MFC为窗口创建线程，以及线程与窗口间的通信

1、定义向线程传递的参数类型，例如（可以根据自己的需要来定义）：

struct t_DebugerThreadParam{HWND m_hMainWnd;HWND m_hDebugerWnd;CString* m_pLastFileName;};

2、创建线程，并向线程传递所需参数

//向线程传递的参数

struct t_DebugerThreadParam
{
HWND m_hMainWnd;
HWND m_hDebugerWnd;
CString* m_pLastFileName;
};

//////////////////////////////////////////创建线程并传递参数

t_DebugerThreadParam* pParam = new t_DebugerThreadParam();
pParam->m_hMainWnd = m_hMainWnd;
pParam->m_hDebugerWnd = this->m_hWnd;
pParam->m_pLastFileName = &m_strLastFilePath;

m_hDebugerThreadHandle = (HANDLE)_beginthreadex(NULL,0,&_DebugerThread,(LPVOID)pParam,0,&m_nThreadID);

3、定义并声明一个线程函数：

声明：

static unsigned __stdcall _DebugerThread(LPVOID param);

定义：

unsigned __stdcall CDebugerDlg::_DebugerThread(LPVOID param)
{
t_DebugerThreadParam* pData = (t_DebugerThreadParam*)param;

MSG msg;
CString* pFilePath = pData->m_pLastFileName;
while (CDebugerDlg::s_RunDebugerThread)
{
if(GetMessage(&msg,0,0,0))
{
int* pState = new int();
switch(msg.message)
{
case MSG_2_THREAD_DEBUG_MODEL://切换到debug模式
.....
break;

case MSG_2_THREAD_WORKING_MODEL:

::PostMessage(pData->m_hMainWnd,WM_DESTROY_DEBUGER,0,0);
return 0;

default:
break;

}
}

}

return 0;
}

其中红色部分为线程向窗口发送消息

4、为pData->m_hDebugerWnd窗口定义消息MSG_RES_DEBUG_THREAD及其响应函数_OnDestroyDebuger

在该窗口类的头文件中添加消息定义和消息响应函数的声明：

#define WM_DESTROY_DEBUGER WM_USER +6

afx_msg LRESULT _OnDestroyDebuger(WPARAM wParam,LPARAM lParam);

在该窗口类的cpp文件中添加消息与消息响应函数的映射：

BEGIN_MESSAGE_MAP(CAirMove_mainDlg, CDialog)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_MESSAGE(WM_ICON_NOTIFY,_OnIconNotify)ON_MESSAGE(WM_START_DEBUGER,_OnStartDebuger)ON_MESSAGE(WM_DESTROY_DEBUGER,_OnDestroyDebuger)//}}AFX_MSG_MAPON_WM_WINDOWPOSCHANGING()ON_WM_DESTROY()ON_WM_SHOWWINDOW()ON_COMMAND(WM_START_DEBUGER,OnStarDebugerMenu)ON_COMMAND(WM_HIDE_WORKING_WINDOW,OnHideWorkingMenu)ON_COMMAND(WM_DISPLAY_WORKING_WINDOW,OnDisplayWorkingMenu)END_MESSAGE_MAP()

5、在该窗口类的cpp文件中添加消息响应函数的定义：

//销毁 DebugerLRESULT CMainDlg::_OnDestroyDebuger(WPARAM wParam,LPARAM lParam){.........return  0;}