PIPE_ACCESS_DUPLEX top-level constant Null safety
The pipe is bi-directional; both server and client processes can read from and write to the pipe. This mode gives the server the equivalent of GENERIC_READ and GENERIC_WRITE access to the pipe. The client can specify GENERIC_READ or GENERIC_WRITE, or both, when it connects to the pipe using the CreateFile function.
const PIPE_ACCESS_DUPLEX = 0x00000003;