/// <summary>
/// ��ȡʹ���ڴ�ӳ���ļ����ƽ��е�ʵ�����е�ϵͳ�ľ��
/// </summary>
/// <param name="systemName">ϵͳ��ʶ��</param>
/// <returns>����ϵͳ�����ڵľ��</returns>
public static IntPtr GetSystemHandle(string systemName)
{
FileMapping fileMapping = null;
try
{
fileMapping = new FileMapping(systemName);
}
catch
{
return IntPtr.Zero;
}
if (fileMapping.IsFirstInstance)
{
fileMapping.Dispose(true);
return IntPtr.Zero;
}
IntPtr hMainFormHandle = fileMapping.ReadHandleValue(0);
fileMapping.Dispose(false);
return hMainFormHandle;
}