Control decoration example

boolean isInstalled =/**...**/

Button appBtn = new Button(myComp, SWT.CHECK);

appBtn.setText("Upload to Server");

appBtn.setEnabled(isInstalled);

final ControlDecoration dec = new ControlDecoration(appBtn, SWT.TOP | SWT.RIGHT);

dec.setImage(PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_DEC_FIELD_WARNING));

dec.setDescriptionText("Upload to Server feature is not available on the current plan");

dec.show();