integration of webcam

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January 5, 2009 at 7:01 AM

Hi friend,

import java.awt.*;

import java.applet.*;

import java.net.*;

public class JavaCam extends Applet implements Runnable{

boolean boolean_Debug;

Image image_WebcamImage;

Thread thread_This;

int int_Interval;

public static void main(String args[]) {

System.out.println("Webcam32's JavaCam: V1.1");

}

public void trace(String message) {

if (boolean_Debug){
System.out.println(message);

}

}

public void destroy() {

trace("Applet.destroy() called");

thread_This.stop();

}

public void start() {

trace("Start called");

thread_This.resume();

}

public void stop(){

trace("Stop called");

thread_This.suspend();

}

public void run(){
trace("run(): Thread started!");
while (true){
try{
// Put the refresh thread to sleep for the supplied interval
Thread.sleep(int_Interval*1000);
trace("Flushing image");
// Flush the image in the image buffer so we get a new one
image_WebcamImage.flush();
// Track the image and wait till its loaded
MediaTracker mt = new MediaTracker(this);
mt.addImage(image_WebcamImage, 1);
mt.waitForID(1);
// Repaint the image
repaint();
}
catch (Exception e){
trace("Caught:"+e.toString());
}
}

}

January 5, 2009 at 7:02 AM

public void init() {

String string_Url;

URL url_Webcam;

int int_Port;

boolean_Debug = false;

if (getParameter("Trace") != null) {

boolean_Debug = true;

}

trace("Init called");
string_Url = getParameter("URL");

if (string_Url == null) {
showStatus("No URL for Webcam32 image supplied");
return;

}

try{
int_Interval = Integer.parseInt(getParameter("Interval"));

}

catch (Exception e){

int_Interval = 30;

}

trace("Refresh interval="+int_Interval);

try{

url_Webcam = new URL("logo.jpg");
//url_Webcam = new URL(string_Url);

trace("Target URL="+"logo.jpg".toString());

image_WebcamImage = getImage(url_Webcam);

MediaTracker mt = new MediaTracker(this);

mt.addImage(image_WebcamImage, 1);

mt.waitForID(1);

}

catch(Exception e){

trace("Image get exception:"+e.toString());

showStatus("Problem getting initial image: "+e.toString());

return;

}

thread_This = new Thread(this);

thread_This.suspend();

thread_This.start();

}

public void paint(Graphics g){

trace("paint()");

if (image_WebcamImage != null) {
g.drawImage(image_WebcamImage, 0,0, this);
}
}
}

January 5, 2009 at 7:04 AM

<HTML>
<BODY>
<div align = "center">
<APPLET code="JavaCam.class" width=320 height=240>
<PARAM name="url" value="logo.jpg">
<PARAM name="interval" value="10">
</APPLET>
</div>
</BODY>
</HTML>

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Visit for more information:

http://www.roseindia.net/java/example/java/applet/

Thanks.