pxt-calliope/clients/winuploader/Microbit.Uploader/SingleInstanceAppStarter.cs

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/****************************** Module Header ******************************\
* Module Name: SingleInstanceAppStarter.cs
* Project: CSWinFormSingleInstanceApp
* Copyright (c) Microsoft Corporation.
*
* The sample demonstrates how to achieve the goal that only
* one instance of the application is allowed in Windows Forms application..
*
* This source is subject to the Microsoft Public License.
* See http://www.microsoft.com/en-us/openness/resources/licenses.aspx#MPL.
* All other rights reserved.
*
* THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
* EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
\***************************************************************************/
using System;
using System.Windows.Forms;
using Microsoft.VisualBasic.ApplicationServices;
namespace Microsoft.MicroBit
{
internal static class SingleInstanceAppStarter
{
static SingleInstanceApp app = null;
// Construct SingleInstanceApp object, and invoke its run method.
public static void Start(Form f, StartupNextInstanceEventHandler handler)
{
if (app == null && f != null)
app = new SingleInstanceApp(f);
// Wire up StartupNextInstance event handler.
app.StartupNextInstance += handler;
app.Run(Environment.GetCommandLineArgs());
}
}
}