求救:请问这个错误怎么解决:[Error]:Invalid compiler directive: 'EXTERNAL'
谢谢大侠,帮帮我,总是出现这个错误!代码如下:
program Main;
{$APPTYPE CONSOLE}
uses
Windows,Messages, SysUtils, Variants, Graphics, Controls,
Forms,Classes,Dialogs, ExtCtrls, StdCtrls, Buttons;
var
hHook: integer;
function Sendmessage:bool;external 'user32.dll';
begin
end.