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IOCTL_PROCESSOR_INFORMATION (Compact 2013)

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10/16/2014

This I/O control is a request by an application to retrieve microprocessor information from the OAL and store it in the PROCESSOR_INFO structure. Send this message with KernelIoControl.

This I/O control is optional, but Microsoft recommends that all OEMs support it.

Syntax

BOOL KernelIoControl(
    DWORD dwIoControlCode,    // use IOCTL_PROCESSOR_INFORMATION
    LPVOID lpInBuffer,        // pointer to input buffer
    DWORD nInBufferSize,      // input buffer size
    LPVOID lpOutBuffer,       // pointer to output buffer
    DWORD nOutBufferSize,     // output buffer size
    LPDWORD lpBytesReturned  // number of bytes returned
);

Parameters

  • dwIoControlCode
    [in] Control code for the operation. Use IOCTL_PROCESSOR_INFORMATION for this operation.
  • lpInBuffer
    Not used; set to NULL.
  • nInBufferSize
    Not used; set to zero.
  • lpOutBuffer
    [out] Pointer to an output buffer allocated to hold the PROCESSOR_INFO structure.
  • nOutBufferSize
    [in] Set to the size of the PROCESSOR_INFO structure.
  • lpBytesReturned
    [in] Actual number of bytes returned in lpOutBuffer.

Return Values

Returns TRUE if successful; otherwise, returns FALSE.

Requirements

Header

pkfuncs.h

See Also

Reference

Device Information IOCTLs
CEProcessorType

Other Resources

PROCESSOR_INFO