Thread: wrong pid with GetWindowThreadProcessId?

hi i am using the following functions to get a module handler by a name or by a window title:

Code:

HMODULE getModule(DWORD processID, char* searchStr){ // gets the module by the modul name from an explicit process
	
   HANDLE hProcess;
   HMODULE hMods[1024];
   TCHAR szModName[MAX_PATH];
   DWORD cbNeeded;
	
   if(hProcess = OpenProcess( PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, processID ))
    if(EnumProcessModules(hProcess, hMods, sizeof(hMods), &cbNeeded))
    for(unsigned int k = 0; k < (cbNeeded / sizeof(HMODULE)); ++k )
    	if (GetModuleFileNameEx(hProcess, hMods[k], szModName,  sizeof(szModName)/sizeof(TCHAR)))
    	if(strstr(szModName, searchStr)){
            printf( "pid: &#37;u modname: %s\n", processID, szModName );
            CloseHandle( hProcess );
            return hMods[k];
        }
        
    CloseHandle( hProcess );
    return NULL;
}


HMODULE getModule(char* searchStr){ // gets the module by the modul name from all processes
   DWORD aProcesses[1024], cbNeeded, cProcesses;
	
    if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &cbNeeded ) ) return NULL;
    cProcesses = cbNeeded / sizeof(DWORD);
    
    HMODULE hmodule;
    for (unsigned int i = 0; i < cProcesses; ++i )
    	if(hmodule = getModule(aProcesses[i], searchStr)) return hmodule;
    
    return NULL;
}


HMODULE getModule(HWND hwnd){ // gets the module from a window
   DWORD pid = GetWindowThreadProcessId(hwnd, NULL ); // !!??!!
   printf( "hwnd pid: %u\n", pid  );
   return getModule(pid, ".exe");
}


HMODULE hModuleT;
char* searchStrT;

BOOL CALLBACK shownWindow(HWND hwnd, LPARAM lParam){ // EnumWindows callback
   if(hModuleT) return true;
	
    char pcWinTitle[256];
    
    if(GetWindow(hwnd, GW_OWNER)) return true; // whats that?
    GetWindowText(hwnd, pcWinTitle, 1024);
    if(strstr(pcWinTitle, searchStrT)){  
    	printf( "wndtitle: %s\n", pcWinTitle);                                   	
       	hModuleT = getModule(hwnd);
    }
    
    return true;
}

HMODULE getModuleByWndTitle(char* searchStr){ // gets the module from a window title
    searchStrT = searchStr;
    EnumWindows(shownWindow, 0);
    return hModuleT;
}

but if i run:

Code:

printf("find by name ... \n");
getModule("proton.exe");
printf("\nfind by title ... \n");
getModuleByWndTitle("Proton");

i get this output:

find by name ...
pid: 3564 modname: d:\programme\proton\proton.exe

find by title ...
wndtitle: Proton
hwnd pid: 3568

what does GetWindowThreadProcessId return? is that not the correct process id?