| Answer | This is an example of how to call the standard file open dialog in Windows 95 or NT:
' From Andre Guirard
Option Public
Option Declare
Dim Filter As String
Dim FileName As String
Dim FileTitle As String
Dim TruncName As String
Dim VaultWIPRoot As String
Dim VaultWIPUserPath As String
Type tagOPENFILENAME
lStructSize As Long
hwndOwner As Long
hInstance As Long
lpstrFilter As String
lpstrCustomFilter As Long
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 Long
End Type
Declare Function GetOpenFileName Lib "comdlg32.dll" Alias "GetOpenFileNameA" (OPENFILENAME As tagOPENFILENAME) As Long
Dim OPENFILENAME As tagOPENFILENAME
Public Const OFN_ALLOWMULTISELECT = &H200
Public Const OFN_CREATEPROMPT = &H2000
Public Const OFN_ENABLEHOOK = &H20
Public Const OFN_ENABLETEMPLATE = &H40
Public Const OFN_ENABLETEMPLATEHANDLE = &H80
Public Const OFN_EXPLORER = &H80000
Public Const OFN_EXTENSIONDIFFERENT = &H400
Public Const OFN_FILEMUSTEXIST = &H1000
Public Const OFN_HIDEREADONLY = &H4
Public Const OFN_LONGNAMES = &H200000
Public Const OFN_NOCHANGEDIR = &H8
Public Const OFN_NODEREFERENCELINKS = &H100000
Public Const OFN_NOLONGNAMES = &H40000
Public Const OFN_NONETWORKBUTTON = &H20000
Public Const OFN_NOREADONLYRETURN = &H8000
Public Const OFN_NOTESTFILECREATE = &H10000
Public Const OFN_NOVALIDATE = &H100
Public Const OFN_OVERWRITEPROMPT = &H2
Public Const OFN_PATHMUSTEXIST = &H800
Public Const OFN_READONLY = &H1
Public Const OFN_SHAREAWARE = &H4000
Public Const OFN_SHAREFALLTHROUGH = 2
Public Const OFN_SHARENOWARN = 1
Public Const OFN_SHAREWARN = 0
Public Const OFN_SHOWHELP = &H10
Function OpenCommDlg ()
Dim Title As String
Dim DefExt As String
Dim szCurDir As String
Dim APIResults%
'Give the dialog a caption title.
Title = "Add supporting document" & Chr$(0)
'Allocate string space for returned strings
FileName = Chr$(0) & Space$(255) & Chr$(0)
FileTitle = Space$(255) & Chr$(0)
'If the user does not specify an extension, append TXT.
DefExt = "TXT" & Chr$(0)
'Set up the default directory
szCurDir = Curdir$ & Chr$(0)
'Set up the data structure before you call the GetOpenFileName
OPENFILENAME.lStructSize = Len(OPENFILENAME)
'If the OpenFile Dialog box is not linked to any form use this line.
'It will pass a null pointer.
OPENFILENAME.hwndOwner = 0&
OPENFILENAME.lpstrFilter = Filter
OPENFILENAME.nFilterIndex = 1
OPENFILENAME.lpstrFile = FileName
OPENFILENAME.nMaxFile = Len(FileName)
OPENFILENAME.lpstrFileTitle = FileTitle
OPENFILENAME.nMaxFileTitle = Len(FileTitle)
OPENFILENAME.lpstrTitle = Title
OPENFILENAME.Flags = OFN_FILEMUSTEXIST
OPENFILENAME.lpstrDefExt = DefExt
OPENFILENAME.hInstance = 0
OPENFILENAME.lpstrCustomFilter = 0
OPENFILENAME.nMaxCustFilter = 0
OPENFILENAME.lpstrInitialDir = szCurDir
OPENFILENAME.nFileOffset = 0
OPENFILENAME.nFileExtension = 0
OPENFILENAME.lCustData = 0
OPENFILENAME.lpfnHook = 0
OPENFILENAME.lpTemplateName = 0
'This will pass the desired data structure to the Windows API,
'which will in turn it uses to display the Open Dialog form.
APIResults% = GetOpenFileName(OPENFILENAME)
If APIResults% <> 0 Then
FileName = Cstr( OPENFILENAME.lpstrFile )
FileTitle = Cstr( OPENFILENAME.lpstrFileTitle )
OpenCommDlg = 1
Else
OpenCommDlg = 0
End If
End Function
Sub Initialize
If (OpenCommDlg = 1) Then
Print " "
Else
Print "No documents were attached."
End If
End Sub
For non-Windows Notes 4.5 and above users, you can use:
@Prompt([LocalBrowse]) |