GetActiveProcessorCount function (winbase.h)
Returns the number of active processors in a processor group or in the system.
Syntax
DWORD GetActiveProcessorCount(
[in] WORD GroupNumber
);
Parameters
[in] GroupNumber
The processor group number. If this parameter is ALL_PROCESSOR_GROUPS, the function returns the number of active processors in the system.
Return value
If the function succeeds, the return value is the number of active processors in the specified group.
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
Requirement | Value |
---|---|
Minimum supported client | Windows 7 [desktop apps only] |
Minimum supported server | Windows Server 2008 R2 [desktop apps only] |
Target Platform | Windows |
Header | winbase.h (include Windows.h) |
Library | Kernel32.lib |
DLL | Kernel32.dll |