The process accepts the return code of the process end pass

In the project I want to implement a function: a process to create a B process run, through the end of B process to return the error code to carry out the next process.

Referring to some of the online code, the final form of such an absolutely feasible solution. A process:

if (CreateProcess (null,m_file,null,null,true,create_new_process_group| CREATE_DEFAULT_ERROR_MODE,NULL,NULL,&SI,&PI)) {   //Wait until child process exits.  WaitForSingleObject (pi.hprocess, INFINITE);       GetExitCodeProcess (pi.hprocess, &exitcode);  Close process and thread handles.   CloseHandle (pi.hprocess);  CloseHandle (Pi.hthread); if (id_cancel = = ExitCode) break;}

In the B process, send the Wm_quit message via PostQuitMessage (exit), and then get the error code via WPARAM

while (Msg.message!=wm_quit) {if (PeekMessage (&msg, NULL, 0U, 0U, Pm_remove)) {//Handles external message translatemessage (&MSG); DispatchMessage (&msg);} Else{}}}return Msg.wparam;

The process accepts the return code of the process end pass