Bug 20556 ImageAnalyzer example - bug in the set background
build 20020617 1 - Run the ImageAnalyzer found on org.eclipse.swt.examples. 2 - In the Background Combo choice a different Color 3 - the canvas on center will not changed its background color, only the scrollbar will. The bug is on examples, though this is working properly on Windows. A possible fix is remove imageCanvas.fillRectangle(...) call from the changeBackground() method. Maybe we should fix this to F4..
examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/imageanalyzer/ImageAnalyzer.java
if (new java.io.File(filename).exists()) {
			MessageBox box = new MessageBox(shell, SWT.ICON_QUESTION | SWT.OK | SWT.CANCEL);
			box.setMessage(createMsg(bundle.getString("Overwrite"), filename));
			if (box.open() == SWT.CANCEL)
				return;
		}
		
		Cursor waitCursor = new Cursor(display, SWT.CURSOR_WAIT);
		shell.setCursor(waitCursor);
		imageCanvas.setCursor(waitCursor);
		try {
			
			ImageData maskImageData = imageData.getTransparencyMask();
			loader.data = new ImageData[] {maskImageData};
			loader.save(filename, filetype);
			
		} catch (SWTException e) {
			showErrorDialog(bundle.getString("Saving_lc"), filename, e);
		} finally {
			shell.setCursor(null);
			imageCanvas.setCursor(crossCursor);
			waitCursor.dispose();
		}
	}
	void menuPrint() {
		if (image == null) return;
		try {
			
			PrintDialog dialog = new PrintDialog(shell, SWT.NULL);