variable scope Post: 302334377

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xtsetarg

XtSetArg(3Xt)							   XT FUNCTIONS 						     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 ArgList.

       args2	 Specifies the second ArgList.

       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 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

X Version 11							    Release 6.6 						     XtSetArg(3Xt)

10 More Discussions You Might Find Interesting

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C++ variable scope and mutexes

Discussion started by: Corona688

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scope of the variable - Naga

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scope of a Variable inside shell script

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