Types of actual and formal var parameters must be identical这个错误指什么？

Question

在此句出现：readfile(iu_file,ls_buffer,lu_numbytes,lu_bytesread,lstr_locstruct)

Answer 1

要參照這句代碼的上面的代碼function ReadFile(hFile: THandle; var Buffer; nNumberOfBytesToRead: DWORD;
  var lpNumberOfBytesRead: DWORD; lpOverlapped: POverlapped): BOOL; stdcall;好象說你參數的類型與聲明的不一致

Answer 2

定义如下：var iu_file:integer;
var lu_bytesread,lu_numbytes:integer;
var  ls_buffer:array[1..100]of char;
var lstr_locstruct:Poverlapped;
请问爱的眼睛：这样是否有问题，另外各初始值该如何赋值？谢谢

Answer 3

var iu_file:integer;
 lu_bytesread,lu_numbytes: cardinal; //這里
  ls_buffer:array[1..100]of char;
  lstr_locstruct:Poverlapped;