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Is there windows api to check whether the computer supports Modern Standby?

leif li 46 Reputation points
2022-04-26T03:30:13.907+00:00

Do not use CMD command（powercfg /a） to view

Windows API - Win32
Windows API - Win32
A core set of Windows application programming interfaces (APIs) for desktop and server applications. Previously known as Win32 API.
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  1. Castorix31 84,281 Reputation points
    2022-04-26T07:07:00.83+00:00

    You can do 

                SYSTEM_POWER_CAPABILITIES spc = { 0 };
            NTSTATUS nRet = CallNtPowerInformation(SystemPowerCapabilities, NULL, 0, &spc, sizeof(spc));

    and check spc.AoAc

    2 people found this answer helpful.

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  1. Xiaopo Yang - MSFT 12,721 Reputation points Microsoft Vendor
    2022-04-26T06:25:16.03+00:00

    Hello,

    Welcome to Microsoft Q&A!

    Have you tried GetDevicePowerState? According to System Power States, Systems that support Modern Standby do not use S1-S3.
    I'm afraid there is no direct WinAPI to check Modern Standby.

    Thank you.

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