public void DeleteHibernationFile()
{
IntPtr inbool = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(Int32)));
Marshal.WriteInt32(inbool, 0);
NativePowrProfInterop.CallNtPowerInformation(
(int)InformationLevel.SystemReserveHiberFile,
inbool,
0,
IntPtr.Zero,
(uint)Marshal.SizeOf(typeof(SystemPowerInformation))
);
}
public SystemPowerInformation GetSystemPowerInformation()
{
IntPtr status = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(SystemPowerInformation)));
NativePowrProfInterop.CallNtPowerInformation(
(int)InformationLevel.SystemPowerInformation,
IntPtr.Zero,
0,
status,
(uint)Marshal.SizeOf(typeof(SystemPowerInformation))
);
var spi = (SystemPowerInformation)Marshal.PtrToStructure(status, typeof(SystemPowerInformation));
return(spi);
}
public SystemBatteryState GetSystemBatteryState()
{
IntPtr status = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(SystemBatteryState)));
NativePowrProfInterop.CallNtPowerInformation(
(int)InformationLevel.SystemBatteryState,
(IntPtr)null,
0,
status,
(uint)Marshal.SizeOf(typeof(SystemBatteryState))
);
SystemBatteryState sbs = (SystemBatteryState)Marshal.PtrToStructure(status, typeof(SystemBatteryState));
return(sbs);
}
public ulong GetLastWakeTime()
{
IntPtr status = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(ulong)));
NativePowrProfInterop.CallNtPowerInformation(
(int)InformationLevel.LastWakeTime,
(IntPtr)null,
0,
status,
(uint)Marshal.SizeOf(typeof(SystemBatteryState))
);
ulong lwt = (ulong)Marshal.PtrToStructure(status, typeof(ulong));
return(lwt);
}