FileDialog

In Module PicMain


    Too many parameters: FileDialog
    Line too long: 234
 135 Private Function FileDialog(ByVal hwndOwner As Long, ByVal DefaultExtension As String, ByVal Filter As String, ByRef FilterIndex As Long, ByVal InitialDir As String, ByVal DialogTitle As String, ByRef Flags As EFileDlgFlags) As String
 136 ' Implementation of ShowFileOpenDialog (see it for description)
 137 
 138 Dim OFN As OpenFilename  ' Structure with dialog information
 139 Dim Result As Long       ' API return value
 140 Dim indNull As Long      ' Index of Null character (ASCII 0)
 141 
 142 Dim ErrMsg As String, ErrCode As Long ' Error information
 143 
 144 ' Populate OFN structure with dialog initialization information
 145 With OFN
 146     .lStructSize = Len(OFN)         ' Length of structure
 147     .hwndOwner = hwndOwner          ' Owner window handle
 148     .lpstrFilter = Replace(Filter, "|", vbNullChar) & vbNullChar & vbNullChar   ' Filters
 149     .nFilterIndex = FilterIndex     ' Selected filter
 150     .lpstrFile = String(MAXFILE, 0) ' Filename
 151     .nMaxFile = MAXFILE             ' Max length of filename
 152     
 153     ' Initial directory
 154     If LenB(InitialDir) = 0 Then
 155         .lpstrInitialDir = CurDir     ' No initial directory given, use current directory
 156     Else
 157         .lpstrInitialDir = InitialDir ' Use given initial directory
 158     End If
 159     .lpstrTitle = DialogTitle         ' Title of dialog
 160     .Flags = Flags                    ' Various flags passed by caller
 161     .lpstrDefExt = DefaultExtension   ' Default file extension
 162 End With
 163 
 164 ' Show the Open dialog
 165 Result = GetOpenFileNameA(OFN)
 166 
 167 If Result <> 0 Then
 168     ' Success
 169     With OFN
 170         ' Retrieve selected filename and set it as the function return value
 171         indNull = InStr(.lpstrFile, vbNullChar)
 172         If indNull > 0 Then
 173             FileDialog = Left$(.lpstrFile, indNull - 1) ' Get rid of terminating null character
 174         Else
 175             FileDialog = .lpstrFile ' No terminating null
 176         End If
 177         
 178         Flags = .Flags              ' Return flags to caller - they may have changed
 179         FilterIndex = .nFilterIndex ' Return selected filter to caller
 180     End With
 181 Else
 182     ' Error or cancel
 183     ' Call CommDlgExtendedError to get error code
 184     ErrCode = CommDlgExtendedError()
 185     
 186     ' Select error message
 187     Select Case ErrCode
 188         Case 0
 189             ' Cancel pressed, no error

    Too many uncommented lines: 34
 190         Case CDERR_DIALOGFAILURE
 191             ErrMsg = "Dialog box could not be created."
 192         Case CDERR_FINDRESFAILURE
 193             ErrMsg = "Failed to find a resource."
 194         Case CDERR_NOHINSTANCE
 195             ErrMsg = "Instance handle missing."
 196         Case CDERR_INITIALIZATION
 197             ErrMsg = "Failure during initialization. Possibly out of memory."
 198         Case CDERR_NOHOOK
 199             ErrMsg = "Hook procedure missing."
 200         Case CDERR_LOCKRESFAILURE
 201             ErrMsg = "Failed to lock a resource."
 202         Case CDERR_NOTEMPLATE
 203             ErrMsg = "Template missing."
 204         Case CDERR_LOADRESFAILURE
 205             ErrMsg = "Failed to load a resource."
 206         Case CDERR_STRUCTSIZE
 207             ErrMsg = "Internal error - invalid struct size."
 208         Case CDERR_LOADSTRFAILURE
 209             ErrMsg = "Failed to load a string."
 210         Case FNERR_BUFFERTOOSMALL
 211             ErrMsg = "File name buffer too small"
 212         Case CDERR_MEMALLOCFAILURE
 213             ErrMsg = "Unable to allocate memory for internal dialog structures."
 214         Case FNERR_INVALIDFILENAME
 215             ErrMsg = "Invalid file name."
 216         Case CDERR_MEMLOCKFAILURE
 217             ErrMsg = "Unable to lock memory."
 218         Case FNERR_SUBCLASSFAILURE
 219             ErrMsg = "Subclass failure, out of memory."
 220         Case Else
 221             ErrMsg = "Unknown error."
 222     End Select
 223     If LenB(ErrMsg) Then
 224         ' An error occurred. Display it.
 225         If LenB(DialogTitle) Then
 226             ErrMsg = "Error #" & ErrCode & " with dialog " & DialogTitle & vbCrLf & ErrMsg
 227         Else
 228             ErrMsg = "Error #" & ErrCode & " with file open dialog" & vbCrLf & ErrMsg
 229         End If
 230         MsgBox ErrMsg, vbExclamation
 231     End If
 232 End If
 233 
 234 End Function
 235 

Called by

ShowFileOpenDialog

Calls

> GetOpenFileNameA
> CommDlgExtendedError