WEBCAM LIB, VIDEO FOR JAVA, API JAVA JNA POUR AVICAP.DLL, MSVFW.DLL, VFW.H

/**
 * Webcam Library, version 1.2
 * The easiest way to manage webcam devices in java.
 * (c) 2008 Pierrick HYMBERT <pierrick.hymbert@gmail.com>	
 * This library is "PROVIDED AS IS" without guaranty of any kinds.
 * Webcam Library is freely distribuable under the terms of an MIT-style license.
 * Visit www.hypik.fr
 */
package org.hypik.webcamlib.test.sample;

import java.util.List;

import org.hypik.webcamlib.DeviceManager;
import org.hypik.webcamlib.device.Device;
import org.hypik.webcamlib.device.IWS;
import org.hypik.webcamlib.device.listener.DeviceErrorListener;
import org.hypik.webcamlib.device.listener.DeviceStatusListener;

import com.sun.jna.Native;
/**
 * This class have only a main method to start all webcam devices found in a webcam preview window.
 * @author  Pierrick Hymbert <a href="mailto:pierrick.hymbert@gmail.com">Contact</a>
 *
 */
public class SimpleTest {
	/**
	 * Start all webcam devices found in a webcam preview window
	 * @param args N/A
	 */
	public static void main(String[] args){
		// Prevent VM crash
		Native.setProtected(true);
		
		// List all devices
		List<Device> devices = DeviceManager.getAllDevices();
		try {
			// Print all device driver name and version
			for (Device device : devices) {
				System.out.println("Found: " + device);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		// Check if at least one device is found
		if( devices.size() == 0 ){
			System.err.println("No device found.");
			System.exit(0);
		}
		
		// Start all webcam preview
		int x = 0, y = 0;
		for (Device device : devices) {
			// Add the listeners
			device.addDeviceErrorListener(errorListener);
			device.addDeviceStatusListener(statusListener);
			// Show preview
			device.showPreview(x, y, 300, 300, IWS.WS_OVERLAPPEDWINDOW | IWS.WS_VISIBLE, device.getName(), 0, 0);
			x += 320;
			if( x > 800 ){
				x = 0;
				y += 320;
			}
		}
		
		// Run all devices loop
		int deviceDisposed = 0;
		while( deviceDisposed < devices.size()){
			deviceDisposed = 0;
			for (Device device : devices) {
				if( !device.isDisposed() ){
					device.readAndDispatch();
				}else{
					deviceDisposed++;
				}
			}
		}		
		System.exit(0);
	}
	/**
	 * The device error listener.
	 */
	private static DeviceErrorListener errorListener = new DeviceErrorListener(){
		/**
		 * Fire the listener that the device throws an error message.
		 * 
		 * @param device
		 *            The device in error state.
		 * @param errorId
		 *            The error id is one of the constants below.
		 * @param errorMessage
		 *            The error message.
		 */
		public void deviceError(Device device, int errorId, String errorMessage) {
			System.err.println(device + "->" + errorId + ": " + errorMessage);
		}
	};
	/**
	 * The device error listener.
	 */
	private static DeviceStatusListener statusListener = new DeviceStatusListener(){
		/**
		 * Fire the listener that the device fire a status message.
		 * 
		 * @param device
		 *            The device in error state.
		 * @param statusId
		 *            The status id is one of the constants below.
		 * @param statusMessage
		 *            The status message.
		 */
		public void deviceStatus(Device device, int statusId, String statusMessage){
			System.out.println(device + "->" + statusId + ": " + statusMessage);
		}
	};
}