C / C++ / MFC Discussion Boards

Re: files

Mircea Puiu31-Oct-05 8:56

Mircea Puiu

31-Oct-05 8:56

... and also, how is gz_op_fname declared?

SkyWalker

Re: files

Manu_8131-Oct-05 9:23

Manu_81

31-Oct-05 9:23

  <br />
char gz_op_fname[100]; //global variable<br />
...<br />
OutputDebug("Data Acq\n");<br />
	<br />
	//create output file<br />
	sprintf(gz_op_fname,"TargetStatistics%d.txt",fCnt);<br />
	while ((Ofile = fopen(gz_op_fname, "r")) != NULL)<br />
	{<br />
		OutputDebug(gz_op_fname);<br />
		sprintf(gz_op_fname,"TargetStatistics%d.txt",++fCnt);<br />
		fclose(Ofile);<br />
	}<br />
	<br />
		OutputDebug("Search Op file \n");<br />

these are the debug messages...
TOUCHCORDTOOL : Data Acq

TOUCHCORDTOOL : TargetStatistics0.txt
TOUCHCORDTOOL : TargetStatistics1.txt
TOUCHCORDTOOL : TargetStatistics2.txt
TOUCHCORDTOOL : TargetStatistics3.txt
TOUCHCORDTOOL : TargetStatistics4.txt
TOUCHCORDTOOL : TargetStatistics5.txt
TOUCHCORDTOOL : TargetStatistics6.txt
TOUCHCORDTOOL : TargetStatistics7.txtFirst-chance exception at 0x77f91c3c in EloTouchCordTool-Circle.exe: 0xC0000008: An invalid HANDLE was specified.
Unhandled exception at 0x77f91c3c in EloTouchCordTool-Circle.exe: 0xC0000008: An invalid HANDLE was specified.

Re: files

David Crow31-Oct-05 9:19

David Crow

31-Oct-05 9:19

Manu_81 wrote:
But sometimes with this code I get Invalid handle exception in the while loop.
and I occurs often when there are more files, say it has to create TargetStatistics20.txt.

Have you tried single-stepping through the code and noting the value of gz_op_fname when the exception is thrown? Is the variable large enough (e.g., MAX_PATH).

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: files

Manu_8131-Oct-05 9:28

Manu_81

31-Oct-05 9:28

If I do single stepping this exception does'nt occur.

Re: files

David Crow31-Oct-05 10:01

David Crow

31-Oct-05 10:01

Does the following help:

FILE *pFile;
char szFilename[MAX_PATH];
int nCount = -1;
 
do
{
    nCount++;
    sprintf(szFilename, "TargetStatistics%d.txt", nCount);
} while (_access(szFilename, 0) == 0);
 
pFile = fopen(szFilename, "r");
...
fclose(pFile);

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: files

Manu_8131-Oct-05 10:52

Manu_81

31-Oct-05 10:52

Sure that helped...Thanks a bunch.
Also I tried with Sleep(50) before fclose (inside the while loop-in my code from the previous posts) and it "seemed" to solve the problem.
interesting hun!!!!!

Re: files

David Crow31-Oct-05 10:59

David Crow

31-Oct-05 10:59

Manu_81 wrote:
interesting hun!!!!!

Not really. I suspected it had something to do with too many file open/close requests hence my suggestion for only one.

"Take only what you need and leave the land as you found it." - Native American Proverb

IMAP

viliam31-Oct-05 7:25

viliam

31-Oct-05 7:25

Does anyone know some sample or free code how
to work with IMAP mail protocol.
I have to write simple client and still dont have
luck to find some source on internet.
Thanx

viliam

Re: IMAP

David Crow31-Oct-05 7:40

David Crow

31-Oct-05 7:40

Does this help at all?

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: IMAP

Mircea Puiu31-Oct-05 8:28

Mircea Puiu

31-Oct-05 8:28

... I think the University of Washington provides even an IMAP toolkit. ... let me check it...
yeap, here: ftp://ftp.cac.washington.edu/mail/imap.tar.Z.[^]

SkyWalker

-- modified at 14:28 Monday 31st October, 2005

Question on Listbox with tooltip support

mckavity31-Oct-05 6:55

mckavity

31-Oct-05 6:55

Hi
I have implemented the code to produce tooltips for my listboxes using the article http://www.codeproject.com/combobox/cexlistboc.asp. This works fine for lists that are contained in CWnd windows. However, it does not work when my lists are contained in a CDialog. Any ideas on how to get this to work when the list is in a CDialog window ?

Thanks

Re: Question on Listbox with tooltip support

C^hris L^osinger31-Oct-05 8:05

C^hris L^osinger

31-Oct-05 8:05

maybe this will help: http://www.codeproject.com/dialog/tooltips.asp[^]

Cleek | Image Toolkits | Thumbnail maker

Re: Question on Listbox with tooltip support

mckavity31-Oct-05 9:11

mckavity

31-Oct-05 9:11

Thanks, but I've seen that one already. The tool tips I'm displaying for the list are specific to the row and column that the pointer is over. I need the tooltips to be specific to the list control, as they are now when it's used outside a dialog. Remember, this works fine (like the demo) when I use the list on a regular frame window.

EditBox & Enter

IndrekSnt31-Oct-05 6:02

IndrekSnt

31-Oct-05 6:02

Hello,
could it be possible to get a notification message when user presses Enter with the Editbox selected. If user hits Enter, it should get the editbox's text and write it into a Textbox..

All suggestions are welcome,
Thank You..

Re: EditBox &amp; Enter

Shay Harel31-Oct-05 6:11

Shay Harel

31-Oct-05 6:11

<br />
CWnd* pWnd = GetFocus(); <br />
<br />
if(pWnd->GetDlgCtrlID() != IDOK) <br />
{<br />
   if (pWnd->GetDlgCtrlID() == IDC_MYEDITBOX)<br />
	//do something;<br />
}<br />
<br />
CDialog::OnOK();<br />

Re: EditBox &amp;amp; Enter

IndrekSnt31-Oct-05 7:37

IndrekSnt

31-Oct-05 7:37

Thank You..

Seems that i posted it into a wrong discussion board.. Frown | :(

Win32 API without MFC would be a bit more helpful for me as i'm using DevC++ and i don't know what equals to CDialog::OnOK();

All suggestions are welcome,
Thank You..

Re: EditBox &amp;amp;amp; Enter

willy_total31-Oct-05 8:41

willy_total

31-Oct-05 8:41

here is Shay Harel code converted.

case IDOK:
HWND hWndChild = GetFocus();
if( hWndChild != GetDlgItem(hWnd, IDOK) )
{
if( hWndChild == GetDlgItem(hWnd, IDC_MYEDITBOX) )
// do something;
}

Re: EditBox &amp;amp;amp;amp; Enter

IndrekSnt1-Nov-05 9:35

IndrekSnt

1-Nov-05 9:35

and with message WM_COMMAND and switch (LOWORD(wParam)) ?
Why could if( hWndChild != GetDlgItem(hWnd, IDOK) ) be needed if the second one checks for a window in focus?

With this switch i get a notification even if user clicks on the editbox.
Is it possible to check HIWORD(wParam) for a mouseclick when the control is an editbox?

Do i have to use ES_MULTILINE | ES_WANTRETURN flags when creating the editbox in order to make the control even receive a notification about Enter?
Unfortunately i see no changes after adding these flags..

WinInf.EditBox = CreateWindow ("edit", "", WS_CHILD | WS_VISIBLE | <br />
                               ES_LEFT | ES_NOHIDESEL | ES_MULTILINE | ES_WANTRETURN,<br />
                               WinInf.ClientRect.left + 2,<br />
                               WinInf.ClientRect.bottom - 20,<br />
                               WinInf.ClientRect.right - 4, <br />
                               20,<br />
                               hwnd, (HMENU) 1, WinInf.hInst,<br />
                               NULL);

All suggestions are welcome,
Thank You..

Re: EditBox &amp;amp;amp;amp;amp; Enter

willy_total2-Nov-05 3:42

willy_total

2-Nov-05 3:42

You are making this much harder than it needs to be. This is a very easy thing to code. The following code does exactly what you need. All you have to do is copy it into your code and it will work. You don't need to mess around with the create options. The reason it works is because the IDOK button will be a default button, and will be called when the return is pressed.

case WM_COMMAND:
{
switch(LOWORD(wParam))
{
case IDOK:
{
HWND hWndChild = GetFocus();
if( hWndChild != GetDlgItem(hDlg, IDOK) )
{
if( hWndChild == GetDlgItem(hDlg, IDC_EDIT1) )
{
char szText[128];
GetWindowText(hWndChild, szText, sizeof(szText));
SetWindowText(GetDlgItem(hDlg, IDCS_TEXT), szText);
return TRUE;
}
}

EndDialog(hDlg, LOWORD(wParam));
}
return TRUE;

Wav file and Avi file in one ???

REU31-Oct-05 4:53

REU

31-Oct-05 4:53

SHALOM

Hello everybody
does somebody know how can I put together 2 files
one .Wav file, and one .Avi file
I have the Video in one and the sound in other
and I need to create a .Avi file with sound

does somebody know how to do it in MVisual C++
or there is some similar project to see ???

thanx for your help,
its a little bit urgent
Thanx

GOD BLESS YA

Reu

Re: Wav file and Avi file in one ???

Mircea Puiu31-Oct-05 8:39

Mircea Puiu

31-Oct-05 8:39

Hi,
you could try contacting Dr. Jawahar. Have a look here: http://gdit.iiit.net/~sujit/Projects/ME.php[^]

Maybe he has what you want.

SkyWalker

Re: Wav file and Avi file in one ???

LighthouseJ31-Oct-05 9:32

LighthouseJ

31-Oct-05 9:32

Are you looking to just do the operation, and not write any software?

If so, check out VirtualDub. You'll open the .avi file with it, under the Video menu, select "Direct Stream Copy". Under Audio, select "WAV audio...", select your file. Optionally, to compress the audio, select "Full Processing Mode" under Audio, then select "Compression..." and select a codec and quality. Click File->Save as AVI and you're done.

Memory Leak detection

Shay Harel31-Oct-05 4:40

Shay Harel

31-Oct-05 4:40

Hi,

As far as I remember, all the articles I have seen for detecting memory leaks were associated with adding some code to your program.

What if I am running someone else's code and I want to check for memory leaks, is that doable ?

Thanks,
Shay

Re: Memory Leak detection

David Crow31-Oct-05 5:15

David Crow

31-Oct-05 5:15

Shay Harel wrote:
What if I am running someone else's code and I want to check for memory leaks, is that doable ?

While it may be possible to detect if it has or hasn't, you'd have no way of determining where.

"Take only what you need and leave the land as you found it." - Native American Proverb

Re: Memory Leak detection

Shay Harel31-Oct-05 5:30

Shay Harel

31-Oct-05 5:30

I'll go with the first option.
If I can prove an application is leaking memory, I can get the developer to fix it. All I need to do is to prove it does it.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.