delphi线程的创建、挂起、激活与终止，用绘图做实验，简单又好用

unit Unit1;

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

Dialogs, StdCtrls;

type

TForm1 = class(TForm)

Button1: TButton;

Button2: TButton;

Button3: TButton;

Button4: TButton;

procedure Button1Click(Sender: TObject);

procedure Button2Click(Sender: TObject);

procedure Button3Click(Sender: TObject);

procedure Button4Click(Sender: TObject);

private

{ Private declarations }

public

{ Public declarations }

hThread:Thandle;//定义一个句柄

ThreadID:DWord;

end;

var

Form1: TForm1;

implementation

{$R *.dfm}

function MyThreadFunc(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);

Textout(DC,10,10,Pchar(S),length(S));

end;

ReleaseDC(Form1.Handle,DC);

end;

procedure TForm1.Button1Click(Sender: TObject);

begin

//创建线程，同时线程函数被调用

hthread:=CreateThread(nil,0,@MyThreadfunc,nil,0,ThreadID);

end;

procedure TForm1.Button2Click(Sender: TObject);

begin

SuspendThread(hThread); //挂起线程

end;

procedure TForm1.Button3Click(Sender: TObject);

begin

ResumeThread(hThread); // 激活线程

end;

procedure TForm1.Button4Click(Sender: TObject);

begin

TerminateThread(hThread,0); //　终止线程

end;

end.

http://blog.csdn.net/cmdasm/article/details/10003493