HRESULT CPlayWMV::HandleGraphEvent(void)
{
LONG evCode = 0, evParam1 = 0, evParam2 = 0;
HRESULT hr = S_OK;
// Make sure that we don't access the media event interface
// after it has already been released.
if (!m_pME)
return S_OK;
// Process all queued events
while(SUCCEEDED(m_pME->GetEvent(&evCode, (LONG_PTR *)&evParam1, (LONG_PTR *)&evParam2, 0)))
{
// If this is the end of the clip, reset to beginning
if(EC_COMPLETE == evCode)
{
LONGLONG pos = 0;
// Reset to first frame of movie
hr = m_pMS->SetPositions(&pos, AM_SEEKING_AbsolutePositioning ,
NULL, AM_SEEKING_NoPositioning);
if (FAILED(hr))
{
// If seeking failed, just stop and restart to reset playback
if (FAILED(hr = m_pMC->Stop()))
{
Msg(TEXT("Failed(0x%08lx) to stop media clip!\r\n"), hr);
break;
}
if (FAILED(hr = m_pMC->Run()))
{
Msg(TEXT("Failed(0x%08lx) to reset media clip!\r\n"), hr);
break;
}
}
}
else if(EC_ERRORABORT == evCode)
{
Msg(TEXT("Playback error (EC_ERRORABORT - 0x%08lx). Aborting...\r\n"), evParam1);
if (FAILED(hr = m_pMC->Stop()))
Msg(TEXT("Failed(0x%08lx) to stop media clip!\r\n"), hr);
hr = (HRESULT)evParam1;
break;
}
}
// Free memory associated with callback
if( FAILED(m_pME->FreeEventParams(evCode, evParam1, evParam2)) )
{
CloseClip();
}
return hr;
}
void OpenClip()
{
HRESULT hr;
// If no filename specified by command line, show file open dialog
if(g_szFileName[0] == L'\0')
{
TCHAR szFilename[MAX_PATH];
UpdateMainTitle();
// If no filename was specified on the command line, then our video
// window has not been created or made visible. Make our main window
// visible and bring to the front to allow file selection.
InitPlayerWindow();
ShowWindow(ghApp, SW_SHOWNORMAL);
SetForegroundWindow(ghApp);
if (! GetClipFileName(szFilename))
{
DWORD dwDlgErr = CommDlgExtendedError();
// Don't show output if user cancelled the selection (no dlg error)
if (dwDlgErr)
{
Msg(TEXT("GetClipFileName Failed! Error=0x%x\r\n"), GetLastError());
}
return;
}
// This sample does not support playback of ASX playlists.
// Since this could be confusing to a user, display a warning
// message if an ASX file was opened.
if (_tcsstr((_tcslwr(szFilename)), TEXT(".asx")))
{
Msg(TEXT("ASX Playlists are not supported by this application.\n\n")
TEXT("Please select a valid media file.\0"));
return;
}
lstrcpy(g_szFileName, szFilename);
}
// Reset status variables
g_psCurrent = Stopped;
g_lVolume = VOLUME_FULL;
// Start playing the media file
hr = PlayMovieInWindow(g_szFileName, FALSE);
// If we couldn't play the clip, clean up
if (FAILED(hr) && ( hr != NS_E_LICENSE_REQUIRED ) )
CloseClip();
}
void OpenClip()
{
HRESULT hr;
// If no filename specified by command line, show file open dialog
if(g_szFileName[0] == L'\0')
{
TCHAR szFilename[MAX_PATH];
UpdateMainTitle();
InitPlayerWindow();
SetForegroundWindow(ghApp);
if (! GetClipFileName(szFilename))
{
DWORD dwDlgErr = CommDlgExtendedError();
// Don't show output if user cancelled the selection (no dlg error)
if (dwDlgErr)
{
Msg(TEXT("GetClipFileName Failed! Error=0x%x\r\n"), GetLastError());
}
return;
}
// This sample does not support playback of ASX playlists.
// Since this could be confusing to a user, display a warning
// message if an ASX file was opened.
if (_tcsnicmp(szFilename, TEXT(".asx"), 4) == 0)
{
Msg(TEXT("ASX Playlists are not supported by this application.\n\n")
TEXT("Please select a valid media file.\0"));
return;
}
StringCchCopy(g_szFileName, NUMELMS(g_szFileName), szFilename);
}
// Reset status variables
g_psCurrent = Stopped;
g_lVolume = VOLUME_FULL;
EnableWatermarkMenu(TRUE);
// Start playing the media file
hr = PlayMovieInWindow(g_szFileName);
// If we couldn't play the clip, clean up
if (FAILED(hr))
CloseClip();
}
void OpenClip()
{
HRESULT hr;
// If no filename specified by command line, show file open dialog
if(g_szFileName[0] == L'\0')
{
TCHAR szFilename[MAX_PATH];
InitPlayerWindow();
SetForegroundWindow(ghApp);
if (! GetClipFileName(szFilename))
{
DWORD dwDlgErr = CommDlgExtendedError();
// Don't show output if user cancelled the selection (no dlg error)
if (dwDlgErr)
{
Msg(TEXT("GetClipFileName Failed! Error=0x%x\r\n"), GetLastError());
}
return;
}
// This sample does not support playback of ASX playlists.
// Since this could be confusing to a user, display a warning
// message if an ASX file was opened.
if (_tcsstr((_tcslwr(szFilename)), TEXT(".asx")))
{
Msg(TEXT("ASX Playlists are not supported by this application.\n\n")
TEXT("Please select a valid media file.\0"));
return;
}
lstrcpyn(g_szFileName, szFilename, NUMELMS(g_szFileName));
}
EnableTickerMenu(TRUE);
// Start playing the media file
hr = PlayMovieInWindow(g_szFileName);
// If we couldn't play the clip, clean up
if (FAILED(hr))
CloseClip();
}
LRESULT CALLBACK WndMainProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch(message)
{
case WM_PAINT:
OnPaint(hWnd);
break;
case WM_DISPLAYCHANGE:
if (pWC)
pWC->DisplayModeChanged();
break;
// Resize the video when the window changes
case WM_MOVE:
case WM_SIZE:
if (hWnd == ghApp)
MoveVideoWindow();
break;
// Enforce a minimum size
case WM_GETMINMAXINFO:
{
LPMINMAXINFO lpmm = (LPMINMAXINFO) lParam;
if (lpmm)
{
lpmm->ptMinTrackSize.x = MINIMUM_VIDEO_WIDTH;
lpmm->ptMinTrackSize.y = MINIMUM_VIDEO_HEIGHT;
}
}
break;
case WM_KEYDOWN:
switch(toupper((int) wParam))
{
case VK_ESCAPE:
case VK_F12:
CloseClip();
break;
}
break;
case WM_COMMAND:
switch(wParam)
{ // Menus
case ID_FILE_OPENCLIP:
// If we have ANY file open, close it and shut down DirectShow
CloseClip();
OpenClip(); // Open the new clip
break;
case ID_FILE_INITCLIP:
OpenClip();
break;
case ID_FILE_EXIT:
CloseClip();
PostQuitMessage(0);
break;
case ID_FILE_CLOSE:
CloseClip();
break;
case ID_DISABLE:
FlipFlag(MARK_DISABLE);
DisableTicker(g_dwTickerFlags);
break;
case ID_SLIDE:
FlipFlag(MARK_SLIDE);
SlideTicker(g_dwTickerFlags);
break;
case ID_TICKER_STATIC_IMAGE:
g_dwTickerFlags |= MARK_STATIC_IMAGE;
g_dwTickerFlags &= ~(MARK_DYNAMIC_TEXT);
BlendApplicationImage(ghApp);
CheckMenuItem(ghMenu, ID_TICKER_STATIC_IMAGE, MF_CHECKED);
CheckMenuItem(ghMenu, ID_TICKER_DYNAMIC_TEXT, MF_UNCHECKED);
break;
case ID_TICKER_DYNAMIC_TEXT:
g_dwTickerFlags |= MARK_DYNAMIC_TEXT;
g_dwTickerFlags &= ~(MARK_STATIC_IMAGE);
BlendApplicationText(ghApp, g_szAppText);
CheckMenuItem(ghMenu, ID_TICKER_STATIC_IMAGE, MF_UNCHECKED);
CheckMenuItem(ghMenu, ID_TICKER_DYNAMIC_TEXT, MF_CHECKED);
break;
case ID_SET_FONT:
g_hFont = UserSelectFont(); // Change the current font
PostMessage(ghApp, WM_COMMAND, ID_TICKER_DYNAMIC_TEXT, 0);
break;
case ID_SET_TEXT:
DialogBox(ghInst, MAKEINTRESOURCE(IDD_DIALOG_TEXT),
ghApp, (DLGPROC) TextDlgProc);
break;
case ID_HELP_ABOUT:
DialogBox(ghInst, MAKEINTRESOURCE(IDD_HELP_ABOUT),
ghApp, (DLGPROC) AboutDlgProc);
break;
} // Menus
break;
case WM_GRAPHNOTIFY:
HandleGraphEvent();
break;
case WM_CLOSE:
SendMessage(ghApp, WM_COMMAND, ID_FILE_EXIT, 0);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
} // Window msgs handling
return DefWindowProc(hWnd, message, wParam, lParam);
}
LRESULT CALLBACK WndMainProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch(message)
{
// Resize the video when the window changes
case WM_MOVE:
case WM_SIZE:
if ((hWnd == ghApp) && (!g_bAudioOnly))
MoveVideoWindow();
break;
// Enforce a minimum size
case WM_GETMINMAXINFO:
{
LPMINMAXINFO lpmm = (LPMINMAXINFO) lParam;
lpmm->ptMinTrackSize.x = MINIMUM_VIDEO_WIDTH;
lpmm->ptMinTrackSize.y = MINIMUM_VIDEO_HEIGHT;
}
break;
case WM_KEYDOWN:
switch(toupper((int) wParam))
{
// Frame stepping
case VK_SPACE:
case '1':
StepOneFrame();
break;
// Frame stepping (multiple frames)
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
StepFrames((int) wParam - '0');
break;
case 'P':
PauseClip();
break;
case 'S':
StopClip();
break;
case 'M':
ToggleMute();
break;
case 'F':
case VK_RETURN:
ToggleFullScreen();
break;
case 'H':
InitVideoWindow(1,2);
CheckSizeMenu(wParam);
break;
case 'N':
InitVideoWindow(1,1);
CheckSizeMenu(wParam);
break;
case 'D':
InitVideoWindow(2,1);
CheckSizeMenu(wParam);
break;
case 'T':
InitVideoWindow(3,4);
CheckSizeMenu(wParam);
break;
case VK_ESCAPE:
if (g_bFullscreen)
ToggleFullScreen();
else
CloseClip();
break;
case VK_F12:
case 'Q':
case 'X':
CloseClip();
break;
}
break;
case WM_COMMAND:
switch(wParam)
{ // Menus
case ID_FILE_OPENCLIP:
// If we have ANY file open, close it and shut down DirectShow
if (g_psCurrent != Init)
CloseClip();
// Open the new clip
OpenClip();
break;
case ID_FILE_EXIT:
CloseClip();
PostQuitMessage(0);
break;
case ID_FILE_PAUSE:
PauseClip();
break;
case ID_FILE_STOP:
StopClip();
break;
case ID_FILE_CLOSE:
CloseClip();
break;
case ID_FILE_MUTE:
ToggleMute();
break;
case ID_FILE_FULLSCREEN:
ToggleFullScreen();
break;
case ID_HELP_ABOUT:
DialogBox(ghInst, MAKEINTRESOURCE(IDD_ABOUTBOX),
ghApp, (DLGPROC) AboutDlgProc);
break;
case ID_FILE_SIZE_HALF:
InitVideoWindow(1,2);
CheckSizeMenu(wParam);
break;
case ID_FILE_SIZE_NORMAL:
InitVideoWindow(1,1);
CheckSizeMenu(wParam);
break;
case ID_FILE_SIZE_DOUBLE:
InitVideoWindow(2,1);
CheckSizeMenu(wParam);
break;
case ID_FILE_SIZE_THREEQUARTER:
InitVideoWindow(3,4);
CheckSizeMenu(wParam);
break;
case ID_SINGLE_STEP:
StepOneFrame();
break;
} // Menus
break;
case WM_GRAPHNOTIFY:
HandleGraphEvent();
break;
case WM_CLOSE:
SendMessage(ghApp, WM_COMMAND, ID_FILE_EXIT, 0);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
} // Window msgs handling
// Pass this message to the video window for notification of system changes
if (pVW)
pVW->NotifyOwnerMessage((LONG_PTR) hWnd, message, wParam, lParam);
return DefWindowProc(hWnd, message, wParam, lParam);
}
HRESULT HandleGraphEvent(void)
{
LONG evCode, evParam1, evParam2;
HRESULT hr=S_OK;
// Make sure that we don't access the media event interface
// after it has already been released.
if (!pME)
return S_OK;
// Process all queued events
while(SUCCEEDED(pME->GetEvent(&evCode, (LONG_PTR *) &evParam1,
(LONG_PTR *) &evParam2, 0)))
{
// If this is the end of the clip, reset to beginning
if(EC_COMPLETE == evCode)
{
LONGLONG pos=0;
// Reset to first frame of movie
hr = pMS->SetPositions(&pos, AM_SEEKING_AbsolutePositioning ,
NULL, AM_SEEKING_NoPositioning);
if (FAILED(hr))
{
// Some custom filters (like the Windows CE MIDI filter)
// may not implement seeking interfaces (IMediaSeeking)
// to allow seeking to the start. In that case, just stop
// and restart for the same effect. This should not be
// necessary in most cases.
if (FAILED(hr = pMC->Stop()))
{
Msg(TEXT("Failed(0x%08lx) to stop media clip!\r\n"), hr);
break;
}
if (FAILED(hr = pMC->Run()))
{
Msg(TEXT("Failed(0x%08lx) to reset media clip!\r\n"), hr);
break;
}
}
}
else if(EC_ERRORABORT == evCode)
{
Msg(TEXT("Playback error (EC_ERRORABORT - 0x%08lx). Aborting...\r\n"), evParam1);
if (FAILED(hr = pMC->Stop()))
Msg(TEXT("Failed(0x%08lx) to stop media clip!\r\n"), hr);
hr = (HRESULT) evParam1;
break;
}
else if( EC_WMT_EVENT == evCode )
{
AM_WMT_EVENT_DATA *pEventData = (AM_WMT_EVENT_DATA *)evParam2;
hr = HandleWMTEvent(pEventData, evParam1);
}
}
// Free memory associated with callback
if( FAILED(pME->FreeEventParams(evCode, evParam1, evParam2)) )
{
CloseClip();
}
return hr;
}
LRESULT CALLBACK WndMainProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch(message)
{
case WM_PAINT:
OnPaint(hWnd);
break;
case WM_DISPLAYCHANGE:
if (pWC)
pWC->DisplayModeChanged();
break;
// Resize the video when the window changes
case WM_MOVE:
case WM_SIZE:
if (hWnd == ghApp)
MoveVideoWindow();
break;
// Enforce a minimum size
case WM_GETMINMAXINFO:
{
LPMINMAXINFO lpmm = (LPMINMAXINFO) lParam;
if (lpmm)
{
lpmm->ptMinTrackSize.x = MINIMUM_VIDEO_WIDTH;
lpmm->ptMinTrackSize.y = MINIMUM_VIDEO_HEIGHT;
}
}
break;
case WM_KEYDOWN:
switch(toupper((int) wParam))
{
case 'P':
PauseClip();
break;
case 'S':
StopClip();
break;
case 'M':
ToggleMute();
break;
case VK_ESCAPE:
case VK_F12:
case 'Q':
case 'X':
CloseClip();
break;
}
break;
case WM_COMMAND:
switch(wParam)
{ // Menus
case ID_FILE_OPENCLIP:
// If we have ANY file open, close it and shut down DirectShow
if (g_psCurrent != Init)
CloseClip();
// Open the new clip
OpenClip();
break;
case ID_FILE_EXIT:
CloseClip();
PostQuitMessage(0);
break;
case ID_FILE_PAUSE:
PauseClip();
break;
case ID_FILE_STOP:
StopClip();
break;
case ID_FILE_CLOSE:
CloseClip();
break;
case ID_FILE_MUTE:
ToggleMute();
break;
case ID_FLIP:
FlipFlag(MARK_FLIP);
FlipWatermark(g_dwWatermarkFlags);
break;
case ID_MIRROR:
FlipFlag(MARK_MIRROR);
MirrorWatermark(g_dwWatermarkFlags);
break;
case ID_DISABLE:
FlipFlag(MARK_DISABLE);
DisableWatermark(g_dwWatermarkFlags);
break;
case ID_ANIMATE:
FlipFlag(MARK_ANIMATE);
AnimateWatermark(g_dwWatermarkFlags);
break;
case ID_SLIDE:
FlipFlag(MARK_SLIDE);
SlideWatermark(g_dwWatermarkFlags);
break;
case ID_STROBE:
FlipFlag(MARK_STROBE);
StrobeWatermark(g_dwWatermarkFlags);
break;
case ID_ALL_EFFECTS:
SetAllEffects();
break;
case ID_NO_EFFECTS:
ClearAllEffects();
break;
case ID_HELP_ABOUT:
DialogBox(ghInst, MAKEINTRESOURCE(IDD_ABOUTBOX),
ghApp, (DLGPROC) AboutDlgProc);
break;
} // Menus
break;
case WM_GRAPHNOTIFY:
HandleGraphEvent();
break;
case WM_CLOSE:
SendMessage(ghApp, WM_COMMAND, ID_FILE_EXIT, 0);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
} // Window msgs handling
return DefWindowProc(hWnd, message, wParam, lParam);
}
//
// FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
// PURPOSE: Processes messages for the main window.
//
// WM_COMMAND - process the application menu
// WM_PAINT - Paint the main window
// WM_DESTROY - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc;
switch (message)
{
case WM_SIZE:
ResizeClip ();
break;
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// Parse the menu selections:
switch (wmId)
{
case IDM_ABOUT:
DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
break;
case ID_OPEN_CLIP:
OpenClip();
break;
case ID_CLOSE_CLIP:
CloseClip();
break;
case ID_PAUSE:
PausePlayClip();
break;
case ID_MUTE:
MuteClip();
break;
case ID_SIZE_FULLSCREEN:
FullScreen();
break;
case IDM_EXIT:
DestroyWindow(hWnd);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
break;
case WM_KEYDOWN:
switch(toupper((int) wParam))
{
case 'P':
PausePlayClip();
break;
case 'S':
break;
case 'M':
MuteClip();
break;
case 'F':
case VK_RETURN:
FullScreen();
break;
case 'B':
ClipBegin ();
break;
case 'H':
//InitVideoWindow(1,2);
//CheckSizeMenu(wParam);
break;
case 'N':
//InitVideoWindow(1,1);
//CheckSizeMenu(wParam);
break;
case 'D':
//InitVideoWindow(2,1);
//CheckSizeMenu(wParam);
break;
case 'T':
//InitVideoWindow(3,4);
//CheckSizeMenu(wParam);
break;
case VK_ESCAPE:
if (videoStream.IsValid() && videoStream->IsFullscreen())
{
FullScreen();
}
else
{
CloseClip();
}
break;
case VK_F12:
case 'Q':
case 'X':
CloseClip();
break;
}
break;
case WM_PAINT:
{
if (videoStream.IsValid())
{
//videoStream->Repaint();
}
else
{
hdc = BeginPaint(hWnd, &ps);
// TODO: Add any drawing code here...
RECT rcClient;
//RECT rcToolbar;
GetClientRect(hWnd, &rcClient);
//GetClientRect(toolbar, &rcToolbar);
HRGN hRgn1 = CreateRectRgnIndirect(&rcClient);
//HRGN hRgn2 = CreateRectRgnIndirect(&rcToolbar);
//CombineRgn(hRgn1, hRgn1, hRgn2, RGN_DIFF);
//::PaintRgn(hdc, hRgn2);
FillRgn(hdc, hRgn1, brush);
DeleteObject(hRgn1);
//DeleteObject(hRgn2);
EndPaint(hWnd, &ps);
}
break;
}
case WM_DESTROY:
PostQuitMessage(0);
break;
case DSHOW:
// HandleGraphEvent();
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return FALSE;
}
