XtSetArg(3Xt) MIT X11R4 XtSetArg(3Xt)Name
XtSetArg, XtMergeArgLists - set and merge ArgLists
Syntax
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;
Arguments
arg Specifies the name-value pair to set.
args1 Specifies the first
args2 Specifies the second
num_args1 Specifies the number of arguments in the first argument list.
num_args2 Specifies the number of arguments in the second argument list.
name Specifies the name of the resource.
value Specifies the value of the resource if it will fit in an or the address.
Description
The 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 argument list and use
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 can be implemented as a macro that dereferences
the first argument twice.
The function allocates enough storage to hold the combined 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
See AlsoXtOffset(3Xt)
X Window System Toolkit: The Complete Programmer's Guide and Specification, Paul J. Asente and Ralph Swick
X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys
XtSetArg(3Xt)
Check Out this Related Man Page
XtSetArg(3Xt)XtSetArg(3Xt)NAME
XtSetArg, XtMergeArgLists - set and merge ArgLists
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;
ARGUMENTS
Specifies the name-value pair to set. Specifies the first ArgList. Specifies the second ArgList. Specifies the number of arguments in
the first argument list. Specifies the number of arguments in the second argument list. Specifies the name of the resource. Specifies
the value of the resource if it will fit in an XtArgVal or the address.
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 argument 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.
SEE ALSO XtOffset(3Xt)
X Toolkit Intrinsics -- C Language Interface
Xlib -- C Language X Interface
XtSetArg(3Xt)
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