Knowledge Base Nr: 00234 windvdpos.cpp - http://www.swe-kaiser.de

Win32: WinDVD Filmposition von C-Programm setzen (Fenster(Slider) suchen und mit Maus fernbedienen)

  
#define DVDPLAYERCLASS "WinDVDClass"
#define DVDPLAYERWNAME "player"

int g_nSearchCount = 0;
HWND g_hwndSearch = 0;

void CCursortestDlg::OnButton2()
{
////windvd-fenster suchen und in den vordergrund schicken
  HWND hwnd = ::FindWindow(DVDPLAYERCLASS, DVDPLAYERWNAME);
  DoLog("FindWindow = 0x%p", hwnd);
  if (!hwnd)
  {
    ASSERT(FALSE);
    return;
  }

  BOOL bSucc = ::SetForegroundWindow(hwnd);
  DoLog("SetForegroundWindow = %d", bSucc);
  if (!bSucc)
  {
    ASSERT(FALSE);
    return;
  }

///slidercontrol für filmposition suchen (player muss eingeschaltet sein)
  g_nSearchCount = 1;
  g_hwndSearch = 0;
  bSucc = EnumChildWindows(hwnd, MyEnumChildProc, (long)(void*)"AfxOleControl42###");
  if (!g_hwndSearch)
  {
    ASSERT(FALSE);
    return;
  }

  hwnd = g_hwndSearch;
  g_nSearchCount = 3;
  g_hwndSearch = 0;
  bSucc = EnumChildWindows(hwnd, MyEnumChildProc, (long)(void*)"*###CSLDWND");
  if (!g_hwndSearch)
  {
    ASSERT(FALSE);
    return;
  }

////fenstergröße und position des sliders ermitteln

/*
  mit winspy ermittelt:
    child: 1.class:"AfxOleControl42"
    child: 3.title: "CSLDWND"
       54,660,455,670 -> 401,10

  WINDOWPLACEMENT wp;
  wp.length = sizeof(WINDOWPLACEMENT);
  bSucc = ::GetWindowPlacement(g_hwndSearch, &wp);
*/

  RECT rect;
  bSucc = ::GetWindowRect(g_hwndSearch, &rect);
  if (!bSucc)
  {
    ASSERT(FALSE);
    return;
  }

  int nStartPosX = rect.left;
  int nMaxPosX = rect.right;
  int nStartPosY = rect.top;
  int nMaxPosY = rect.bottom;

  int nWidthX = nMaxPosX-nStartPosX;
  int nPosY = nStartPosY + ((nMaxPosY-nStartPosY)/2);

  CString strPosX;
  GetDlgItem(IDC_EDIT3)->GetWindowText(strPosX);

  int nNewWidth = ((0.0+nWidthX)/100.0) * atoi(strPosX);
  int nPosX = nStartPosX + nNewWidth;
  if (nPosX >= nMaxPosX)
    nPosX = nMaxPosX-1;

////maustaste drücken, gedrückt halten und vorm loslassen leicht versetzen (windvd positioniert sonst nicht absolut)
  ::SetCursorPos(nPosX, nPosY);

  mouse_event(MOUSEEVENTF_LEFTDOWN,         // motion and click options
                0,              // horizontal position or change
                0,              // vertical position or change
                0,          // wheel movement
                NULL  // application-defined information
              );

  Sleep(100);
  ::SetCursorPos(nPosX+2, nPosY);

  mouse_event(MOUSEEVENTF_LEFTUP,         // motion and click options
                0,              // horizontal position or change
                0,              // vertical position or change
                0,          // wheel movement
                NULL  // application-defined information
              );
}

BOOL CALLBACK CCursortestDlg::MyEnumChildProc(HWND hwnd, LPARAM lParam)
{
  char szClass[100] = {0};
  char szText[100] = {0};

  ::GetClassName(hwnd, szClass, sizeof(szClass));
  ::GetWindowText(hwnd, szText, sizeof(szText));
  TRACE("\nwnd:0x%p lparam:%s class:%s wndtext:%s", hwnd, lParam, szClass, szText);

  char szSearch[200] = {0};
  CString str((const char*)lParam);
  int nDelim = str.Find("###");
  ASSERT(nDelim >= 0);

  if (str[0] == '*')  //alle klassen
  {
    if (nDelim+3 >= str.GetLength())  //kein name
      sprintf(szSearch, "*###%s", szText);
    else if (str[nDelim+3] == '*')  //alle namen
      sprintf(szSearch, "*###*");
    else
      sprintf(szSearch, "*###%s", szText);
  }
  else
  {
    if (nDelim+3 >= str.GetLength())  //kein name
      sprintf(szSearch, "%s###%s", szClass, szText);
    else if (str[nDelim+3] == '*')  //alle namen
      sprintf(szSearch, "%s###*", szClass);
    else
      sprintf(szSearch, "%s###%s", szClass, szText);
  }

  if (strcmp((const char*)lParam, szSearch) == 0)
  {
    TRACE("  ==> hit (%d)!", g_nSearchCount);
    if (--g_nSearchCount <= 0)
    {
      TRACE("  ==> found&exit!", g_nSearchCount);
      g_hwndSearch = hwnd;
      return FALSE;
    }
  }

  return TRUE;
}