Java tutorial
package com.google.gwt.html5.client; import com.google.gwt.core.client.JavaScriptObject; /** * Array-like object holding the actual image data for an ImageData object. For each pixel, * this object contains a red, green, blue and alpha value between 0 and 255 (in this order). * Note that we use ints here to represent the data to avoid complexities stemming from * bytes being signed in Java. */ public class CanvasPixelArray extends JavaScriptObject { protected CanvasPixelArray() { } /** * Returns the data value at position i. */ public final native int get(int i) /*-{ return this[i]; }-*/; /** * Sets the data value at position i to the given value. The value will be clamped to * the range 0..255. */ public final native void set(int i, int value) /*-{ this[i] = value; }-*/; }