C / C++ / MFC

Re: Error in MSHTML.h file

6-Jun-06 2:27

Shikha Jain wrote:
identifier 'LONG_PTR'

identifier LONG_PTR what ????? undefined ? symbol unknown ?

what is the compilation error number, and exact message please ????

TOXCCT >>> GEII power

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

khan++6-Jun-06 2:35

khan++

6-Jun-06 2:35

I think it is defined in basetsd.h header. Just include that header, and it should be fine.
In the Microsoft SDK, it is defined as:
typedef _W64 long LONG_PTR, *PLONG_PTR;
As you can see it is a long in disguise.

this is this.

Re: Error in MSHTML.h file

Hamid_RT6-Jun-06 2:39

Hamid_RT

6-Jun-06 2:39

Can you be more specific whats application type?

whitesky

problem

V_shr6-Jun-06 2:03

6-Jun-06 2:03

I read from a file , when I reach :
<#if ... #>
when the " ... "(something) is short the fgets function reads true
but when the " ... "(something) is a little longer the fgets function read incorect

what is the problem???
thank you

toxcct6-Jun-06 2:07

6-Jun-06 2:07

if you look at the fgets()[^] function behavior, it waits for a "maximum characters to read" parameter ; so i believe that your problem comes from the length of your buffer (if you read a line which is wider that your buffer, it will be truncated)

TOXCCT >>> GEII power

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

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 .

toxcct6-Jun-06 2:19

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! ]

V_shr6-Jun-06 2:38

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.."

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)?

V_shr6-Jun-06 2:49

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

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

V_shr6-Jun-06 3:25

6-Jun-06 3:25

how can I post the files to you ?

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

V_shr6-Jun-06 3:44

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>

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.

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

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:

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...

toxcct6-Jun-06 2:01

6-Jun-06 2:01

see Visual Leak Detector[^] article...

TOXCCT >>> GEII power

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

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.