PowrProf.java

/**
 * Oshi (https://github.com/dblock/oshi)
 * 
 * Copyright (c) 2010 - 2015 The Oshi Project Team
 * 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 * dblock[at]dblock[dot]org
 * alessandro[at]perucchi[dot]org
 * widdis[at]gmail[dot]com
 * https://github.com/dblock/oshi/graphs/contributors
 */
package oshi.software.os.windows.nt;

import java.util.Arrays;
import java.util.List;

import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.NativeLong;
import com.sun.jna.Pointer;
import com.sun.jna.Structure;

/**
 * Power profile stats
 * 
 * @author widdis[at]gmail[dot]com
 */
public interface PowrProf extends Library {
	PowrProf INSTANCE = (PowrProf) Native.loadLibrary("PowrProf",
			PowrProf.class);

	public static int SYSTEM_BATTERY_STATE = 5;

	public static class SystemBatteryState extends Structure {
		public byte acOnLine; // boolean
		public byte batteryPresent; // boolean
		public byte charging; // boolean
		public byte discharging; // boolean
		public byte[] spare1 = new byte[4]; // unused
		public int maxCapacity; // unsigned 32 bit
		public int remainingCapacity; // unsigned 32 bit
		public int rate; // signed 32 bit
		public int estimatedTime; // signed 32 bit
		public int defaultAlert1; // unsigned 32 bit
		public int defaultAlert2; // unsigned 32 bit

		@Override
		protected List<String> getFieldOrder() {
			return Arrays.asList(new String[] { "acOnLine", "batteryPresent",
					"charging", "discharging", "spare1", "maxCapacity",
					"remainingCapacity", "rate", "estimatedTime",
					"defaultAlert1", "defaultAlert2" });
		}
	}

	int CallNtPowerInformation(int informationLevel, Pointer lpInputBuffer,
			NativeLong nInputBufferSize, Structure lpOutputBuffer,
			NativeLong nOutputBufferSize);
}