Bug 272616 GB18030: 4-byte GB18030 displayed as ? in SWT Clipboard RTFTransfer.
examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/clipboard/ClipboardExample.java
if (marginWidth > 0) {
					gc.fillRectangle (rect.width, 0, marginWidth, client.height);
				}
				int marginHeight = client.height - rect.height;
				if (marginHeight > 0) {
					gc.fillRectangle(0, rect.height, client.width, marginHeight);
				}
				gc.dispose();
			}
		}
	});
	Button openButton = new Button(c, SWT.PUSH);
	openButton.setText("Open Image");
	data = new GridData(GridData.FILL_HORIZONTAL);
	data.horizontalAlignment = SWT.CENTER;
	openButton.setLayoutData(data);
	openButton.addSelectionListener(new SelectionAdapter() {
		public void widgetSelected(SelectionEvent e) {
			FileDialog dialog = new FileDialog (shell, SWT.OPEN);
			dialog.setText("Open an image file or cancel");
			String string = dialog.open ();
			if (string != null) {
				if (copyImage[0] != null) {
					System.out.println("CopyImage");
					copyImage[0].dispose();
				}
				copyImage[0] = new Image(e.display, string);
				copyVBar.setEnabled(true);
				copyHBar.setEnabled(true);
				copyOrigin.x = 0; copyOrigin.y = 0;