C / C++ / MFC

// Get the name of the program that runs on a .pdf file
char *filename = "C:\\src\\IOGuides\\PDF Files\\751018a.pdf";
TCHAR szExe[MAX_PATH];
::FindExecutable(filename, _T(""), szExe);

HANDLE hProcess = NULL; // Use for WaitForInputIdle()
STARTUPINFO startupInfo;
PROCESS_INFORMATION processInfo;
::ZeroMemory(&startupInfo, sizeof(startupInfo));
startupInfo.cb = sizeof(startupInfo);
::ZeroMemory(&processInfo, sizeof(processInfo));  // better safe than sorry

char cmd[MAX_PATH + MAX_PATH + 5];
sprintf(cmd,"\"%s\" \"%s\"", szExe, filename);
BOOL startedOK = CreateProcess(
    NULL,
    cmd,    // "acrord32.exe file.pdf"
    NULL,   // Process security
    NULL,   // Thread security
    FALSE,  // Inheritance
    0,  // no special startup flags
    NULL,   // no special environment
    NULL,   // no default startup directory
    &startupInfo,
    &processInfo);

if(!startedOK)
{
    ShowLastError(filename);
    return;
}

hProcess = processInfo.hProcess;
WaitForInputIdle(hProcess,INFINITE);

BOOL CIOGuidesView::enumwndfn(CWnd * wnd)
{
	WININFO wininfo(wnd);
 
	wnd->GetWindowText(wininfo.title);
 
	DWORD ProcessId; 
	GetWindowThreadProcessId (wnd->GetSafeHwnd(), &ProcessId ); 
	wininfo.Pid = ProcessId;
 
	m_WinInfoArray.Add(wininfo);
 
	return TRUE;
}

void CYourListView::SetTopIndex( int p_iDesiredTopIndex )
{
   CListCtrl & a_roList = GetListCtrl();
   CRect       a_oRect( 0, 0, 0, 0 );
   
   // Get the height of one item.
   a_roList.GetItemRect( 0, &a_oRect, LVIR_BOUNDS );
   
   // Scroll the control vertically, by the amount of height of one item multiplied by the desired top index.
   a_roList.Scroll( CSize( 0, p_iDesiredTopIndex * a_oRect.Height() ) );
}