Bug 55056 [Workbench] would like to establish my workspace (and no longer be prompted)
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/ChooseWorkspaceDialog.java
launchData.workspaceSelected(currentSelection);
		super.okPressed();
	}
	/**
	 * Notifies that the cancel button of this dialog has been pressed.
	 * <p>
	 * The <code>Dialog</code> implementation of this framework method sets
	 * this dialog's return code to <code>Window.CANCEL</code>
	 * and closes the dialog. Subclasses may override if desired.
	 * </p>
	 */
	protected void cancelPressed() {
		currentSelection = null;
		launchData.workspaceSelected(currentSelection);
		super.cancelPressed();
	}
	private void setTitleImage() {
		try {
			URL installURL = Platform.getPlugin(
					IDEWorkbenchPlugin.IDE_WORKBENCH).getDescriptor()
					.getInstallURL();
			URL url = new URL(installURL, "icons/full/wizban/newfolder_wiz.gif");
			ImageDescriptor desc = ImageDescriptor.createFromURL(url);
			Image image = desc.createImage();
			if (image != null)
				setTitleImage(image);
		} catch (MalformedURLException e) {
			
		}
	}