Knowledge Base Nr: 00295 wmpslider.cpp - http://www.swe-kaiser.de

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win32: Windows Media Player Sliderposition setzen und auslesen

  
int CMySocketServer::DoWMPPos(int nNewPosX) //ACHTUNG funzt nur für Windows Media Player!!!!
{
#ifdef _DEBUG	//mediaplayer 10
	HWND hwnd = ::FindWindow(NULL, "Windows Media Player");
#else		//mediaplayer 9
	HWND hwnd = ::FindWindow("WMP Skin Host", "Windows Media Player");
#endif
	TRACE("FindWindow = 0x%p\n", hwnd);
	if (!hwnd)
	{
		ASSERT(FALSE);
		return -1;
	}

	//falls noch nicht geschehen und kein anderes fenster (z.b. debugger):
  HWND hwndOrg = ::GetForegroundWindow();

  BOOL bSucc = ::SetForegroundWindow(hwnd);
	TRACE("SetForegroundWindow = %d\n", bSucc);

	RECT rect;
	bSucc = ::GetWindowRect(hwnd, &rect);
	if (!bSucc)
	{
		ASSERT(FALSE);
		return -5;
	}

    //slider-offsets für beliebige fensterdarstellung mit spy++ ermittelt!
#ifdef _DEBUG 	//mediaplayer 10
	int nStartPosX = rect.left + 41;
	int nMaxPosX = rect.right - 51;
	int nStartPosY = rect.bottom - 60;
	int nMaxPosY = rect.bottom - 50;
#else 	//mediaplayer 9
	int nStartPosX = rect.left + 304;
	int nMaxPosX = rect.right - 305;
	int nStartPosY = rect.bottom - 180;
	int nMaxPosY = rect.bottom - 174;
#endif

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

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

	POINT ptOrg;
  ::GetCursorPos(&ptOrg);

  TRACE("SetCursorPos(%d, %d", nPosX, nPosY);
	::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);

  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
              );
  Sleep(100);

  //alten zustand wiederherstellen
  ::SetForegroundWindow(hwndOrg);
  ::SetCursorPos(ptOrg.x, ptOrg.y);

///////////
	HWND hWndDesktop = HWND_DESKTOP;
	HDC hdc = ::GetDC(hWndDesktop);

  CImageSupport img;

	int nErr = img.Screenshot(hdc, nStartPosX, nStartPosY, nMaxPosX-nStartPosX, nMaxPosY-nStartPosY);
    if (nErr)
	{
		ASSERT(FALSE);
		::ReleaseDC(hwnd, hdc);
		return -6;
	}

	nErr = img.SavePNG("e:\\projects\\internet\\my_home\\kaiserreich\\images\\k_images\\dvdpos.png");
    if (nErr)
	{
		ASSERT(FALSE);
		::ReleaseDC(hwnd, hdc);
		return -7;
	}

	::ReleaseDC(hwnd, hdc);
///////////

  return 0;
}