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import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.Display;
import com.nokia.mid.ui.DirectUtils;

public class GraphicsCanvas extends Canvas implements Runnable
{
Image source;
Image copy;
Thread myThread;
Runtime runtime = Runtime.getRuntime();
boolean running=true;


public GraphicsCanvas()
{
try
{
source=Image.createImage("/monkey.png");

}

catch(Exception e)
{
System.err.println("error on loading monkey.png");
}

try
{
copy=DirectUtils.createImage(source.getWidth(),source.getHeight(),0xFF<<24|0xFF<<16|0xFF<<8|0xFF);
}

catch(Exception e)
{
System.out.println(e);
}

if(copy==null) System.out.println("copy is null");

Graphics temp=copy.getGraphics();

temp.drawImage(source,0,0,Graphics.LEFT);



}

public void start()
{

myThread=new Thread(this);
myThread.start();

}

public void run()
{
while(running)
{
repaint();

try{
Thread.sleep(33);
}
catch(Exception e)
{
}



}

}

public void paint(Graphics g)
{
g.setColor(126,126,126);
g.fillRect(0,0,getWidth(),getHeight());
g.drawImage(source,getWidth()/2,getHeight()/2, Graphics.TOP|Graphics.HCENTER);
g.drawImage(copy,getWidth()/2,0, Graphics.TOP|Graphics.HCENTER);

}

}

The monkey.png image is transparent background, I just copy source monkey to copy monkey, since midp 1.0 does not support transparent image copy. then I use Nokia s40 API, but I dont know even I only copy=DirectUtils.createImage(source.getWidth(),source.getHeight(),0xFF<<24|0xFF<<16|0xFF<<8|0xFF);
but copy always is null. why? this code should not be problem. and try catch can not print any error. is there a bug?

Thanks for tell me the result.