[Qt-interest] How to close a process running on windows !

[Jason H]

Why is this a Qt issue?
Shouldn't you be using QProcess, rather than the raw API?





________________________________
From: Santhosh Y <santhosh at softjin.com>
To: "qt-interest at trolltech.com" <qt-interest at trolltech.com>
Sent: Tue, September 14, 2010 7:20:42 AM
Subject: [Qt-interest] How to close a process running on windows !

Hi, 

This is in context of closing nxdatcom.exe process.

I am able to get the handle to the process in which I am interested in closing, 
but when I call TerminateProcess() it is returning me false.
That means it is not able to terminate the process. Any idea on alternative !

////////////////////////////////////////////////////////////////////////////////////////////////////


    bool isRunning()
    {
        unsigned long aProcesses[1024], cbNeeded, cProcesses;
        if(!EnumProcesses(aProcesses, sizeof(aProcesses), &cbNeeded))
            return false;

        cProcesses = cbNeeded / sizeof(unsigned long);

        for(unsigned int i = 0; i < cProcesses; i++) {
            if(aProcesses[i] == 0)
                continue;

            HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | 
PROCESS_VM_READ, 0, aProcesses[i]);

            wchar_t buffer[50];

            GetModuleBaseName(hProcess, 0, buffer, 50);

            std::string str;
            for (int i=0; i < 50; i++) {
                str.push_back (buffer[i]);
            }
    
            // std::cout << str << std::endl;
            // Able to print  all the exe's running over my machine
            
            if(strcmp(str.c_str(), "nxdatcom.exe") == 0) {

                //CloseHandle(hProcess);
               
               BOOL b = TerminateProcess( hProcess, 0);        // This is 
failing; Any idea on alternative !
               
                if (b == false) {
                   std::cout <<  GetLastError() << std::endl;
                }
                return b;
            }
        }
        return false;
    }

--  ---------------------------------------------------- Y Santhosh Kumar -  
Senior Software Engineer, SoftJin Technologies Pvt Ltd, www.softjin.com 
---------------------------------------------------- 

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