C / C++ / MFC

UINT WINAPI WinExec(
  LPCSTR lpCmdLine,
  UINT uCmdShow
);

Only programmers that are better than C programmers are those who code in 1's and 0's.....

Programm3r

const char *pWndName = "WindowName";
 
// Get a window handle
HWND hWnd = ::FindWindow(NULL, pWndName);
 
// Get the pid of the process that created the window
DWORD ProcessId;
DWORD ThreadId = GetWindowThreadProcessId(hWnd, &ProcessId);
 
// Return the pid
return ProcessId;

Programm3r wrote:

LPDWORD lpdwProcessId;
//return value
int rc;

//get a window handle
hWnd = ::FindWindow(NULL,wndName);

//get the pid of the process that created the window
rc = GetWindowThreadProcessId(hWnd,lpdwProcessId);

	CStringData* GetData() const throw()<br />
	{<br />
<big>---></big>		return( reinterpret_cast< CStringData* >( m_pszData )-1 );<br />
	}

	<br />
HANDLE h_pro;<br />
	HANDLE h_sna;<br />
	PROCESSENTRY32 pe_sen = {0};<br />
<br />
	int result;<br />
	bool returnValue;<br />
	bool counter = false;<br />
<br />
	char* ProcessNames = appName; //Where appName is the name of the application - notepad.exe.<br />
<br />
	h_sna = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);<br />
	if (h_sna == INVALID_HANDLE_VALUE){<br />
		returnValue = false;<br />
		return (returnValue);<br />
	}<br />
<br />
	pe_sen.dwSize = sizeof(PROCESSENTRY32);<br />
<br />
	try{<br />
		if (Process32First(h_sna, &pe_sen))<br />
		{<br />
			do<br />
			{<br />
				h_pro = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pe_sen.th32ProcessID);				<br />
				CloseHandle (h_pro);<br />
<br />
				if (pe_sen.th32ProcessID != 0)<br />
				{<br />
					//compare the name giving with all active processes<br />
					result = strcmp (pe_sen.szExeFile,ProcessNames);<br />
<br />
					if(result > 0){						<br />
						//Not found <br />
						returnValue = false;<br />
					}<br />
					else if (result < 0){						<br />
						//Not Found<br />
						returnValue = false;<br />
					}<br />
					else<br />
					{<br />
						//found occurrence of the process<br />
						globalVariable = pe_sen.th32ProcessID;<br />
						counter = true;<br />
					}<br />
				}<br />
			} while (Process32Next(h_sna, &pe_sen));<br />
		}	<br />
	}<br />
	catch(...)<br />
	{		<br />
		//if any exception occured - return false<br />
		returnValue = false;<br />
	}<br />
<br />
	//testing the return code<br />
	if (counter)<br />
		return counter;<br />
	return returnValue;<br />
<br />
	//close the process handle<br />
	CloseHandle (h_sna);<br />