VkApp has a new static method, setFallbacks() that you can use to set the fallback resources for an application. The fallback resources provided to the method are passed to XtAppSetFallbackResources() during initialization in the VkApp constructor.
VkApp::quitYourself() now uses the new resource "quitMode" to determine its action after calling okToQuit() on each window. In the past, and by default, the application quits if any of the windows returns TRUE. Now, if "quitMode" is set to "all", the application quits only if all windows agree to exit.
VkComponent::setDefaultResources() now supports an extended syntax (a prepended `+' or `-') that further qualifies the resource string entered in the resource database. This is useful for overriding such things as SGI's resource schemes.
VkSimpleWindow and VkWindow
Get Window method
The getWindow(VkComponent *) method has been added to both the VkSimpleWindow and VkWindow classes. The method returns the VkSimpleWindow/VkWindow (or subclass) object that contains the given VkComponent.