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 getsetconfirm()     Get and set the confirm flag
------------------------------------------------------------------------------
 Declaration
   getset.hdr

 Syntax
   func logical getsetconfirm extern
   param value logical lOn

 Arguments
   lOn is the new setting for the flag.

 Return
   A logical indicating the previous setting of the respective system flag.

 Description
   The getsetconfirm() function sets the confirm flag and returns its
   previous setting.

 Example
   #define EXAMPLE_IO
   #include example.hdr

   proc Test_getsetconfirm
   vardef
      logical lConfirm
   enddef
   lConfirm := getsetconfirm( .t. )
   ? lConfirm                         // prints .f.
   ? getsetconfirm( lConfirm)         // prints .t.
   ? getconfirm()                     // prints .f.
   endproc

   proc main
   Test_getsetconfirm()
   endproc