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QuestionPlease Help me to distinguish windows standby and hibernate

  • Wednesday, September 16, 2009 7:00 AMI Believe I Can Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    I need to distinguish windows standby and hibernate,but windows user-mode application seems can't do it.
    As I know,windows previous sleep state (S1, S3, S4, etc.) is recorded in an ACPI register (can search for SLP_TYP in ACPI spec). So that's one possible way to figure out S3 vs. S4. 
    But,I don't know how to read corresponding ACPI register?
    Please help me!

     

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