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I was wondering if there is some API/trick/hack that would allow a laptop to wake up from sleep when it senses that it is connected to power, or that its battery is charging. I know I could build an external device that would send a wake-up network packet when it senses power, but I want to do this purely in software, i.e. via API.
If this cannot be done on Windows, perhaps Linux?
I don't think it would have anything to do with OS. When the computer is sleeping, the CPU is shut off, so no code is running. You'll have to somehow do it in BIOS.
yes, the APM API will let your application detect whether it is on battery only or connected to AC. It could then issue a wakeup command. I believe you would only be able to have it in low power mode though, as the aplications has to actually run occasionally.
ACPI does, too. But the computer will have to be awake to check it.
Yeah i don't think it can go into full shutdown, or hibernate, but there are a few modes it can use that still allow applications to occasionally process WM_ or APM_ messageQuote:
Originally Posted by cyberfish
http://msdn.microsoft.com/en-us/libr...35(VS.85).aspx
i think u can make a pc wake up from shutdown by wake on lan it allows pc in network to open each other
Theres an easier way than that, as the article i linked to says, you just have to create a waitable timer.Quote:
Originally Posted by elwad