/// <summary>
/// Returns the current system power state currently in effect.
/// </summary>
/// <param name="systemStateName">Receives the system power state name</param>
/// <param name="systemState">Receives the system power state</param>
/// <returns>Win32 error code</returns>
public int GetSystemPowerState(StringBuilder systemStateName, out SystemPowerStates systemState)
{
uint nError = 0;
nError = CEGetSystemPowerState(systemStateName, (uint)systemStateName.Capacity, out systemState);
return((int)nError);
}
/// <summary>
/// Sets the system power state to the requested value.
/// </summary>
/// <param name="systemState">The system power state to set the device to.</param>
/// <returns>Win32 error code</returns>
/// <remarks>Should be used with extreme care since it may result in an unexpected
/// application or system behavior.</remarks>
public int SetSystemPowerState(SystemPowerStates systemState)
{
uint nError = 0;
nError = CESetSystemPowerState(
IntPtr.Zero,
(uint)systemState,
0);
return((int)nError);
}
private static extern uint CEGetSystemPowerState(StringBuilder Buffer, uint Length, out SystemPowerStates Flags);
private static extern uint CEGetSystemPowerState(StringBuilder Buffer, uint Length, out SystemPowerStates Flags);
/// <summary>
/// Returns the current system power state currently in effect.
/// </summary>
/// <param name="systemStateName">Receives the system power state name</param>
/// <param name="systemState">Receives the system power state</param>
/// <returns>Win32 error code</returns>
public int GetSystemPowerState(StringBuilder systemStateName, out SystemPowerStates systemState)
{
uint nError = 0;
nError = CEGetSystemPowerState(systemStateName, (uint)systemStateName.Capacity, out systemState);
return (int)nError;
}
/// <summary>
/// Sets the system power state to the requested value.
/// </summary>
/// <param name="systemState">The system power state to set the device to.</param>
/// <returns>Win32 error code</returns>
/// <remarks>Should be used with extreme care since it may result in an unexpected
/// application or system behavior.</remarks>
public int SetSystemPowerState(SystemPowerStates systemState)
{
uint nError = 0;
nError = CESetSystemPowerState(
IntPtr.Zero,
(uint)systemState,
0);
return (int)nError;
}
