unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
btn1: TButton;
procedure btn1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure Delay(dwMilliseconds:DWORD);//Longint
var
iStart,iStop:DWORD;
begin
iStart := GetTickCount;
repeat
iStop := GetTickCount;
Application.ProcessMessages;
until (iStop - iStart) >= dwMilliseconds;
end;
function myThreadDemo(P:pointer):Longint;stdcall;
var
i :longint;
DC:HDC;
S:String;
begin
DC:=getDC(Form1.Handle);
for i:=0 to 500000 do
begin
S:=inttostr(i);
Delay(100);
Textout(DC,10,10,Pchar(S),length(S));
end;
ReleaseDC(Form1.Handle,DC);
end;
procedure TForm1.btn1Click(Sender: TObject);
var
hthread: THandle; //定义一个句柄
threadid:DWORD;
begin
hthread:=createThread(nil,0,@myThreadDemo,nil,0,threadid);
if hthread =0 then
messagebox(Handle,'DidntCreateaThread',nil,MB_OK);
end;
end.
