public static int PowerSchemeSetLidActionShell(ref Guid powerScheme, LidAction value)
{
StringBuilder stringBuilder = new StringBuilder("powercfg -SETACVALUEINDEX");
stringBuilder.Append(" " + powerScheme.ToString());
stringBuilder.Append(" " + GUID_SYSTEM_BUTTON_SUBGROUP.ToString());
stringBuilder.Append(" " + LID_ACTION.ToString());
stringBuilder.Append(" " + (int)value);
Shell.ShellExecuteCommand(stringBuilder.ToString(), false);
stringBuilder = new StringBuilder("powercfg -SETDCVALUEINDEX");
stringBuilder.Append(" " + powerScheme.ToString());
stringBuilder.Append(" " + GUID_SYSTEM_BUTTON_SUBGROUP.ToString());
stringBuilder.Append(" " + LID_ACTION.ToString());
stringBuilder.Append(" " + (int)value);
Shell.ShellExecuteCommand(stringBuilder.ToString(), false);
stringBuilder = new StringBuilder("powercfg -SETACTIVE");
stringBuilder.Append(" " + powerScheme.ToString());
Shell.ShellExecuteCommand(stringBuilder.ToString(), false);
return(0);
}
public static void PowerActiveSchemeSetLidAction(LidAction lidAction)
{
IntPtr activeGuidPtr = IntPtr.Zero;
if (PowerGetActiveScheme(IntPtr.Zero, ref activeGuidPtr) == 0)
{
var tmpGuid = (Guid)Marshal.PtrToStructure(activeGuidPtr, typeof(Guid));
PowerSchemeSetLidAction(ref tmpGuid, lidAction);
}
}
public static uint PowerSchemeSetLidAction(ref Guid powerScheme, LidAction value)
{
uint resDC, resAC;
resDC = PowerWriteDCValueIndex(IntPtr.Zero, ref powerScheme,
ref GUID_SYSTEM_BUTTON_SUBGROUP,
ref LID_ACTION, (uint)value);
resAC = PowerWriteACValueIndex(IntPtr.Zero, ref powerScheme,
ref GUID_SYSTEM_BUTTON_SUBGROUP,
ref LID_ACTION, (uint)value);
if (resDC == 0 && resAC == 0)
{
resAC = PowerSetActiveScheme(IntPtr.Zero, ref powerScheme);
}
return(resAC);
}
public static uint PowerSchemeGetLidAction(ref Guid powerScheme, ref LidAction value)
{
uint res;
//Get the Power Settings
Guid actionGuid = Guid.Empty;
uint index = 0;
uint BufferSize = Convert.ToUInt32(Marshal.SizeOf(typeof(Guid)));
while (PowerEnumerate(IntPtr.Zero, ref powerScheme, ref GUID_SYSTEM_BUTTON_SUBGROUP,
18, index, ref actionGuid, ref BufferSize) == 0)
{
/* Search for lid action by Guid */
if (actionGuid != LID_ACTION)
{
index++;
continue;
}
uint size = 4;
IntPtr temp = IntPtr.Zero;
int type = 0;
res = PowerReadACValue(IntPtr.Zero, ref powerScheme, IntPtr.Zero,
ref actionGuid, ref type, ref temp, ref size);
if (res != 0)
{
/* error handling */
return(res);
}
value = (LidAction)temp;
return(0);
}
return(2);
}
