open a fileDialog in visio vba - vba

Question

I'm coding macros in vba Word and on visio 2013. I wanted to open a fileDialog so that the user can choose where to save his file.
I succeded in word, but in visio it doesn't to work the same.
I wrote this in word:
Dim dlg As FileDialog
Dim strPath As String
'Boite de dialogue pour choisir où enregistrer son fichier
Set dlg = Application.FileDialog(msoFileDialogFolderPicker)
With dlg
.InitialFileName = Application.ActiveDocument.Path
.AllowMultiSelect = False
.Title = "Choisir le répertoire d'enregistrement"
.Show
End With
strPath = dlg.SelectedItems(1)
but it doesn't work in visio. Can someone help me do the same in visio?

Answer 1

If you don't want to use other office application, you can use winapi OpenFileDialog to achieve similar behavior, but it won't as easy as with .FileDialog.
See more details here:
Open File Dialog in Visio
The module source code (compatible with Visio 2010 and above, i.e. with editions which have x64 version). For the original source code, compatible with previous versions, chech the above link.
'// This is code that uses the Windows API to invoke the Open File
'// common dialog. It is used by users to choose a file
Private Declare PtrSafe Function GetOpenFileName Lib "comdlg32.dll" _
Alias "GetOpenFileNameA" (OFN As OPENFILENAME) As Boolean
Private Type OPENFILENAME
lStructSize As Long
hwndOwner As LongPtr
hInstance As LongPtr
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 LongPtr
lpTemplateName As String
End Type
Public Sub OpenFile(ByRef filePath As String, _
ByRef cancelled As Boolean)
Dim OpenFile As OPENFILENAME
Dim lReturn As Long
Dim sFilter As String
' On Error GoTo errTrap
OpenFile.lStructSize = LenB(OpenFile)
'// Sample filter:
'// "Text Files (*.txt)" & Chr$(0) & "*.sky" & Chr$(0) & "All Files (*.*)" & Chr$(0) & "*.*"
sFilter = "All Files (*.*)" & 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 = ThisDocument.Path
OpenFile.lpstrTitle = "Find Excel Data Source"
OpenFile.flags = 0
lReturn = GetOpenFileName(OpenFile)
If lReturn = 0 Then
cancelled = True
filePath = vbNullString
Else
cancelled = False
filePath = Trim(OpenFile.lpstrFile)
filePath = Replace(filePath, Chr(0), vbNullString)
End If
Exit Sub
errTrap:
Exit Sub
Resume
End Sub

Answer 2

Although it says that Visio has Application.FileDialog, it will fail in Visio VBA.
However as a workaround, you can access the FileDialog object through Excel, Word or other Office applications. The code below does it using Word as you are using both.
This is a function that will return an array containing all the path from the selected files :
Public Function Get_File_via_FileDialog() As Variant
'fd will be a FileDialog object
Dim fd As Object
'Array of pathes
Dim A()
ReDim A(0)
'Create an Word object. You can access the FileDialog object through it.
Dim WordApp As Object
On Error Resume Next
Set WordApp = GetObject(, "Word.Application")
If Err.Number > 0 Then Set WordApp = CreateObject("Word.Application")
On Error GoTo 0
WordApp.Visible = True 'This statement necessary so you can see the FileDialog.
'Declare a variable to contain the path
'of each selected item. Even though the path is aString,
'the variable must be a Variant because For Each...Next
'routines only work with Variants and Objects.
Dim vrtSelectedItem As Variant
'Create a FileDialog object as a File Picker dialog box.
Set fd = WordApp.FileDialog(msoFileDialogFilePicker)
'Use a With...End With block to reference the FileDialog object.
With fd
'Use the Show method to display the File Picker dialog box and return the user's action.
'The user pressed the button.
If .Show = -1 Then
WordApp.Visible = False 'Hide the Excel application
'Step through each string in the FileDialogSelectedItems collection.
For Each vrtSelectedItem In .SelectedItems
'vrtSelectedItem is a string that contains the path of each selected item.
'You can use any file I/O functions that you want to work with this path.
'This example displays the path in a message box.
A(UBound(A)) = vrtSelectedItem
ReDim Preserve A(UBound(A) + 1)
Next vrtSelectedItem
'The user pressed Cancel.
End If
End With
'Set the object variable to nothing.
ReDim Preserve A(UBound(A) - 1)
Set fd = Nothing
Set xl = Nothing
Get_File_via_FileDialog = A
End Function