// IDC_vw_frame control Picture Control main role is to control the display location of VEDIO WINDOW
Void CPlayWnddlg :: MoveVideoWindow (Void)
{
IvideoWindow * pvideoWinow = NULL;
IF (M_PGRAPH)
{
M_pgraph-> queryinterface (iid_ivideoWindow, (void **) & pvideowinow);
CRECT RC;
Getdlgitem (IDC_VW_FRAME) -> getWindowRect (RC);
ScreenToClient (RC);
PvideoWinow-> SetWindowPosition (rc.left, rc.top, rc.width (), rc.Height ());
PvideoWinow-> Release ();
PvideoWinow = NULL;
}
}
Void CPLAYWNDDLG :: Cleanup (void)
{
Long levcode;
IvideoWindow * pvidwin = null;
IF (! M_PGRAPH)
Return;
m_pgraph-> queryinterface (IID_IVideoWindow, (void **) & pvidwin);
M_PEVENT-> WaitForcompletion (Infinite, & Levcode);
PVIDWIN-> PUT_VISIBLE (OAFALSE);
Pvidwin-> release ();
m_pmediaseeping-> release ();
m_pmediacontrol-> release ();
M_PEVENT-> Release ();
m_pgraph-> release ();
m_pmediaseeking = null;
m_pmediacontrol = null;
m_pevent = NULL;
m_pgraph = NULL;
Updatedata (FALSE);
CclientDC DC (Getdlgitem (IDC_VW_Frame);
Dc.setbkcolor (RGB (0, 0, 0));
CRECT RC;
Getdlgitem (IDC_VW_FRAME) -> getClientRect (RC);
Clienttoscreen (RC);
Dc.FillRect (RC, CBRush :: fromHandle ((Hbrush) GetStockObject (Black_brush));
Invalidate ();
}
Bool CPlayWnddlg :: Stop (void)
{
IvideoWindow * pvidwin = null;
HRESULT HR;
IF (M_PMediaControl)
{
Longlong POS = 0;
HR = m_pmediacontrol-> stop ();
HR = m_pmediaseeking-> setPositions (& POS, am_seeking_absolutepositioning,
& POS, AM_Seeking_nopositioning;
m_pgraph-> queryinterface (IID_IVideoWindow, (void **) & pvidwin);
PVIDWIN-> PUT_VISIBLE (OAFALSE);
m_isplaming = false;
Getdlgitem (IDC_Play_Button) -> EnableWindow (TRUE);
Getdlgitem (IDC_PAUSE_BUTTON) -> EnableWindow (false); pvidwin-> Release ();
Long levcode;
M_PEVENT-> WaitForcompletion (Infinite, & Levcode);
m_pmediacontrol-> release ();
Return True;
}
Return False;
}
Bool CPlayWnddlg :: Play (void)
{
// run
IvideoWindow * pvidwin = null;
IF (M_PGRAPH)
{
m_pgraph-> queryinterface (IID_IVideoWindow, (void **) & pvidwin);
PVIDWIN-> PUT_Visible (OATRUE);
m_pgraph-> queryinterface (IID_IMEDIACONTROL, (Void **) & m_pmediacontrol);
m_pmediacontrol-> run ();
m_isplaming = true;
Getdlgitem (IDC_Play_Button) -> EnableWindow (false);
Getdlgitem (IDC_PAUSE_BUTTON) -> EnableWindow (TRUE);
Return True;
}
Return False;
}
