App.Previnstance Equivalent Dim appName As String = Process.GetCurrentProcess.ProcessName Dim sameProcessTotal As Integer = Process.GetProcessesByName(appName).Length If sameProcessTotal > 1 Then MessageBox.Show("A previous instance of this application is already open!", " App.PreInstance Detected!", _ MessageBoxButtons.OK, MessageBoxIcon.Information) Me.Close() End If appName = Nothing sameProcessTotal = Nothing
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