WINCE中只允许程序运行一个实例

.NET CF:

[DllImport("coredll.Dll")]
private static extern int GetLastError();

[DllImport("coredll.Dll")]
private static extern int ReleaseMutex(IntPtr hMutex);

[DllImport("coredll.Dll")]
private static extern IntPtr CreateMutex(SECURITY_ATTRIBUTES lpMutexAttributes,

bool bInitialOwner,

string lpName);

[StructLayout( LayoutKind.Sequential)]
public class SECURITY_ATTRIBUTES
{
　 public int nLength;
　 public int lpSecurityDescriptor;
　 public int bInheritHandle;
}
const int ERROR_ALREADY_EXISTS = 0183;

static void Main()
{
#region Api_Call CreateMutex;
IntPtr hMutex;
　   hMutex=CreateMutex(null,false,"程序名");
　   if (GetLastError()!=ERROR_ALREADY_EXISTS)
　   {
　       Application.Run(new Frmmenu());
　   }
　   else
　   {
　       MessageBox.Show("本程序只允许同时运行一个");
　       ReleaseMutex(hMutex);
}
#endregion
}

EVC:

HANDLE   hMutex=::CreateMutex(NULL,TRUE,L"LiCR");
if(hMutex!=NULL)
{
if(GetLastError()==ERROR_ALREADY_EXISTS)
{

AfxMessageBox( "已经有一个程序运行." );   
            ReleaseMutex(hMutex);
            return  FALSE;  
        }  
    }