I don’t know why, but among all the SWT controls, ScrolledComposite is the most difficult for me. I mean, every time I have to use it, it does not work at the first try.

So, here is a snippet of my own. It completes the usual ones provided by SWT.
It consists in viewing an image in a dialog. If the image is bigger than a given size, then scroll bars appear.

package com.ebmwebsourcing.swt.snippets;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class NewSnippet {

	public static void main( String [] args ) {

		// Display + shell
		Display display = new Display ();
		Shell shell = new Shell( display );
		shell.setLayout( new GridLayout( 2, false ));

		// Load an image
		//ImageData imgData = new ImageData( "your image path" );
		ImageData imgData = new ImageData( "D:/Divers/wallpapers/1920-1200-74378.jpg" );
		Image image = new Image( display, imgData );

		// The scrolled composite
		ScrolledComposite sc = new ScrolledComposite( shell, SWT.H_SCROLL | SWT.V_SCROLL );
		GridData layoutData = new GridData( GridData.FILL_HORIZONTAL );
		layoutData.horizontalSpan = 2;
		layoutData.heightHint = 400;
		sc.setLayoutData( layoutData );

		Label imgLabel = new Label( sc, SWT.NONE );
		imgLabel.setImage( image );
		imgLabel.setSize( imgLabel.computeSize( SWT.DEFAULT, SWT.DEFAULT ));
		sc.setContent( imgLabel );

		Label l = new Label( shell, SWT.NONE );
		l.setText( "Nom actuel :" );
		layoutData = new GridData();
		layoutData.verticalIndent = 20;
		l.setLayoutData( layoutData );

		Text text = new Text( shell, SWT.SINGLE | SWT.BORDER | SWT.READ_ONLY );
		text.setText( "The image name" );
		layoutData = new GridData( GridData.FILL_HORIZONTAL );
		layoutData.verticalIndent = 20;
		text.setLayoutData( layoutData );

		// Run it
		shell.setSize( 800, 600 );
		shell.open();
		while( ! shell.isDisposed()) {
			if( ! display.readAndDispatch())
				display.sleep();
		}

		display.dispose();
		image.dispose();
	}
}

And here are two snapshots of the result.