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Asked: 2026-06-08T08:20:10+00:00

I’m currently porting code from MSVS2005 to MSVS2010. I have a problem with the

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I’m currently porting code from MSVS2005 to MSVS2010. I have a problem with the function ReadProcessorPwrScheme() (and also WriteProcessorPwrScheme()) that no longer exist.

I looked at the file Powrprof.h to find:

#if (NTDDI_VERSION >= NTDDI_WINXP)
//
// deprecated.
//
STDAPI_(BOOLEAN)
ReadProcessorPwrScheme(
    __in UINT uiID,
    __out PMACHINE_PROCESSOR_POWER_POLICY pMachineProcessorPowerPolicy
    );
#endif

and the same for the write function.

1) It compiled correctly with MSVS2005 but I saw that the SDK changed (just taking a look at the file Powrprof.h and we see that they differ. In the file with MSVS2005, there was no conditional compilation.)

Note that if you want me to tell you which SDK is used you will have to tell me where to find the version number!

2) I’m on Win7 SP1, 64 bits.

Is there a workaround, replacement functions, or whatever that could help me?

Thank you!
Dominique

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1 Answer

  1. Editorial Team

    The documentation tells you what’s going on:

    [ReadProcessorPwrScheme is available for use in the operating systems specified in the Requirements section. It may be altered or unavailable in subsequent versions. See Remarks.]

    Remarks:

    Starting with Windows Vista, power management configuration of the system’s processor is controlled through the GUID_PROCESSOR_SETTINGS_SUBGROUP power settings subgroup. Use the PowerEnumerate function to enumerate individual settings.

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