If hwndFound Then MultiInst = SINGLE_INSTANCE_OPEN MsgBox "A instance of the application is already open." & vbCrLf & vbCrLf & "Only one open instance allowed.", vbOKOnly + vbExclamation, "App Name"
If IsIconic(hwndFound) Then ShowWindow hwndFound, SW_RESTORE SetForegroundWindow hwndFound Else SetForegroundWindow hwndFound End If ElseIf hwndFound = 0 Then App.Title = strWindowName MultiInst = OPEN_APPLICATION End If End Function