static class Program
{
[DllImport("User32.dll")]
private static extern bool ShowWindowAsync(IntPtr hWnd, int cmdShow);
[DllImport("User32.dll")]
private static extern bool SetForegroundWindow(IntPtr hWnd);
private const int WS_SHOWNORMAL = 1;
/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
System.Diagnostics.Process[] name = System.Diagnostics.Process.GetProcessesByName(System.Diagnostics.Process.GetCurrentProcess().ProcessName);
if (name.Length > 1)
{
MessageBox.Show("应用程序已启动,请检查!如果没启动请重启计算机");
ShowWindowAsync(name[0].MainWindowHandle, WS_SHOWNORMAL);
SetForegroundWindow(name[0].MainWindowHandle);
}
else
{
Application.Run(new FrmLogin());
}
}
}