Question

如何在线程程序外部彻底杀掉一个线程？

CloseHandle和TerminateThread貌似都不行

Answer 1

这个我试过，跟中止进程类似，用API：
     1.取线程中止码：GetExitCodeThread((void *)thread->Handle,&ExitCode);
     2.强行中止:  TerminateThread((void *)thread->Handle,ExitCode);
如此而已
       

            这是一个死循环线程：
__fastcall MyThread::MyThread(bool CreateSuspended)
        : TThread(CreateSuspended)
{
}
//---------------------------------------------------------------------------
extern int js;
void __fastcall MyThread::Execute()
{
        //---- Place thread code here ----
       while (true)
          js++;      // 死循环,不停地计数
}
======================================================
//下面是主程序：
#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
#include "Unit2.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
int js=0;         // 全局变量 js
MyThread *thread=NULL;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Timer1Timer(TObject *Sender)
{
       Edit1->Text=js;   // 时钟不断显示js值
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)  // 运行线程
{
       if (thread==NULL)
          {
            thread= new MyThread(true);   
            thread->Priority =tpHigher;
            thread->Resume();     // 线程运行
          }
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)  // 中止线程
{
    if (thread!=NULL)
       {
           unsigned long ExitCode;
           if (!GetExitCodeThread((void *)thread->Handle,&ExitCode))
               ShowMessage("得不到退出码，中止失败!");
           else
               {
                  if (TerminateThread((void *)thread->Handle,ExitCode))
                    {
                       delete thread;
                       thread=NULL;
                    }
                  else
                       ShowMessage("中止失败!");
               }
       }
}

中止线程后，Edit1的值就不再变化

追问

TerminateThread不会释放线程占用的内存啊