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 scrollkey()         Test if ScrollLock is on
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 Declaration
   io.hdr

 Syntax
   func logical scrollkey extern

 Arguments
   None.

 Return
   A logical indicating if Scroll Lock is on.

 Description
   This function returns .t. if the Scroll Lock mode is active.

 Example
   #define EXAMPLE_IO
   #include example.hdr

   proc Test_scrollkey
   clear
   cursor( .f. )
   ? "Press the Scroll Lock key or Esc to finish"
   do while .not. lastkey() == K_ESC
      inkey()
      if scrollkey()
         @ 0, 70 ?? "Scrl"
      else
         @ 0, 70 ?? "    "
      endif
   enddo
   endproc

   proc main
   Test_scrollkey()
   endproc