XVaCreateNestedList - allocate a nested variable argument list

dummy     Specifies an unused argument (required by ANSI C).

       ...       Specifies the variable length argument list.

       The  XVaCreateNestedList  function  allocates memory and copies its arguments into a single list pointer,
       which may be used as a value for arguments requiring a list value.  Any entries are copied as  specified.
       Data passed by reference is not copied; the caller must ensure data remains valid for the lifetime of the
       nested list.  The list should be freed using XFree when it is no longer needed.

       XVaCreateNestedList - allocate a nested variable argument list

Xlib-CLanguageXInterface

X Version 11                                      libX11 1.8.12                           XVaCreateNestedList(3)

       typedef void * XVaNestedList;

       XVaNestedList XVaCreateNestedList(int dummy, ...);