XtSetArg(3Xt)                                       XtSetArg(3Xt)



NAME
     XtSetArg, XtMergeArgLists - set and merge ArgList structures

SYNOPSIS
     XtSetArg(arg, name, value)
     Arg arg;
     String name;
     XtArgVal value;

     ArgList XtMergeArgLists(args1, num-args1, args2, num-args2)
     ArgList args1;
     Cardinal num-args1;
     ArgList args2;
     Cardinal num-args2;

DESCRIPTION
     The XtSetArg function is usually used in a highly stylized
     manner to minimize the probability of making a mistake; for
     example:

        Arg args[20];
        int n;

        n = 0;
        XtSetArg(args[n], XtNheight, 100); n++;
        XtSetArg(args[n], XtNwidth, 200);  n++;
        XtSetValues(widget, args, n);

     Alternatively, an application can statically declare the ar-
     gument list and use XtNumber:

        static Args args[] = {
            {XtNheight, (XtArgVal) 100},
            {XtNwidth, (XtArgVal) 200},
        };
        XtSetValues(Widget, args, XtNumber(args));

     Note that you should not use auto-increment or auto-
     decrement within the first argument to XtSetArg.  XtSetArg
     can be implemented as a macro that dereferences the first
     argument twice.

     The XtMergeArgLists function allocates enough storage to
     hold the combined ArgList structures and copies them into
     it.  Note that it does not check for duplicate entries.
     When it is no longer needed, free the returned storage by
     using XtFree.

   Arguments
     These functions accept the following arguments:

     arg     Specifies the name-value pair to set.



November, 1990                                                  1

XtSetArg(3Xt)                                       XtSetArg(3Xt)



     args1   Specifies the first ArgList.

     args2   Specifies the second ArgList.

     num-args1
             Specifies the number of arguments in the first argu-
             ment list.

     num-args2
             Specifies the number of arguments in the second ar-
             gument list.

     name    Specifies the name of the resource.

     value   Specifies the value of the resource if it will fit
             in an XtArgVal or the address.

SEE ALSO
     XtOffset(3Xt)

     X Toolkit Intrinsics - C Language Interface

     Xlib - C Language Interface

































2                                                  November, 1990