delphi 调用DLL的问题

Question

各位大虾：
    我用明华的MWIC_32.dll的DES加密，但出现not enough actual parameters错误，请大侠帮帮忙。在线等。
  key:array[0..16]of char;
  source:array[0..16]of char;
  len:smallint;
  dest:array[0..16]of char;    function ic_encrypt(key:pchar;source:pchar;len:smallint;dest:pchar):smallint;stdcall;
    far;external 'MWIC_32.dll'name 'ic_encrypt';。   key:=chr($12)+chr($34)+chr($56)+chr($78)+chr($90)+chr($12)+chr($34)+chr($56);
   len:=16;
   source:=chr($12)+chr($34)+chr($56)+chr($78)+chr($90)+chr($12)+chr($34)+chr($56);
   st:=ic_encrypt(key;source;len;dest);   请大虾帮帮忙，急啊！

Answer 1

__int16 __stdcall ic_encrypt( char *key,char *ptrSource, unsigned short msgLen, char *ptrDest);