combo, ByVal 0&, "Edit", vbNullString)
    
            If childret <> 0 Then
                'MsgBox "TextBox's Window Found"
                '~~> This is where we send the filename to the Text Window
                SendMess upfile, childret
    
                DoEvents
    
                '~~> Get the handle of the Button's "Window"
                
                childret = FindWindowEx(Ret, ByVal 0&, "Button", vbNullString)
    
                '~~> Check if we found it or not
                If childret <> 0 Then
                    'MsgBox "Button's Window Found"
    
                    '~~> Get the caption of the child window
                    strBuff = String(GetWindowTextLength(childret) + 1, Chr$(0))
                    GetWindowText childret, strBuff, Len(strBuff)
                    ButCap = strBuff
    
                    '~~> Loop through all child windows
                    Do While childret <> 0
                        '~~> Check if the caption has the word "OK"
                        If InStr(1, ButCap, bcap) Then
                            '~~> If this is the button we are looking for then exit
                            openret = childret
                            Exit Do
                        End If
    
                        '~~> Get the handle of the next child window
                        childret = FindWindowEx(Ret, childret, "Button", vbNullString)
                        '~~> Get the caption of the child window
                        strBuff = String(GetWindowTextLength(childret) + 1, Chr$(0))
                        GetWindowText childret, strBuff, Len(strBuff)
                        ButCap = strBuff
                    Loop
    
                    '~~> Check if we found it or not
                    If openret <> 0 Then
                        '~~> Click the OK Button
                        SendMessage childret, BM_CLICK, 0, vbNullString
                        s = "Window closed"
                    Else
                        s = "The Handle of OK Button was not found"
                    End If
                Else
                     s = "Button's Window Not Found"
                End If
            Else
                s = "The Edit Box was not found"
            End If
        Else
            s = "Dialog Window was not Found"
        End If
    Loop
    'MsgBox s
    End Sub
    
    Sub SendMess(Message As String, HWnd As Long)
        Call SendMessage(HWnd, WM_SETTEXT, False, ByVal Message)
    End Sub
    this can then be shelled from any other code VB6, VBA and possibly VBS
    using code like
    Code:
    Private Sub Command1_Click()
    Dim wb As Object, params As String
    Set wb = CreateObject("internetexplorer.application")
    wb.navigate2 somesite  ' with file input element
    wb.Visible = True
    upfile = "c:\temp\list1.txt"  'file path to upload
    params = """C:\Documents and Settings\user\timerclosedialog\closefiledialog2.exe"" ""Choose File to Upload-&Open-" & upfile & """"
    'change path\filename above to the exe where you compile it
    ' change dialog caption and button caption if required
    Shell params
    DoEvents
    wb.document.All("uploadedfile").Click    ' change to file input element on form
    ' end of testing, no further code used here
    End Sub
    you must shell the executable before displaying the dialog
    the arguments passed when shelling the exe are separated by a - (spaces are not required, but will be ignored if present), 3 arguments are required, with an optional time out value
    arguments are:-
    dialog caption
    button caption
    filename to pass to dialog
    timeout (optional)

    dialog and button captions are language dependent and may possibly vary on other factors, which is why i made them to be passed as arguments

    originally from http://www.vbforums.com/showthread.p...t=close+dialog
    Last edited by westconn1; May 1st, 2016 at 04:27 PM.
    i do my best to test code works before i post it, but sometimes am unable to do so for some reason, and usually say so if this is the case.
    Note code snippets posted are just that and do not include error handling that is required in real world applications, but avoid On Error Resume Next

    dim all variables as required as often i have done so elsewhere in my code but only posted the relevant part

    come back and mark your original post as resolved if your problem is fixed
    pete

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