[comp.windows.x] Problems with List widget

PJS@GROUCH.JPL.NASA.GOV (Peter Scott) (07/23/89)

/* I am having a hell of a time trying to get the list widget to work.  Could
someone please explain why this minimal program listed below core dumps in
XtCreateManagedWidget()? */

#include <stdio.h>
#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include <X11/List.h>

void main (argc, argv)
int argc;
char *argv[];
{
  Widget toplevel;
  static Arg menuargs[] =
  {
    { XtNverticalList, (XtArgVal) TRUE },   /* Innocuous, right? */
  };

  toplevel = XtInitialize ("main", "Demo", NULL, 0, &argc, argv);
  XtCreateManagedWidget ("menu", listWidgetClass, toplevel, menuargs,
    XtNumber (menuargs));
  XtRealizeWidget (toplevel);
  XtMainLoop();
}