XtGetSubresources, XtVaGetSubresources - obtain subresources
#include <X11/Intrinsic.h>
void XtGetSubresources(Widget w, XtPointer base,
    const char *name, const char * class, XtResourceList
    resources, Cardinal num_resources, ArgList args,
    Cardinal num_args);
void XtVaGetSubresources(Widget w, XtPointer
    base, const char *name, const char *class,
    XtResourceList resources, Cardinal num_resources, ...);
  - args
- Specifies the argument list to override resources obtained from the
      resource database.
- base
- Specifies the base address of the subpart data structure where the
      resources should be written.
- class
- Specifies the class of the subpart.
- name
- Specifies the name of the subpart.
- num_args
- Specifies the number of arguments in the argument list.
- num_resources
- Specifies the number of resources in the resource list.
- resources
- Specifies the resource list for the subpart.
- w
- Specifies the widget that wants resources for a subpart or that identifies
      the resource database to search.
- ...
- Specifies the variable arguments to override resources obtained from the
      resource database.
The XtGetSubresources function constructs a name/class list from the
  application name/class, the name/classes of all its ancestors, and the widget
  itself. Then, it appends to this list the name/class pair passed in. The
  resources are fetched from the argument list, the resource database, or the
  default values in the resource list. Then, they are copied into the subpart
  record. If args is NULL, num_args must be zero. However, if num_args is zero,
  the argument list is not referenced.
XtGetApplicationResources, XtVaGetApplicationResources
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface