c++ - QT : How to store all running processes full path of windows in QStringList? -

i need scan running processes of windows 1 one using qt. want store full path of running processes in qstringlist.

i tried code got error crt0_c.c:-1: error: undefined reference `winmain@16' collect2.exe:-1: error: error: ld returned 1 exit status

unsigned long aprocesses[1024], cbneeded, cprocesses;  if (!enumprocesses(aprocesses, sizeof(aprocesses), &cbneeded)) { }  qstringlist lprocess;  cprocesses = cbneeded / sizeof(unsigned long);  (unsigned int = 0; < 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);      closehandle(hprocess);      lprocess << qstring::fromwchararray(buffer); }  ui->listwidget->additems(lprocess); 

you using name main function.

aside that, missing lot of other functions. need add library getmodulefilenameex. needs windows library "psapi.lib" or "libpsapi.a" if using mingw

win32: libs += -lpsapi 

example:

#include <qcoreapplication> #include <qstring> #include <qstringlist> #include <iostream> #include <windows.h> #include <tlhelp32.h> #include <psapi.h>  qstringlist foo() {     qstringlist list;     handle hndl = createtoolhelp32snapshot(th32cs_snapprocess | th32cs_snapmodule, 0);     if (hndl)     {         processentry32  process;         memset(&process, 0, sizeof(processentry32));         process.dwsize = sizeof(processentry32);         process32first(hndl, &process);                 {             qstring qpath;             wchar_t path[max_path] = l"";             handle hprocess = openprocess(                             process_query_information, false, process.th32processid);             if (hprocess)             {                 getmodulefilenameex(hprocess, null, path, max_path);                 qpath = qstring::fromutf16((const ushort*)path);                 closehandle(hprocess);             }             else             {                 qpath = qstring::fromutf16((const ushort*)process.szexefile);             }              list.append(qpath);         } while (process32next(hndl, &process));          closehandle(hndl);     }     return list; } 

usage:

qstringlist list = foo(); for(int = 0; < list.count(); i++) {     //print list[i]...     //or     std::wcout << (const wchar_t*)list[i].utf16() << std::endl; } 

---

running program in admin mode full path:

#include <iostream> #include <windows.h> #include <winbase.h> #include <tlhelp32.h> #include <psapi.h> #include <shlobj.h>  void test() {     if (!isuseranadmin())         std::wcout << "run in admin mode!\n";      void* tokenhandle;     token_privileges privilegetoken;     lookupprivilegevalue(0, se_debug_name, &privilegetoken.privileges[0].luid);     privilegetoken.privilegecount = 1;     privilegetoken.privileges[0].attributes = se_privilege_enabled;     openprocesstoken(getcurrentprocess(), token_adjust_privileges, &tokenhandle);     adjusttokenprivileges(tokenhandle, 0, &privilegetoken, sizeof(token_privileges), 0, 0);     closehandle(tokenhandle);      handle hndl = createtoolhelp32snapshot(th32cs_snapprocess | th32cs_snapmodule, 0);     if (hndl)     {         processentry32  process;         memset(&process, 0, sizeof(processentry32));         process.dwsize = sizeof(processentry32);         process32first(hndl, &process);                 {             wchar_t path[max_path] = l"";             wcscpy_s(path, max_path, process.szexefile);              handle hprocess = openprocess(process_query_limited_information, false, process.th32processid);             if (hprocess)             {                 getmodulefilenameexw(hprocess, 0, path, max_path);                 closehandle(hprocess);             }             else             {                 //in case failed in winxp                 hprocess = openprocess(process_query_information | process_vm_read, false, process.th32processid);                 if (hprocess)                 {                     getmodulefilenameexw(hprocess, 0, path, max_path);                     closehandle(hprocess);                 }             }              std::wcout << path << std::endl;          } while (process32next(hndl, &process));          closehandle(hndl);     } }