The <pixmap></pixmap> defines a static pixmap widget.
<input file></input>The widget must have an input file defined with the
<input file>filename</input> tags. The filename
is the graphic image file for the pixmap. Gtkdialog will load this
file if it can be opened for read, or will try to find a file with
similar name (using the locate utility program) if the file
is unreadable.
The next example defines a static pixmap:
<pixmap> <input file>help.png</input> </pixmap>