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====9.6 Refresh image====
Gtkdialog can refresh an image in a ##<pixmap>## widget without restarting the gui. Since the ##<input file>## is static, we must change its content (by copy another file), and then refresh.

%%(language-ref)
export MAIN='
<window>
 <pixmap>
  <variable>IMAGE</variable>
  <input file>/root/image1.png</input>
 </pixmap>
 <button>
  <label>Change image</label>
   <action>cp -f /root/image2.png /root/image1.png</action>
   <action type="refresh">IMAGE</action>
  </button>
</window>'

gtkdialog --center --program=MAIN
%%

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