RtGetProcessorInfo

RtGetProcessorInfo retrieves the system-wide processor numbers for the lowest and highest processors.

Syntax

BOOL RtGetProcessorInfo(
    PDWORD lpLowestSystemProcessor,
    PDWORD lpHighestSystemProcessor
);

Parameters

lpLowestSystemProcessor

A pointer to a DWORD whose value will be changed to the lowest processor upon a success.

lpHighestSystemProcessor

A pointer to a DWORD whose value will be changed to the highest processor upon a success.

Return Value

Returns true if the function succeeds. Returns false if the function fails.

To get extended error information, call GetLastError. GetLastError

Remarks

If either parameter is NULL, this function returns ERROR_INVALID_PARAMETER.

Processors are identified by their 0-based system-wide processor number when using an affinity mask within an RTAPI call.

For example, three processors are dedicated to Windows and five are dedicated to RTSS. Physically, this configuration translates into dedicating Processors 0, 1, and 2 to Windows and Processors 3 through 7 to RTSS.

Requirements

See Also:

• RtGetProcessAffinityMask
• RtSetProcessAffinityMask