private void OpenButton_Click(object sender, EventArgs e) { _process = _patches.OpenProcess(); if (_process == null) { StatusTextBox.Text = "No process or multiple instances found."; ProcessNameTextBox.Text = String.Empty; ProcessIDTextBox.Text = String.Empty; AvailablePatchesListBox.Enabled = false; ApplyButton.Enabled = false; return; } StatusTextBox.Text = "Open."; ProcessNameTextBox.Text = _process.ProcessName; ProcessIDTextBox.Text = _process.Id.ToString(); AvailablePatchesListBox.Enabled = true; ApplyButton.Enabled = true; }