[AccessD] Dialog Box for Creating .txt Tables

My search for a solution in the hoary seas of Windows APIs and an additional question.
 
I am mildly astonished at the number of posts my original question has generated.
 
As an intermediate level developer APIs are a bit intimidating- I have never tried to use one of them before. For those other intermediate lurkers who may be following this string, I thought that the following may be useful:
 
My original post (shown below) generated a response from Rocky Smolin.
It assured me that what I wanted to do was ,in fact,  possible. I got out my ADH and tried and with Rocky’s code tried to develop a solution. But the ADH can also be difficult for an intermediate level developer. 
 
I did a Google and found more explicit examples by Ken Getz in ( The Access WEB) that I was able to use.
www.mvps.org/access/toc.htm
Index item   “Call the Standard Windows File Open/Save Dialog Box”
 
However, even this was (for me) a bit dense.
 
Then Stuart McLachlan posted his code (shown below) that is easier for me to follow .
 
My additional question is:
 
After I evoke the Dialog Box, if I click on “Save” without entering a file name the system does nothing. If I then click on “Cancel”, I can test for a zero length string, and display an error message or direct the application to a default file directory and .txt file name.
 
I can live with I now have, But is there an easy way (using Stuart’s code) to have the system respond when I click on “Save” without entering a file name?
 
Finally, thanks to those who responded  to my post. 
 
>>> 
Stuart McLachlan’s post with code
 
Using the  Windows API

      Declare Function GetSaveFileName Lib "comdlg32.dll" Alias _
         "GetSaveFileNameA" (pOpenfilename As OPENFILENAME) As Long

      Type OPENFILENAME
         lStructSize As Long
         hwndOwner As Long
         hInstance As Long
         lpstrFilter As String
         lpstrCustomFilter As String
         nMaxCustFilter As Long
         nFilterIndex As Long
         lpstrFile As String
         nMaxFile As Long
         lpstrFileTitle As String
         nMaxFileTitle As Long
         lpstrInitialDir As String
         lpstrTitle As String
         flags As Long
         nFileOffset As Integer
         nFileExtension As Integer
         lpstrDefExt As String
         lCustData As Long
         lpfnHook As Long
         lpTemplateName As String
       End Type

Function SaveFileName() as String
         Dim OpenFile As OPENFILENAME
         Dim lReturn As Long
         Dim sFilter As String
         OpenFile.lStructSize = Len(OpenFile)

         ‘OpenFile.hwndOwner = Me.hWnd  
         ‘I had to modify this line (as shown below) to get the function to run
OpenFile.hwndOwner = hWnd
         OpenFile.hInstance = 0
         sFilter = "" & Chr(0)
         OpenFile.lpstrFilter = sFilter
         OpenFile.nFilterIndex = 1
         OpenFile.lpstrFile = String(257, 0)
         OpenFile.nMaxFile = Len(OpenFile.lpstrFile) - 1
         OpenFile.lpstrFileTitle = OpenFile.lpstrFile
         OpenFile.nMaxFileTitle = OpenFile.nMaxFile
         OpenFile.lpstrInitialDir = "C:\"
         OpenFile.lpstrTitle = "Select File"
         OpenFile.flags = 0
         lReturn = GetSaveFileName(OpenFile)
         SaveFilename = Left$(OpenFile.lpstrFile, InStr(OpenFile.lpstrFile, Chr$(0)) - 1)
End Function

 > My Original Post -----Original Message-----
> From: accessd-bounces at databaseadvisors.com
> [mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Bud Goss
> Sent: Tuesday, March 17, 2009 2:45 PM
> To: Access Group
> Subject: [AccessD] Dialog Box for Creating .txt tables
>
> I have an Access application that creates a text (.txt) table using
> DoCmd.TransferText.
>
> In this application, I would like to display a windows dialog box showing
> “Save in;” and “File name:” that would allow the user to navigate to the
> directory where the table would be located and designate file name to be
> used.
> (Similar to the dialog box that you see when you do a file save as in
> Microsoft word etc.)
>
> Is it possible to do this in Access?
>
> If so, would some one tell me where I can find information and examples.
> --