XtGetResourceList() - obtain resource list
void XtGetResourceList (WidgetClass class,
XtResourceList *resources_return,
Cardinal *num_resources_return)
If it is called before the widget class is initialized (that is, before the first widget of that class has been created), XtGetResourceList(3) returns the resource list as specified in the widget class record. If it is called after the widget class has been initialized, XtGetResourceList(3) returns a merged resource list that contains the resources for all superclasses.
XtOffset()
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface