 Usage:  dlcall ({handle}, n, {x1, x2, ..., x12 })  
 
 Input:

  handle                 scalar (optional), handle of the dll to load the function from. 
                         &nl; If it is omitted in all dlls is searched for the function 
                         
  n                      string, name of function 
                         
  x1...x12               array (optional), argument for the function 
                         
 Output:

  err                    scalar, result from the function 
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
