GetNamedPipeClientProcessId function (winbase.h)

Retrieves the client process identifier for the specified named pipe.


BOOL GetNamedPipeClientProcessId(
  [in]  HANDLE Pipe,
  [out] PULONG ClientProcessId


[in] Pipe

A handle to an instance of a named pipe. This handle must be created by the CreateNamedPipe function.

[out] ClientProcessId

The process identifier.

Return value

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call the GetLastError function.


Windows 10, version 1709:  Pipes are only supported within an app-container; ie, from one UWP process to another UWP process that's part of the same app. Also, named pipes must use the syntax \\.\pipe\LOCAL\ for the pipe name.


Requirement Value
Minimum supported client Windows Vista [desktop apps | UWP apps]
Minimum supported server Windows Server 2008 [desktop apps | UWP apps]
Target Platform Windows
Header winbase.h (include Windows.h)
Library Kernel32.lib
DLL Kernel32.dll

See also



Pipe Functions

Pipes Overview