SetThreadGroupAffinity function

Sets the processor group affinity for the specified thread.

Syntax

BOOL SetThreadGroupAffinity(
  _In_            HANDLE          hThread,
  _In_      const GROUP_AFFINITY  *GroupAffinity,
  _Out_opt_       PGROUP_AFFINITY PreviousGroupAffinity
);

Parameters

hThread [in]

A handle to the thread.

The handle must have the THREAD_SET_INFORMATION access right. For more information, see Thread Security and Access Rights.

GroupAffinity [in]

A GROUP_AFFINITY structure that specifies the processor group affinity to be used for the specified thread.

PreviousGroupAffinity [out, optional]

A pointer to a GROUP_AFFINITY structure to receive the thread's previous group affinity. This parameter can be NULL.

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, use GetLastError.

Remarks

To compile an application that uses this function, set _WIN32_WINNT >= 0x0601. For more information, see Using the Windows Headers.

Requirements

See also

GROUP_AFFINITY