C / C++ / MFC

8-Jun-05 18:35

hai..

Thanks for u r quick response. The main problem is when i extract the unicode data it comming in ??????? symbols. How to extract this unicode data.Please let me know.

Thanking you,
Rose | [Rose]

E.Veera Raghavendra.

e.veera raghavendra

GDavy8-Jun-05 23:05

GDavy

8-Jun-05 23:05

Ok reading your previous post I understand you want to convert from Unicode to Ascii string.
Having "????" in your resulting string is probably because you converted to a codepage that does not support the characters in the unicode string.
Also make sure the font you use to display the converted text support the converted characters. That could also be the problem

Greetings,
Davy

Veera Raghavendra8-Jun-05 23:32

8-Jun-05 23:32

Unicode data is appearing on the application(MSWORD). When i extract throught the program it is giving in ????? symbols. Even i have installed "static libary for unicode" and "shared library for unicode". Please let me know.

Best Regards
Rose | [Rose]

E.Veera Raghavendra.

e.veera raghavendra

Blake Miller9-Jun-05 6:42

Blake Miller

9-Jun-05 6:42

You might still need to convert the string data within your program from UNICODE text data to ASCII text data using a function like WideCharToMultiByte

Veera Raghavendra9-Jun-05 18:28

9-Jun-05 18:28

I have tried with WideCharToMultiByte, It is not working.

wchar_t *unicodeStr;

int j=::WideCharToMultiByte(CP_ACP,WC_SEPCHARS,(const unsigned short *)cstContent.GetBuffer(0),-1,(char *)unicodeStr,0,NULL,NULL);

CString strj;
strj.Format("%d",j);
AfxMessageBox(strj);

if(j)
{
ToIntercedingModule(cstContent.GetBuffer(0),PURGE_SPEECH,cstFont.GetBuffer(0),"MSWord<<edit>>", false);
}

I have written above code. It's returning 0.

Thanking you
Rose | [Rose]

E.Veera Raghavendra.

e.veera raghavendra

Blake Miller10-Jun-05 4:21

Blake Miller

10-Jun-05 4:21

WideCharToMultiByte converts from UNICODE to MultiByte.
I think you got the parameters all jumbled up in the sample function call you posted.

Let us assume you have a buffer of text in UNICODE that you want to convert to MultiByte

char msMultiByteStringBuffer[1024];

WideCharToMultiByte(CP_THREAD_ACP, 0, wsUnicodeString, -1, msMultiByteStringBuffer,
sizeof(msMultiByteStringBuffer), NULL, NULL);

You can dynamically allocate the multibyte buffer if necessary, by obtaining the number of characters required by making a blank call:

int iNumCharsRequired = WideCharToMultiByte(CP_THREAD_ACP, 0, wsUnicodeString, -1, msMultiByteStringBuffer, 0, NULL, NULL);

Veera Raghavendra10-Jun-05 4:43

10-Jun-05 4:43

The above code is also not working. I am greatful to u r response.My unicode data is available in CString variable. So, i copied that data into *char variable. In WideCharToMultiByte(..) function when i gave the *char variable it is responding with the following error

WideCharToMultiByte' : cannot convert parameter 3 from 'char *' to 'const unsigned short *' Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast

so i have changed that (unsigned short *) variable.Is there any problem with this code. Please let me know.

Thanking you,
Rose | [Rose]

E.Veera Raghavendra.

e.veera raghavendra

Blake Miller10-Jun-05 5:48

Blake Miller

10-Jun-05 5:48

The CString buffer containing the UNICODE text must go where the UNICODE is required, and you need a separate buffer for the converted text. When a function wants to see LPBYTE or UINT* and you knwo it is supposed to be a charcater buffer, you can always put (LPBYTE) in front of the variable or put (UINT*)

For example, if I have char szBuffer[1024];

and some function expects an 'unsigned short *', you could do this:

(unsigned short *)szBuffer

From your explanation, I am concerned that you continue to place your UNICODE text where the MultiByte buffer should go and vice versa.

Veera Raghavendra10-Jun-05 16:36

Sync Scrolling in CListCtrl's...

10-Jun-05 16:36

I did same type of covertion before, even it was displaying the characters as ?????. And I have tried another way also. I have read one by one character from the buffer and changed to hexadecimal and deciaml values. All the character values aresame(hexadecimal--3f, Decimal--63). What i am thinking is VC++ is not able to extract that data.I have tried with IsUnicodeText(...) function. That's also failured.

Thankign you,
Rose | [Rose]

E.Veera Raghavendra.

Ian Bowler8-Jun-05 18:28

Ian Bowler

8-Jun-05 18:28

I need to sync the horizontal scrolling of two CListCtrl's. However, I don't want a scroll-bar to show up in one of the CListCtrl's. I've been trying to get it to work for several hours and I'm running out of ideas.

Any ideas out there? Remember, I can't have the scroll-bar showing up in one of the CListCtrl's.

Thanks!

-Ian

How to capture a still image using directshow

Member 11532388-Jun-05 17:42

Member 1153238

8-Jun-05 17:42

;P:->Dear all,
I've tested the method of the ISampleGrabber filter in Directshow,and also I accomplished Extracting bitmaps from a virtual camera.Now I just wonder whether the ISampleGrabber filter can be used in mobile devices? eg:Smartphone?
Thanks a lot and looking forward to your reply~

siwlyfe

Unicode Convertion

Veera Raghavendra8-Jun-05 17:07

8-Jun-05 17:07

Hai..

I have problem with unicode data. Please let me know any body having idea about converting unicode to Ascii.

Thanking you..
Rose | [Rose]

E.Veera Raghavendra.

e.veera raghavendra

Member 11532388-Jun-05 17:45

Member 1153238

8-Jun-05 17:45

Yes,I want it too.Pls list out the methods of Unicode data type convertion if any body knows.Thanks a lot and best wishes

siwlyfe

ThatsAlok8-Jun-05 18:14

ThatsAlok

8-Jun-05 18:14

Have a look here

http://www.codeproject.com/script/comments/forums.asp?msg=1130580&forumid=1647#xx1130580xx[^]

and here

http://www.codeproject.com/script/comments/forums.asp?msg=1130590&forumid=1647#xx1130590xx[^]

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Jack Puppy8-Jun-05 17:58

Jack Puppy

8-Jun-05 17:58

Win32:

WideCharToMultiByte => Unicode to ANSI
MultiByteToWideChar => ANSI to Unicode

If you're using MFC 7.1:

CStringW strUnicode = L"Blah";
CStringA strANSI(strUnicode);

CStringW = Unicode string
CStringA = ANSI string

Pssst. You see that little light on your monitor? That's actually a government installed spy camera. Smile and wave to big brother!

ThatsAlok8-Jun-05 18:13

ThatsAlok

8-Jun-05 18:13

In Continuation with Mr Jack :-

1. wcstombs(convert wide character to Multibyte character),mbstowcs (just reverse of previous)

2. String converion MACROS W2T,T2BSTR etc, have a look here for complete list

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_atl_string_conversion_macros.asp[^]

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Veera Raghavendra8-Jun-05 18:34

8-Jun-05 18:34

E.Veera Raghavendra.

e.veera raghavendra

Ignore ASSERT Dialog?

Blue-Bird8-Jun-05 16:55

Blue-Bird

8-Jun-05 16:55

I Want to ignore ASSERT Dialog on DEBUG mode using try ~ catch.

How can i do it? Confused | :confused:

help me pelase...

And sorry for my little English.

thanks..

Christian Graus8-Jun-05 17:14

Christian Graus

8-Jun-05 17:14

You can't, they are different beasts. You can redefine the ASSERT macro, I suppose.

Christian Graus - Microsoft MVP - C++

Anonymous8-Jun-05 17:48

Anonymous

8-Jun-05 17:48

I think you are confusing ASSERT (dialog which comes up due to statements like ASSERT(FALSE) ) and a crash dialog. ASSERT are more of a programmers tool to announce that something is wrong. If you dont want to have ASSERT coming up for an expression evaluating to be FALSE, then just remove them. Simple.

And if you are interested in handling crashes gracefully, then you should have something like

try
{
// Code resulting in probable crash.
}
catch(...)
{
}

Christian Graus8-Jun-05 18:25

Christian Graus

8-Jun-05 18:25

Possibly a good answer, but you gave it to the wrong person.

Christian Graus - Microsoft MVP - C++

Alex Korchemniy8-Jun-05 21:20

Alex Korchemniy

8-Jun-05 21:20

>> wrong person

Poor you. Laugh | :laugh:

I've seen this like 10 times already.

Alex Korchemniy