C / C++ / MFC

26-Sep-06 23:41

I've created a Dialog based application that records audio(using DirectX of course) and changes the header of the audio file so that I get a file that is not playable by a regular player. Now,within my application itself,when I want to playback the said file,I decode the file to a "temp" with no extension and play it back. However I cant seem to delete the file either when I exit the application or when it finishes playing.
I believe my application isnt letting go of the file when it finishes playing it despite the fact that I set all the DirectX interfaces to NULL(I tried to delete the file manually after it finished playing and got an "Access Denied" error)

Any suggestions anybody??

Thank You

Rinu_Raj26-Sep-06 23:56

26-Sep-06 23:56

Try calling DeleteFile(..) in your class's destructor

Rinu Raj

RahulOP27-Sep-06 0:02

27-Sep-06 0:02

I'd try that IF i was exiting the application. But if I'm fooling around by recording and then repeatedly playing back,I'd like to be able to delete the file each time it finishes playing.

Thanks for your suggestion though.Really appreciate it Smile | :)

Rinu_Raj27-Sep-06 0:16

27-Sep-06 0:16

You are creating a temp file right ?
Close the file handle of the temp file
then try DeleteFile(..)
it will work

Rinu Raj

Rinu Raj

RahulOP27-Sep-06 0:25

27-Sep-06 0:25

Umm, I tried that too but it doesnt work.

What I am doing is using pGraph->RenderFile(abc,NULL);

Rinu_Raj27-Sep-06 0:32

27-Sep-06 0:32

will you paste the code you closing the handle of hile and removing file

Rinu Raj

RahulOP27-Sep-06 2:03

27-Sep-06 2:03

	HRESULT res;<br />
	IMediaControl *pMediaControl;<br />
	IMediaEventEx *pEvent;<br />
	if(pGraph==NULL)<br />
	{<br />
		CMainDlg *parent=(CMainDlg *)AfxGetApp()->GetMainWnd();<br />
		//CoInitialize(NULL);<br />
		HRESULT hr = CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER, <br />
                    IID_IGraphBuilder, (void **)&pGraph);<br />
<br />
		if(hr==S_OK)<br />
		{<br />
			pGraph->QueryInterface(IID_IMediaControl, (void **)&pMediaControl);<br />
			pGraph->QueryInterface(IID_IMediaEventEx,  (void **)&pEvent);<br />
		//	pEvent->SetNotifyWindow ((OAHWND)hwnd,WM_PLAYER_ENDOFMEDIA,NULL);<br />
			USES_CONVERSION;<br />
			<br />
			<br />
<br />
//temp=parent->m_strAppPath+"\\home\\"+parent->m_strUserName+"\\videofiles\\"+GetFileName("");<br />
						<br />
					if(DecodeMediaHeaderWithCopy(fileName,"temp"))<br />
				{<br />
					res=pGraph->RenderFile(A2W("temp"), NULL);<br />
					pGraph->QueryInterface(IID_IMediaSeeking,(void <br />
<br />
**)&g_pSeek);<br />
					<br />
				<br />
				}<br />
				else<br />
					res=pGraph->RenderFile(A2W(fileName), NULL);<br />
			<br />
			//res=pGraph->RenderFile(A2W(fileName),NULL);<br />
			if(res!=S_OK)<br />
			{<br />
				pMediaControl->Release ();<br />
				pEvent->Release();<br />
				return FALSE;<br />
			}<br />
			pMediaControl->Run ();<br />
			pMediaControl->Release ();<br />
			pEvent->Release();<br />
			<br />
			if(FileExists("C:\\Executable\\dxh263\\temp"))<br />
			{<br />
				CFile m_File;<br />
				<br />
<br />
if(!m_File.Open("C:\\Executable\\dxh263\\temp",CFile::modeRead,NULL))<br />
					AfxMessageBox("notexs");<br />
				//m_File.SeekToEnd();<br />
				m_File.Close();<br />
<br />
			}<br />
		}<br />
		else<br />
			return FALSE;<br />
	}<br />
	return TRUE;<br />
}<br />
<br />
<br />
void CMPlayer::StopPlay ()<br />
{<br />
	IMediaControl *pMediaControl;<br />
	IMediaEventEx *pEvent;<br />
	if(pGraph==NULL)<br />
		return;<br />
	else<br />
	{<br />
		pGraph->QueryInterface(IID_IMediaControl, (void **)&pMediaControl);<br />
		pMediaControl->Stop ();<br />
		pMediaControl->Release ();<br />
		pGraph->QueryInterface(IID_IMediaEventEx,  (void **)&pEvent);<br />
		pEvent->SetNotifyWindow ((OAHWND)NULL,WM_PLAYER_ENDOFMEDIA,NULL);<br />
		pEvent->Release ();<br />
		pGraph->Abort();<br />
		pGraph->Release ();	<br />
		pGraph=NULL;<br />
		pMediaControl=NULL;	<br />
		pEvent=NULL;<br />
				<br />
	}<br />
	::DeleteFile("C:\\Executable\\dxh263\\temp");<br />
}<br />

Re: about ComboBox problem [modified]

GudduRanchi27-Sep-06 3:46

GudduRanchi

27-Sep-06 3:46

I think the file you have opened didnot get closed so First close the file using CloseHandle or fclose.

about ComboBox problem

rxgmoral26-Sep-06 23:20

rxgmoral

26-Sep-06 23:20

about ComboBox problem

<<<<<<<dialog.h>>>>>>>>
.........
public:
CComboBox Cbx;
struct Data
{
LPCTSTR lpszName;
LPCTSTR lpszValue;
int ID;
};

<<<<<<<dialog.cpp>>>>>>>
Data d;
d.lpszName=_T("Name");
d.lpszValue=_T("Value");
d.ID=1;
Cbx.InsertString(0,d.lpszName);
Cbx.SetItemDataPtr(0,(void *)d);

how to struct data append to ComboBox Control,thank Smile | :)

prasad_som26-Sep-06 23:24

prasad_som

26-Sep-06 23:24

rxgmoral wrote:
Data d;
d.lpszName=_T("Name");
d.lpszValue=_T("Value");
d.ID=1;
Cbx.InsertString(0,d.lpszName);
Cbx.SetItemDataPtr(0,(void *)d);

you need to create d on heap.

And for obvious reasons, need to delete it after use.

-- modified at 7:59 Wednesday 27th September, 2006

Prasad
Notifier using ATL | Operator new[],delete[][^]

CFileDialog

si_6926-Sep-06 23:03

si_69

26-Sep-06 23:03

Hi
I am using CfileDialog, but i cant get it to display pointing to the correct directory

it seems to ignore the path that i pass

im using

TCHAR szFilters[] = _T ("Log Files (*.txt)|*.txt|All files (*.*)|*.*||");
CFileDialog dlg(TRUE, _T ("txt"), _T ("*.txt"),NULL, szFilters);
CString MyPath "c:\";
if (logPath.GetLength())
dlg.GetOFN().lpstrInitialDir = MyPath;

if (dlg.DoModal()==TRUE)
{
CString result = dlg.GetPathName();
ShellExecute(NULL, "Open", _T(result), NULL, NULL, SW_SHOW);
}

can anyone help

thanks

simon

Rajesh R Subramanian26-Sep-06 23:07

Rajesh R Subramanian

26-Sep-06 23:07

Try CString MyPath = "C:\\"

"There are those who confuse bad management with fate"

si_6926-Sep-06 23:22

si_69

26-Sep-06 23:22

brahmma wrote:
Try CString MyPath = "C:\\"

have already tried that, no joy Frown | :-(

toxcct27-Sep-06 0:26

toxcct

27-Sep-06 0:26

did you read my answer ?

does it provide much help ?

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Re: CFileDialog [modified]

Hamid_RT28-Sep-06 9:18

Hamid_RT

28-Sep-06 9:18

You can use from Data Member m_ofn In CFileDialog that you have access to parameters of dialogbox

WhiteSky

toxcct26-Sep-06 23:09

toxcct

26-Sep-06 23:09

String MyPath "c:\"; is invalid. '\' is the escape character, so if you want to print a \, you must specify '\\'

CString MyPath = "C:\\";

One last thing. if (dlg.DoModal()==TRUE) is not syntactically correct. CDialog::DoModal() doesn't return a BOOL (TRUE or FALSE). it returns the exit code specified in the dialog with the call to CDialog::EndDialog(). In general, it is the ID of the buttons pressed, so you should test your CFileDialog with either IDOK or IDCANCEL.

if (dlg.DoModal() == IDOK)

-- modified at 9:30 Wednesday 27th September, 2006

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Rinu_Raj26-Sep-06 23:10

26-Sep-06 23:10

I think you are using OS XP or 2000, then try

dlg.GetOFN().lpstrFile = MyPath;

it will work

Rinu Raj

David Crow27-Sep-06 3:01

David Crow

27-Sep-06 3:01

si_69 wrote:
CString MyPath "c:\";

This is a syntax error.

si_69 wrote:
if (logPath.GetLength())

What is logPath?

si_69 wrote:
dlg.GetOFN().lpstrInitialDir = MyPath;

Since GetOFN() does not exist with VC++ v6, I used m_ofn instead. Other than that, this code works fine. Do not use strcpy(), as you simply need to assign a pointer to an existing address.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

WARNING

Bravoone_200626-Sep-06 23:01

Bravoone_2006

26-Sep-06 23:01

what is this warning?
warning LNK4089: all references to "ODBC32.dll" discarded by /OPT:REF

Bravoone

Re: WARNING

Rajesh R Subramanian26-Sep-06 23:04

Rajesh R Subramanian

26-Sep-06 23:04

http://vcfaq.mvps.org/ide/7.htm

The more a man knows, the more he forgives. - Catherine the Great

Re: WARNING

Rinu_Raj26-Sep-06 23:04