C / C++ / MFC Discussion Boards

alex.barylski15-Feb-02 7:09

15-Feb-02 7:09

Joaquín M López Muñoz wrote:
This is unfair my answer gets listed the last, yet its associated time is prior than the others' !!

Poke tongue | ;-P

"An expert is someone who has made all the mistakes in his or her field" - Niels Bohr

Re: reading files

Nish Nishant15-Feb-02 8:16

Nish Nishant

15-Feb-02 8:16

Joaquín M López Muñoz wrote:
my answer gets listed the last, yet its associated time is prior than the others' !!

Thats cause you used STL in your answer.
Chris M might not like that much.

Nish Big Grin | :-D

Nish was here, now Nish has gone;
He left his soul, to turn you on;
Those who knew Nish, knew him well;
Those who didn't, can go to hell.

I like to Jig | [Dance]

on the Code Project

Sonork ID 100.9786 voidmain
www.busterboy.org

Re: reading files

Joaquín M López Muñoz15-Feb-02 9:20

Joaquín M López Muñoz

15-Feb-02 9:20

LOL

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: reading files

alex.barylski15-Feb-02 6:52

alex.barylski

15-Feb-02 6:52

CFile myFile("theFile.dat", options);

int nSize = 663;

char* buff = new char[nSize];

myFile.Read(&buff, nSize);

delete [] buff;

I think this is what yer after...

"An expert is someone who has made all the mistakes in his or her field" - Niels Bohr

Re: reading files

Joaquín M López Muñoz15-Feb-02 6:51

Joaquín M López Muñoz

15-Feb-02 6:51

If you are into iostreams, this is the way:

std::istream in;
std::string str;
...
std::getline(in,str);

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: reading files

Navier15-Feb-02 11:53

Navier

15-Feb-02 11:53

That's definitely the way I'd do it (you need an ifstream though not an istream) you get all the flexibility in the world and code re-use goes up 'cos you're not having to talk MFC. You can always use .c_str() on it if you need to get down and dirty. Why does anybody use anything else?

I hear The Prisoner and 7of9 aren't getting along too well these days.

Run to For's at once

Steven Richardson15-Feb-02 5:42

Steven Richardson

15-Feb-02 5:42

how do you run two for's at once?

Re: Run to For's at once

Roger Allen15-Feb-02 5:53

Roger Allen

15-Feb-02 5:53

int i = 0 ;
int j = 0 ;

for ( ; i < 10 && j < 10 ; ++i, ++j)
{
}

Maybe that would do the job. I originally put i++, j++, but then I thought "Holy crap, I'll get blasted by all those c++ efficiency coders out there"

Roger Allen
Sonork 100.10016

If I'm not breathing, I'm either dead or holding my breath.
A fool jabbers, while a wise man listens. But is he so wise to listen to the fool?
Please step to the rear of the car and make room for more victims. - John Simmons the Outlaw programmer, 1st Feb 2002, in the lounge

Re: Run to For's at once

Steven Richardson15-Feb-02 6:01

Steven Richardson

15-Feb-02 6:01

thanks worked great

Re: Run to For's at once

Nish Nishant15-Feb-02 6:08

Nish Nishant

15-Feb-02 6:08

Ooops!
I misunderstood your question.
Please ignore my reply Smile | :)

Nish

Nish was here, now Nish has gone;
He left his soul, to turn you on;
Those who knew Nish, knew him well;
Those who didn't, can go to hell.

I like to Jig | [Dance]

on the Code Project

Sonork ID 100.9786 voidmain
www.busterboy.org

Re: Run to For's at once

Roger Allen15-Feb-02 6:35

Roger Allen

15-Feb-02 6:35

Don't feel too bad Nish, if he had spelt his topic correctly it would have been easier to understand.

Run two For's at once

Big Grin | :-D

Roger Allen
Sonork 100.10016

If I'm not breathing, I'm either dead or holding my breath.
A fool jabbers, while a wise man listens. But is he so wise to listen to the fool?
Please step to the rear of the car and make room for more victims. - John Simmons the Outlaw programmer, 1st Feb 2002, in the lounge

Re: Run to For's at once

alex.barylski15-Feb-02 6:48

alex.barylski

15-Feb-02 6:48

Roger Allen wrote:
Run two For's at once

I thought he was talking about beer... Smile | :)

"An expert is someone who has made all the mistakes in his or her field" - Niels Bohr

Re: Run to For's at once

Navier15-Feb-02 12:44

Navier

15-Feb-02 12:44

You can also do:

for (int i=0, int j=0; i<10 && j<10; ++i, ++j)

Just wanted to blow that disgustingly UGLY bit of code out of the water. Three lines for a loop for God's sake. Talk about slack. When I were a lad we 'ad 2k and bloody grateful for it we were too. Eee, young 'uns.

Anyway, what's so wrong with writing efficient code then?

i1.2sqrt(u).bcos(ur)sec(c) but b4.isqrt(u).ru/16

Re: Run to For's at once

Nish Nishant15-Feb-02 5:55

Nish Nishant

15-Feb-02 5:55

for(i=0;i<j;i++)
	for(a=0;a<z;a++)

Nish

Nish was here, now Nish has gone;
He left his soul, to turn you on;
Those who knew Nish, knew him well;
Those who didn't, can go to hell.

I like to Jig | [Dance]

on the Code Project

Sonork ID 100.9786 voidmain
www.busterboy.org

Re: Run to For's at once

Steven Richardson15-Feb-02 6:26

Steven Richardson

15-Feb-02 6:26

that is what i had but it ran the first one then the second one over till that had finnished then it ran the first one again and then started over the first one again

Re: Run to For's at once

Nish Nishant15-Feb-02 6:49

Nish Nishant

15-Feb-02 6:49

Yes.
The only way to actually have two 'for's running together is to have two threads. But then that's not what you want. You want two variables to be incrementted in parallel. For that you can do what Roger suggested...
But there you have one 'for' with two variables getting incremented on each iteration.

Nish

Nish was here, now Nish has gone;
He left his soul, to turn you on;
Those who knew Nish, knew him well;
Those who didn't, can go to hell.

I like to Jig | [Dance]

on the Code Project

Sonork ID 100.9786 voidmain
www.busterboy.org

Re: Run to For's at once

Steven Richardson15-Feb-02 6:52

Steven Richardson

15-Feb-02 6:52

Thanks everyone! Big Grin | :-D

CD audio: MCI, AVIStream?

starn15-Feb-02 3:39

starn

15-Feb-02 3:39

Hi!
I would like to play an audio CD and be able to manipulate the datas from the CDRom drive(put them in frames and send them through a network).
I m a bit lost... what should I use:MCI or AVIStream?
If you have codes on which I can start learning...PLEASE send them to me...
(sorry for the english, I speak french...)
starn@skynet.be

Thanks a lot!!!! Big Grin | :-D

Context Menu on Context Menu

Lilian Chan-Grant15-Feb-02 3:18

Lilian Chan-Grant

15-Feb-02 3:18

My app is COM using WTL. On the main menu, we have a Reports pulldown menu. On the Reports options, there are right arrows indicating another pulldown menu. For other dialogs, we have buttons on the bottom (standard OK, Apply, Cancel), including a Reports button. They tried to implement it so that a context menu appears upon pushing the Reports button, but they had no luck. Right now that bottom button just brings up another dialog displaying options. Has anyone done this kind of stuff before?

Please help if you can Wink | ;)

Thanks,
Lilian

Re: Context Menu on Context Menu

Michael Dunn15-Feb-02 8:16

Michael Dunn

15-Feb-02 8:16

That's simple, check out the Buttons section at this site for menu button samples. It just involves handling the WM_COMMAND message and calling TrackPopupMenu().

--Mike--
"There are only a limited number of jobs where they will ask to see the sausage. Most of them are in movies."
-- Christian Graus, 2/11/2002
My really out-of-date homepage
Sonork - 100.10414 AcidHelm
Big fan of Alyson Hannigan.

CMsFlexGrid : any response, please

DanYELL15-Feb-02 2:18

DanYELL

15-Feb-02 2:18

I have a CMsFlxGrid control in a CFormView. I have two (2) questions which I am struggling with.

1. Is there any way to make a row in a grid two lines deep? That is, they can type information on the first line of the row, hit enter and continue typing information on the second line of the same row. So you have something like:

-----------------------------------
line 1 text | just one 1 of text
line 2 text |
-----------------------------------

So there are two (2) columns and one grid row, but the single grid row has two (2) lines of text.

2. Is there any way of adding a push button to a cell? Examples are cherished Smile | :)

Please, please, any response any one can give me will be greatly appreciated. There is not much documentation on this control.

Sincerely,
Danielle (an overworked graduate student)

Re: CMsFlexGrid : any response, please

Carlos Antollini15-Feb-02 3:10

Carlos Antollini

15-Feb-02 3:10

It's very difficult to make all of them...
The first option is not possible.
And the second one, is possible using a simple trick, only put the button, over the grid, in the point that you want. You can get the cordinated of a cell, and with that you can put the button in the correct place, usin SetWindowPlacement...

Regards....

Carlos Antollini.
Sonork ID 100.10529 cantollini
"The three most dangerous things in the world are a programmer with a soldering iron, a hardware type with a software patch and a user with an idea."

HEX to INT

Steven Richardson15-Feb-02 1:27

Steven Richardson

15-Feb-02 1:27

i have used INTtoHEX to convert some text to HEX but now I need to convert it back to read able text any cues?

AnsiString EditText = RichEdit1->Lines->Text;
for (int i=1;i<=EditText.Length();i++) {
RichEdit2->Lines->Text = RichEdit2->Lines->Text + IntToHex(EditText[i],2);
}
RichEdit1->Lines->Text = "";
RichEdit1->Lines->Text = RichEdit2->Lines->Text;
RichEdit2->Lines->Text = "";

Re: HEX to INT

Mazdak15-Feb-02 2:10

Mazdak

15-Feb-02 2:10

There some articles in CP.
Check this

Mazy

Don't Marry a Person You Can Live With...
Marry Someone You Can Not Live Without

Re: HEX to INT

moliate15-Feb-02 2:30

moliate

15-Feb-02 2:30

Very crude, but i think this should work (send 2 chars at a time in your case)

int Hex2Int(char* hex)
{if (!*hex) return 0;

 int tmp = 0; 
 if (*hex >= '0' && *hex <= '9')
	 tmp = *hex - '0';
 else if (*hex >= 'A' && *hex <= 'F')
	 tmp = *hex - 'A' + 10;
 else if (*hex >= 'a' && *hex <= 'f')
	 tmp = *hex - 'a' + 10;

 return (tmp << (4*(strlen(hex)-1))) + Hex2Int(hex+sizeof(char));
}

/moliate

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