Re: problem [modified] - C / C++ / MFC Discussion Boards

V_shr6-Jun-06 2:15

6-Jun-06 2:15

no , i put n=1000 and ... is less than 100 characters .
and also when i read :
dsalgujbslgkusdhglidsufhgllkufg
it is true but
<#if dsgubsldfjgblfdgbldfgb #>
is false !!!!!!!!!!!!!!!!!!!!!!!!!
i dont know why fgets act like this .

Re: problem

toxcct6-Jun-06 2:19

toxcct

6-Jun-06 2:19

use you debugger to compare the string you read and what is actually filled in your buffer.

btw, do you have any \n, spaces or escape characters in the string read ?

TOXCCT >>> GEII power

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

Re: problem

V_shr6-Jun-06 2:38

V_shr

6-Jun-06 2:38

I haven't any '\n' , space and scape . this is what happens :

the file is:

<#if...#>
hello

the code is: --------------- debugger shows :

char string[1000]="";      //  string = "" ><br />
fgets("adress",1000,input);      //  string = "<#if.."<br />
fgets("adress",1000,input);      //  string = "<#if.."

Re: problem

Viorel.6-Jun-06 2:44

Viorel.

6-Jun-06 2:44

My be fgets("adress",1000,input) must be replaced with fgets(string,1000,input)?

Re: problem [modified]

V_shr6-Jun-06 2:49

V_shr

6-Jun-06 2:49

AH ofcourse it was a misprint , it is true in my code .

-- modified at 8:54 Tuesday 6th June, 2006

Re: problem [modified]

Cedric Moonen6-Jun-06 3:13

Cedric Moonen

6-Jun-06 3:13

Can you post your code ? (With the opening of the file also)

Cédric Moonen
Software developer

Charting control

Re: problem [modified]

V_shr6-Jun-06 3:25

V_shr

6-Jun-06 3:25

how can I post the files to you ?

Re: problem [modified]

Cedric Moonen6-Jun-06 3:29

Cedric Moonen

6-Jun-06 3:29

Just post the relevant information here (the code snippet that opens and read from the files with the variables that are used). Please use the code tags (above the emoticons)

Cédric Moonen
Software developer

Charting control

Re: problem [modified]

V_shr6-Jun-06 3:44

V_shr

6-Jun-06 3:44

code is :

int main()
{
char khat[1000];
clrscr();
int i;
for(i=0;i<1000;i++)  {khat[i]='\0'; if(i<100)counter[i]=0;}
FILE *f;
f=fopen("falle//in2.htm","r");
for(i=1;i<1000;i++)
  {
  fgets(khat,1000,f);
  // here you can see the khat string
  printf("%s\n",khat);
  if(strcmp(khat,"</HTML>")==0) break;
  }
fclose(f);
char ch=getch();
if(ch==27)   return 0;
return 0;
}

and file is :

<HTML>
<BODY>
<#if( 1+2^3 < 2*(2+3)+1-1+1-1+1-1+1-1+1-1+1-1+1-1+1-1+1-1+1-1+1-1 )#>
correct
yes , it is correct
<#fi#>
incorect
<#loop 4#>
this is in the loop
and number is :
<#i#>
<#do#>
</BODY>
</HTML>

Re: problem [modified]

Viorel.6-Jun-06 3:16

Viorel.

6-Jun-06 3:16

I think you should provide the entire fragment between the line where you open the file (fopen) and close it (fclose), and may be a precise content of input file. Perhaps, someone will figure out the problem.

If your program is too big, try to remove (comment) some fragments, keeping file-processing only. Thus you should be able to reproduce the problem for a smaller program.

Re: problem

David Crow6-Jun-06 3:16

David Crow

6-Jun-06 3:16

How are you verifying the contents of string?

"The largest fire starts but with the smallest spark." - David Crow

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

how to record audio

ramyasangeet6-Jun-06 1:58

ramyasangeet

6-Jun-06 1:58

hi all,

I have a video player that plays video files(.cam).Everthing is working fine.I can even able to extract audio and save it as .wav file.

This is the code where i record audio .

DWORD CWave::recordWAVEFile(DWORD dwMilliSeconds) <br />
{ <br />
    UINT wDeviceID; <br />
    DWORD dwReturn; <br />
    MCI_OPEN_PARMS mciOpenParms; <br />
    MCI_RECORD_PARMS mciRecordParms; <br />
    MCI_SAVE_PARMS mciSaveParms; <br />
    MCI_PLAY_PARMS mciPlayParms; <br />
   <br />
    // Open a waveform-audio device with a new file for recording. <br />
    mciOpenParms.lpstrDeviceType = "waveaudio"; <br />
    mciOpenParms.lpstrElementName = ""; <br />
    if (dwReturn = mciSendCommand(0, MCI_OPEN, <br />
        MCI_OPEN_ELEMENT | MCI_OPEN_TYPE, <br />
        (DWORD)(LPVOID) &mciOpenParms)) <br />
    { <br />
        // Failed to open device; don't close it, just return error. <br />
        return (dwReturn); <br />
    } <br />
<br />
    // The device opened successfully; get the device ID. <br />
    wDeviceID = mciOpenParms.wDeviceID; <br />
<br />
    // Begin recording and record for the specified number of <br />
    // milliseconds. Wait for recording to complete before continuing. <br />
    // Assume the default time format for the waveform-audio device <br />
    // (milliseconds). <br />
    mciRecordParms.dwTo = dwMilliSeconds; <br />
    if (dwReturn = mciSendCommand(wDeviceID, MCI_RECORD, <br />
        MCI_TO | MCI_WAIT, (DWORD)(LPVOID) &mciRecordParms)) <br />
    { <br />
        mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL); <br />
        return (dwReturn); <br />
    } <br />
<br />
  // Play the recording and query user to save the file. <br />
   /* mciPlayParms.dwFrom = 0L; <br />
    if (dwReturn = mciSendCommand(wDeviceID, MCI_PLAY, <br />
        MCI_FROM | MCI_WAIT, (DWORD)(LPVOID) &mciPlayParms)) <br />
    { <br />
        mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL); <br />
        return (dwReturn); <br />
    } */<br />
    if (MessageBox(hMainWnd, "Do you want to save this recording?", <br />
        "", MB_YESNO) == IDNO) <br />
    { <br />
        mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL); <br />
        return (0L); <br />
    } <br />
<br />
    // Save the recording to a file named TEMPFILE.WAV. Wait for <br />
    // the operation to complete before continuing. <br />
    mciSaveParms.lpfilename = "c:\\file.wav"; <br />
    if (dwReturn = mciSendCommand(wDeviceID, MCI_SAVE, <br />
        MCI_SAVE_FILE | MCI_WAIT, (DWORD)(LPVOID) &mciSaveParms)) <br />
    { <br />
        mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL); <br />
        return (dwReturn); <br />
    } <br />
    return (0L); <br />
}

But my problem,it takes more time to record and not allowing to play the video.
(recording is done at first)

Can I do recording the audio and playing video simultaneously..

help me please..

cheers

sangeet

Re: how to record audio

Cedric Moonen6-Jun-06 2:08

Cedric Moonen

6-Jun-06 2:08

If the save is a lenghty operation, then you can simply start a new thread in which you will do the saving.

Cédric Moonen
Software developer

Charting control

DEBUG_NEW Problem

Jethro636-Jun-06 1:48

Jethro63

6-Jun-06 1:48

Greetings:

I am writing an MFC app with VS 2003. I am trying to track a memory leak. I have replaced all of my "new" keywords with "DEBUG_NEW" as per the Microsoft documentation on tracking MFC memory leaks.

All of my files contain the:

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

lines at the top and I am building in _DEBUG mode.

The compiler is issuing "identifier not found" for all instances of "DEBUG_NEW".

Does anybody know what the problem is?
Thanks in advance,
Mark

Re: DEBUG_NEW Problem

Laxman Auti6-Jun-06 1:55

Laxman Auti

6-Jun-06 1:55

wrote:
I am writing an MFC app with VS 2003. I am trying to track a memory leak. I have replaced all of my "new" keywords with "DEBUG_NEW" as per the Microsoft documentation on tracking MFC memory leaks.
All of my files contain the:

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

lines at the top and I am building in _DEBUG mode.

The compiler is issuing "identifier not found" for all instances of "DEBUG_NEW".

Does anybody know what the problem is?

Are you using precompiled headers??
if not then try including "Afx.h" file which contains the definition related to DEBUG_NEW macro.

Knock out 't' from can't,
You can if you think you can
Cool | :cool:

Re: DEBUG_NEW Problem

Jethro636-Jun-06 2:02

Jethro63

6-Jun-06 2:02

Hi, thanks for your response.

Yes, I am using pre-compiled headers and I also added the include of "afx.h" to the top of all of my files, just for good measure. I am still getting the same result...

Bizarre...

Re: DEBUG_NEW Problem

toxcct6-Jun-06 2:01

toxcct

6-Jun-06 2:01

see Visual Leak Detector[^] article...

TOXCCT >>> GEII power

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

Re: DEBUG_NEW Problem

Viorel.6-Jun-06 2:25

Viorel.

6-Jun-06 2:25

I think you only need to add the definition for new, but you do not have to replace any appearance of your new operators with DEBUG_NEW.

Re: DEBUG_NEW Problem

Jethro636-Jun-06 2:31

Jethro63

6-Jun-06 2:31

You know, I think you're right. I misunderstood the documentation.

So that means that the memory dump data that I am getting in my output window is as good as it gets? Its not very helpful...

Oh, well...

Thanks for your help.
Mark

open a file in binary mode

V_shr6-Jun-06 1:28

V_shr

6-Jun-06 1:28

Hello
I want to open a file in binary mode in Turbo C++ , by using fopen()
and i need help

thank you

Re: open a file in binary mode

Cedric Moonen6-Jun-06 1:31

Cedric Moonen

6-Jun-06 1:31

V_shr wrote:
I want to open a file in binary mode in Turbo C++ , by using fopen()

What are you trying to do ? Could you be more specific ?
If you want to 'open the file in binary mode', you can simply add the flag "b" when calling fopen. But I doubt this is what you are looking for.

Cédric Moonen
Software developer

Charting control

Re: open a file in binary mode

V_shr6-Jun-06 1:34

V_shr

6-Jun-06 1:34

do you mean that i can write :
fopen(adress,"br");

??

Re: open a file in binary mode

Cedric Moonen6-Jun-06 1:36

Cedric Moonen

6-Jun-06 1:36

V_shr wrote:
do you mean that i can write :
fopen(adress,"br");

Yes but what is adress ? It should be a char array that contains the path to the file.
But you didn't answer my question: what are you trying to do exactly ? I think binary mode is not what you think it is.

Cédric Moonen
Software developer

Charting control

Re: open a file in binary mode

toxcct6-Jun-06 1:32

toxcct

6-Jun-06 1:32

have you only look the fopen() doc[^] ??

fopen("file.dat", "ba+");

TOXCCT >>> GEII power

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

Re: open a file in binary mode

V_shr6-Jun-06 1:35

V_shr

6-Jun-06 1:35

thanks

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