C / C++ / MFC

DirectSound - Windows Handle

21-Dec-03 23:03

That's the only way i know.
There is wtoi which deals with wide char string to int.
That's it.

@!$h@

Re: CString to Integer

Abhishek Srivastava21-Dec-03 23:10

Abhishek Srivastava

21-Dec-03 23:10

Hi friend , Smile | :)

it is as smiple as that
CString str="1235678";
int a = atoi(str.operator LPCTSTR());

now try this Smile | :)

"This world is a compliler, I am compiling my life and trying to make it error free "

Abhishek Srivastava
Software Engg (VC++)
India ,Noida
Mobile no 9891492921 Smile | :)

Re: CString to Integer

GeraldoLuiz21-Dec-03 23:54

GeraldoLuiz

21-Dec-03 23:54

Hi, You can also use the Win32 API (Shell API) function if you want to avoid the CRT (C Run-Time Library) (If you use ATL/WTL for example)
StrToInt(LPCTSTR lpSrc);
Also check the others string functions from Win32 API (Platform SDK) and the Shell API (shlwapi.h). They mimic almost every string function from C++ library.
Geraldo.

MATLAB C++ problems

Vincent Sim21-Dec-03 22:27

Vincent Sim

21-Dec-03 22:27

hi everybody,

I followed completely the example

http://www.mathworks.com/support/solutions/data/27671.shtml

and tried to learn the idea but I met some linking problem about it.

Linking...

foowrap.obj : error LNK2001: unresolved external symbol _mxCreateDoubleScalar

Debug/test.exe : fatal error LNK1120: 1 unresolved externals

Error executing link.exe.

test.exe - 2 error(s), 0 warning(s)

what can i do in order to settle the linking errors.

and here is another question,

if i plan to call the matlab function
[features, targets] = improved_DA1(x,[cluster,0.95]);
how can i settle such kind of scenario and calling the [ ] in reference with the website tutorial method,http://www.mathworks.com/support/solutions/data/27671.shtml

thank you for your all helping

Vincent Sim

elza21-Dec-03 22:05

elza

21-Dec-03 22:05

hello,

Can u pls clear a doubt in DS...I have an UI based application where I am using DirectSound for Audio capture & playback. I used the function DirectSoundFullDuplexCreate8() where I am setting the cooperative level to DSSCL_PRIORITY. .I am passing the Handle of the UI window to the DirectSoundFullDuplexCreate8() function.

But alas, when i minimize this UI window I am unable to hear the captured voice.Does the cooperative level setting got anything to do with the windows handle??I also tried using DSSCL_NORMAL . The same result .

Is there any solution to this. I mean, can i use any other cooperative level or any other way so that even if I minimize the UI window i can playback the captured audio???

regards,
Elza

Always underlining the access keys of pop up menu

Raghunandan S21-Dec-03 21:00

Raghunandan S

21-Dec-03 21:00

Hi,
Can someone tell me how to make all the pop up menu item's access keys underlined always irrespective of whether user right clicks or hits the context menu key .

Thanks in advance.

Re: Always underlining the access keys of pop up menu

David Crow22-Dec-03 3:48

David Crow

22-Dec-03 3:48

On Windows 2000, open the Display applet in Control Panel. Select the Effects tab. Uncheck the Hide keyboard navigation indicators until I use the Alt key option.

Five birds are sitting on a fence.
Three of them decide to fly off.
How many are left?

Re: Always underlining the access keys of pop up menu

Raghunandan S22-Dec-03 14:35

Raghunandan S

22-Dec-03 14:35

Thanks for ur response.But how can i do this from code

Re: Always underlining the access keys of pop up menu

Chris Richardson22-Dec-03 18:18

Chris Richardson

22-Dec-03 18:18

Try this:

BOOL a_bSet = TRUE;
SystemParametersInfo( SPI_SETKEYBOARDCUES, 0, (DWORD)&a_bSet, SPIF_SENDCHANGE );

Good luck,

Chris Richardson

Re: Always underlining the access keys of pop up menu

Raghunandan S22-Dec-03 21:04

Raghunandan S

22-Dec-03 21:04

thankyou

about sscanf function in SP4 and SP5

zx_sanjin21-Dec-03 20:12

zx_sanjin

21-Dec-03 20:12

char szTemp[128];
sprintf(szTemp, "%c", 'a');
char c = '1';
int iRet = sscanf(szTemp, "%d", &c);

Other machine(VC6.0+SP4)
iRet = 1, szTemp is 'a'

My machine (VC6.0+SP5)
iRet = 0, szTemp is '1'

if use
int iRet = sscanf(szTemp, "%c", &c);
the result is ok.

why not SP5 support the same as code:
int iRet = sscanf(szTemp, "%d", &c);

??

Re: about sscanf function in SP4 and SP5

Gary R. Wheeler22-Dec-03 4:58

Gary R. Wheeler

22-Dec-03 4:58

zx_sanjin wrote:

char szTemp[128];
sprintf(szTemp, "%c", 'a');
char c = '1';
int iRet = sscanf(szTemp, "%d", &c);

The last line results in a buffer overrun. The "%d" format reads an int from the string, but you're passing a pointer to a char. On most machines, int's are 32 bit (4 byte) values, while char's are 8 bit (1 byte) values. This line then overruns the char c by 3 bytes.

zx_sanjin wrote:

int iRet = sscanf(szTemp, "%c", &c);

This line is correct, because you are reading a single character from the string into a char variable.

Software Zen: delete this;

Re: about sscanf function in SP4 and SP5

zx_sanjin22-Dec-03 17:58

zx_sanjin

22-Dec-03 17:58

There is some wrong in my macine.
Thank you for your reply.

How can I know what a window under the mouse?

Eugene Pustovoyt21-Dec-03 19:06

Eugene Pustovoyt

21-Dec-03 19:06

Can I know what a window under the mouse (for example: it is a toolbar or not)?

Best regards,
Eugene Pustovoyt

Michael Dunn21-Dec-03 19:28

Michael Dunn

21-Dec-03 19:28

Call ChildWindowFromPoint() to get the handle of the window under the cursor, then call GetClassName() to get the window class name of that window.

--Mike--
Ericahist | CP SearchBar v2.0.2 | Homepage | RightClick-Encrypt | 1ClickPicGrabber
You cannot truly appreciate Dilbert unless you've read it in the original Klingon.

Eugene Pustovoyt21-Dec-03 19:37

Eugene Pustovoyt

21-Dec-03 19:37

Thank you! And what is toolbar classname?

Best regards,
Eugene Pustovoyt

Michael Dunn21-Dec-03 19:46

Michael Dunn

21-Dec-03 19:46

List of common control class names[^] Cool | :cool:

--Mike--
Ericahist | CP SearchBar v2.0.2 | Homepage | RightClick-Encrypt | 1ClickPicGrabber
#include "witty-quote.h"

Eugene Pustovoyt21-Dec-03 21:32

Eugene Pustovoyt

21-Dec-03 21:32

Thank you very much!!!

Best regards,
Eugene Pustovoyt

Mathematical Expression Builder(parser)

Jörgen Sigvardsson22-Dec-03 11:10

Jörgen Sigvardsson

22-Dec-03 11:10

Assuming that the toolbar is a common control. Roll eyes | :rolleyes:

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insídias diáboli esto præsídium. Imperet illi Deus, súpplices deprecámur:
tuque, princeps milítiæ cæléstis, Sátanam aliósque spíritus malígnos, qui
ad perditiónem animárum pervagántur in mundo, divína virtúte,
In inférnum detrude. Amen.

Aisha Ikram21-Dec-03 18:11

21-Dec-03 18:11

I need a simple Mathematical Expression Builder(parser). Does anybody know about some free source code (C++, MFC) for that. What is the best way of making an expression parser. can i use regular expressions? what would be the best suggestion.

I prefer to provide intellisence like Visual Studio or Visual Assist while typing an expression, how that can be provided? any code for that?

@!$h@

Bob Stanneveld21-Dec-03 20:51

Bob Stanneveld

21-Dec-03 20:51

Hi,

You can use a regular expression parser. Read this[^] article, and you should be on your way to solve your problem.

Good luck.

A student knows little about a lot.
A professor knows a lot about little.
I know everything about nothing.

Aisha Ikram21-Dec-03 23:00

21-Dec-03 23:00

What about using Lex and Yacc thing?

@!$h@

Bob Stanneveld22-Dec-03 3:01

Bob Stanneveld

22-Dec-03 3:01

I don't know how to use those tools properly, but you could use them also.

The article that I pointed you to, has it's implementation based on mathematical expressions. After reading it, you should be able to write your own expression parser based on the same theory.
It doesn't matter wheter you want a mathematical expression parser or a regular expression parser, the idea of parsing is the same. Only the implementation is different.

A student knows little about a lot.
A professor knows a lot about little.
I know everything about nothing.

Aisha Ikram22-Dec-03 22:22