ToolBar toolbar = new ToolBar(section, SWT.NONE);
section.setTextClient(toolbar);

ToolItem item = new ToolItem(toolbar, SWT.PUSH);
item.setImage(myTransparentIcon);

Composite toolbar = new Composite(section, SWT.NO_BACKGROUND);
toolbar.setLayout(new FillLayout(SWT.HORIZONTAL));
section.setTextClient(toolbar);

ImageHyperlink link = new ImageHyperlink(toolbar, SWT.WRAP);
link.setToolTipText(title);
link.addHyperlinkListener(onclick);
link.setImage(image);