manual/advanced_topics/viewports/grayscale-conditional.tex

   1 \begin{example}
   2     %?C<%Vd(a)|%Vd(b)>
   3     %Vl(a,10,10,50,50,-)
   4     %Cl(0,0,50,50,c,c)
   5     %Cd
   6     %Vl(a,0,70,70,14,1)
   7     %s%acThere you have it: Album art.
   8     %Vl(b,20,14,50,14,1)
   9     %t(1)%acWarning:;%t(.1)
  10     %Vl(b,20,30,50,50,1)
  11     %sNo album art found
  12     %scheck your filenames.
  13 \end{example}
  14 This example checks for album art. Album art will be displayed in viewport `a', if
  15 it is found. Otherwise a flashing warning will be displayed in viewport `b'.