我有一个问题?!我用这种方式只运行一个程序实例。它做得很好。但是当我在其他应用程序中使用这种方式时。当我通过桌面上的快捷方式运行其中一个程序时,这两个程序都会调用并显示在桌面上。注意:这两个程序都运行在windows系统试试。
static bool ok;
static Mutex mutex = new Mutex(true, "{123Newsoft-Cleaner Portable Program123}",out ok);
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
//Application.EnableVisualStyles();
//Application.SetCompatibleTextRenderingDefault(false);
//Application.Run(new Form1());
if (mutex.WaitOne(TimeSpan.Zero, true))
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
var mainForm = new Form1c();
try
{
mainForm.Visible = false;
mainForm.WindowState = FormWindowState.Normal;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
Application.Run(mainForm);
}
else
{
NativeMethods.PostMessage((IntPtr)NativeMethods.HWND_BROADCAST, NativeMethods.WM_SHOWME, IntPtr.Zero, IntPtr.Zero);
}
//---------------- 在主窗体中
protected override void WndProc(ref Message M_C)
{
if (M_C.Msg == NativeMethods.WM_SHOWME)
{
ShowMe();
}
base.WndProc(ref M_C);
}
//*************
private void ShowMe()
{
if (WindowState == FormWindowState.Minimized)
{
Show();
WindowState = FormWindowState.Normal;
}
// get our current "TopMost" value (ours will always be false though)
bool top = TopMost;
// make our form jump to the top of everything
TopMost = true;
// set it back to whatever it was
TopMost = top;
}