public static extern IntPtr CreateNamedPipe(string lpName, PipeOpenModeFlags dwOpenMode, PipeModeFlags dwPipeMode, Int32 nMaxInstances, Int32 nOutBufferSize, Int32 nInBufferSize, Int32 nDefaultTimeOut, IntPtr lpSecurityAttributes);
public static extern IntPtr CreateNamedPipe(string lpName, PipeOpenModeFlags dwOpenMode, PipeModeFlags dwPipeMode, uint nMaxInstances, uint nOutBufferSize, uint nInBufferSize, uint nDefaultTimeOut, ref SECURITY_ATTRIBUTES lpSecurityAttributes);
static extern SafePipeHandle CreateNamedPipe(string lpName, PipeOpenModeFlags dwOpenMode,
PipeModeFlags dwPipeMode, uint nMaxInstances, uint nOutBufferSize, uint nInBufferSize,
uint nDefaultTimeOut, IntPtr lpSecurityAttributes);