[MFC] multi-task threads

Instance -- multitestthread

Key header file code:

 

// Multitestthreaddlg. h: header file # define wm_msg wm_user + 1 class program; typedef struct thread_param {cmultitestthreaddlg * pdlg; int nindex;} _ thread_param; uint threadfun (lpvoid pparam );

 

 

Key code of the CPP file:

 

// Multitestthreaddlg. CPP: implementation file cmultitestthreaddlg: cmultitestthreaddlg (cwnd * pparent/* = NULL */): cdialogex (cmultitestthreaddlg: IDD, pparent) {m_hicon = afxgetapp () -> loadicon (idr_mainframe); // member variable // cwinthread * pthread1; // cwinthread * pthread2; // thread_param mthreadparam; // cprogressctrl break; pthread1 = NULL; pthread2 = NULL; mthreadparam. pdlg = NULL;} void cmultites Tthreaddlg: dodataexchange (cdataexchange * PDX) {// member variable // cwinthread * pthread1; // cwinthread * pthread2; // thread_param mthreadparam; // cprogressctrl mpgsctrlone; // cprogressctrl forward; cdialogex: dodataexchange (PDX); ddx_control (PDX, idc_progress_one, mpgsctrlone); ddx_control (PDX, progress, latency);} forward (Direction, cdialogex) on_wm_syscommand () on_wm_paint () on _ Wm_querydragicon () on_bn_clicked (response, & cmultitestthreaddlg: Response) on_bn_clicked (response, & Response: Response) on_bn_clicked (response, & Response: Response) // on_message (wm_msg, & cmultitestthreaddlg: onmsgfun) // replace end_message_map () // Rewrite cdialogex: windowproc () message function lresult cmultitestthreaddlg: windowproc (uint message, wparam, lparam) {If (Message = wm_msg) {If (wparam = 1) {mpgsctrlone. setpos (lparam);} else if (wparam = 2) {mpgrsctrltwo. setpos (lparam) ;}} return cdialogex: windowproc (message, wparam, lparam); // note the cdialogex} // wm_msg message function, on_message (wm_msg, & cmultitestthreaddlg :: onmsgfun) lresult cmultitestthreaddlg: onmsgfu N (wparam, lparam) {If (wparam = 1) {mpgsctrlone. setpos (lparam);} else if (wparam = 2) {mpgrsctrltwo. setpos (lparam) ;}return 0 ;}// the start button 1 button void cmultitestthreaddlg: onbnclickedbuttonstart1 () {If (pthread1! = NULL) {DWORD exitcode = 0; If (: getexitcodethread (pthread1-> m_hthread, & exitcode) {If (exitcode = still_active) {afxmessagebox (L "thread 1 has been started. "); Return ;}} mthreadparam. nindex = 1; mthreadparam. pdlg = This; pthread1 = afxbeginthread (threadfun, & mthreadparam);} // start thread 2 button void cmultitestthreaddlg: onbnclickedbuttonstart2 () {If (pthread2) {DWORD exitcode = 0; if (: getexitcodethread (pthread2-> m_hthread, & exitcode) {If (exitcode = still_active) {afxmessagebox (L "thread 2 has started. "); Return ;}} mthreadparam. nindex = 2; mthreadparam. pdlg = This; pthread2 = afxbeginthread (threadfun, & mthreadparam); // pthread2-> m_bautodelete = false; // when it is false, in the destructor, waitforsingleobject () Deletion thread} // reset button event void cmultitestthreaddlg: onbnclickedbuttonreset () {// terminate thread if (pthread1) {terminatethread (pthread1-> m_hthread, null );} if (pthread2) {terminatethread (pthread2-> m_hthread, null);} // reset the progress bar mpgsctrlone. setrange (0,100); mpgsctrlone. setpos (0); mpgrsctrltwo. setrange (0,100); mpgrsctrltwo. setpos (0);} // The thread function in the format of uint fun (lpvoid pparam) uint threadfun (lpvoid pparam) {thread_param * pthreadparam = (thread_param *) pparam; for (INT I = 0; I <1001; I ++) {if (I % 10 = 0) // send a message when it is a multiple of 10, update the corresponding progress bar {sleep (1); // Delay Time: postmessage (pthreadparam-> pdlg-> m_hwnd, wm_msg, pthreadparam-> nindex, I/10 );}} return 0 ;}

Structure: