win32练习-线程挂起

#include "stdafx.h"
#include "SuspendProcess.h"
#include
#include
#include


#define MAX_LOADSTRING 100


PROCESS_INFORMATION pi;
TCHAR list[100];


void SuspendProcess(DWORD dwProcessID,BOOL fSuspend){
HANDLE hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD,dwProcessID);


if(hSnapshot != INVALID_HANDLE_VALUE){


THREADENTRY32 te = {sizeof(te)};
BOOL fOK = Thread32First(hSnapshot,&te);
//MessageBox(NULL,TEXT("傻了吧？"),TEXT("完了吧"),MB_OK);
for(;fOK;fOK = Thread32Next(hSnapshot,&te)){
StringCchPrintf(list,_countof(list),TEXT("%d  %d"),te.th32OwnerProcessID,dwProcessID);
//MessageBox(NULL,list,TEXT(""),MB_OK);
if(te.th32OwnerProcessID == dwProcessID){
HANDLE hThread = OpenThread(THREAD_SUSPEND_RESUME,FALSE,te.th32ThreadID);

//StringCchPrintf(list,_countof(list),TEXT("%d"),hThread);
//MessageBox(NULL,list,TEXT(""),MB_OK);
if(hThread != NULL){
if(fSuspend)
{SuspendThread(hThread);MessageBox(NULL,TEXT("suspend...."),TEXT(""),MB_OK);}
else
ResumeThread(hThread);
}
CloseHandle(hThread);
}
}
}
CloseHandle(hSnapshot);
}


int APIENTRY _tWinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{
UNREFERENCED_PARAMETER(hPrevInstance);
UNREFERENCED_PARAMETER(lpCmdLine);


STARTUPINFO si = {0};
// PROCESS_INFORMATION pi;
TCHAR szCmdline[100]  = TEXT("ping -t localhost");
BOOL bResult = CreateProcess(NULL,szCmdline,NULL,NULL,FALSE,0,NULL,NULL,&si,&pi);
MessageBox(NULL,TEXT("suspend...."),TEXT(""),MB_OK);
SuspendProcess(pi.dwProcessId,TRUE);
Sleep(2000);
if(!bResult){
MessageBox(NULL,TEXT("傻了吧？"),TEXT("完了吧"),MB_OK);
return 0;
}else{
//CloseHandle(pi.hProcess);
//CloseHandle(pi.hThread);
}
//SuspendProcess(pi.dwThreadId,TRUE);
//MessageBox(NULL,TEXT("suspend...."),TEXT(""),MB_OK);
SuspendProcess(pi.dwProcessId,FALSE);
return 0;
}