TerminateProcess（）不会关闭应用程序

Question

I am trying to use the TerminateProcess to terminate an app launched by ShellExecuteEX like this:

SHELLEXECUTEINFO ExecuteInfo;
ExecuteInfo.fMask = SEE_MASK_FLAG_NO_UI; /* Odd but true */
ExecuteInfo.hwnd = NULL;
ExecuteInfo.cbSize = sizeof(ExecuteInfo);
ExecuteInfo.lpVerb = NULL;
ExecuteInfo.lpFile = "http://www.microsoft.com";
ExecuteInfo.lpParameters = "";
ExecuteInfo.lpDirectory = NULL;
ExecuteInfo.nShow =  SW_SHOW;;
ShellExecuteEx(&ExecuteInfo);
//WaitForSingleObject(ExecuteInfo.hProcess, 0);
Sleep(4000);
TerminateProcess(ExecuteInfo.hProcess, 0);

IE gets opened but it never closes. Am I doing something wrong?

Answer 1

According to MSDN , fMask must be set to SEE_MASK_NOCLOSEPROCESS for .hProcess to get set. I would add a test to see if it is NULL. As a side note I've always had better luck using CreateProcess .

Edit:

This is how you do it using CreateProcess:

PROCESS_INFORMATION pi = {0};
STARTUPINFO si = {0};
si.cb = sizeof(si);
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = SW_SHOW;


CreateProcess(  NULL,
                "C:\\Program Files\\Internet Explorer\\iexplore.exe http://www.google.com/",
                NULL,
                NULL,
                FALSE,
                NORMAL_PRIORITY_CLASS,
                NULL,
                NULL,
                &si,
                &pi );


Sleep(4000);
TerminateProcess(pi.hProcess, 0);

You should add error-checking and could query the path of the default browser using: AssocQueryString like this: AssocQueryString(0,ASSOCSTR_EXECUTABLE,"http","open", szExe, &cchExe);

Answer 2

You can get more information by checking the returned hProcess (eg, in a debugger). Also make sure you have the SEE_MASK_NOCLOSEPROCESS flag set.

But my psychic powers say: Opening an IE document doesn't necessarily create a new process. And, if it does, it may not be the one you think it is: The process you may have created may have spawned yet another process to actually host the document. Raymond Chen mentions that about halfway down this blog post .