Bug 77535 Control example coolbar tab uses images in drop down
In the coolbar tab of the ControlExample, enable Item styles "SWT.DROP_DOWN". Now make the coolbar 100x100 so that a chevron is required to see some of the items. On WindowsNT, menus do not support images. When you select the menu from the chevron of the coolbar, it is blank because there are only images in the menu items.
examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/CoolBarTab.java
/**
	 * Gets the text for the tab folder item.
	 */
	String getTabText () {
		return "CoolBar";
	}
	
	/**
	 * Sets the state of the "Example" widgets.
	 */
	void setExampleWidgetState () {
		super.setExampleWidgetState ();
		borderButton.setSelection ((coolBar.getStyle () & SWT.BORDER) != 0);
		flatButton.setSelection ((coolBar.getStyle () & SWT.FLAT) != 0);
		dropDownButton.setSelection ((coolBar.getItem(0).getStyle () & SWT.DROP_DOWN) != 0);
		setWidgetLocked ();
	}
	
	/**
	 * Sets the header visible state of the "Example" widgets.
	 */
	void setWidgetLocked () {
		coolBar.setLocked (lockedButton.getSelection ());
	}
	
	/**
	 * Listens to widgetSelected() events on SWT.DROP_DOWN type ToolItems
	 * and opens/closes a menu when appropriate.
	 */
	class DropDownSelectionListener extends SelectionAdapter {