My laptop received a mysterious extra button on it that does not trigger any keyboard messages - I checked it with a low-level key key.
It appears to be a "button with a fixed ACPI function." Any ideas on how I will respond when it is clicked? I found some discussion of how it works in kernel mode . Is this information posted to user mode? Or do I need to write a filter driver?
Win32 or .NET decisions are made. Windows Vista
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