ClearCanvas.Desktop.View.WinForms.DesktopWindowView.FormFormClosingEventHandler C# (CSharp) Method

        private void FormFormClosingEventHandler(object sender, FormClosingEventArgs e)
        {
            switch (e.CloseReason)
            {
                case System.Windows.Forms.CloseReason.ApplicationExitCall:
					//When there is a "fatal exception", we terminate the gui toolkit, which calls Application.Exit().
					//So, we can't cancel the close, otherwise the application can get into a funny state.
					return;
                case System.Windows.Forms.CloseReason.TaskManagerClosing:
                case System.Windows.Forms.CloseReason.WindowsShutDown:
                    // windows is trying close the application, not just this window
                    // rather than propagate the request to close this window, we need
                    // to ask the entire desktop to quit
                    Application.Quit();
                    break;
                case System.Windows.Forms.CloseReason.UserClosing:
                case System.Windows.Forms.CloseReason.None:

                    // notify the model that a close request was made
                    RaiseCloseRequested();
                    break;
                default:
                    // other close reasons are not applicable
                    break;
            }

			// cancel the request - don't let winforms close the form
			e.Cancel = true;
        }