In some contexts, additional elements may be allowed
by inclusions in parent elements.
Similarly, in some contexts, some of these elements
may be invalid due to exclusions in parent elements.
Attributes
Width
Width indicates the width of the longest line in the element
to which it pertains, in number of characters.
Examples
<INFORMALEXAMPLE ID="EX-1002-5-5">
<PROGRAMLISTING>GC gc1, gc2;
XGCValues values;<LINEANNOTATION>Note capitalization</LINEANNOTATION>
unsigned long valuemask;
.
.
.
/* Open display, create window, etc. */
values.foreground = BlackPixel(display,screen_num);
values.background = WhitePixel(display,screen_num);
gc1 = XCreateGC(display, RootWindow(display, screen_num),
(GCForeground | GCBackground), &values);
values.foreground = WhitePixel(display,screen_num);
values.background = BlackPixel(display,screen_num);
gc2 = XCreateGC(display, RootWindow(display, screen_num),
(GCForeground | GCBackground), &values);
/* Now you can use either gc in drawing routines, thereby
* quickly swapping the foreground and background colors */
</PROGRAMLISTING>
</INFORMALEXAMPLE>