\0 esc-characters in 4-byte-characters - C / C++ / MFC Discussion Boards

micutzu9-Jan-06 1:44

9-Jan-06 1:44

Hello,

Can anyone send me a link to a c++ sample that is able to track all pages sent to a local or network printer from a machine (running Windows XP)?

Thank you,

Regards,

Dan.

Re: Printer Monitoring

David Crow9-Jan-06 3:09

David Crow

9-Jan-06 3:09

Start here.

"The words of God are not like the oak leaf which dies and falls to the earth, but like the pine tree which stays green forever." - Native American Proverb

Re: Printer Monitoring

Dudi Avramov9-Jan-06 4:07

Dudi Avramov

9-Jan-06 4:07

Try Empower Your Printing with Custom Print Processors

Re: Printer Monitoring

David Crow9-Jan-06 4:18

David Crow

9-Jan-06 4:18

I think micutzu would benefit more from this suggestion.

"The words of God are not like the oak leaf which dies and falls to the earth, but like the pine tree which stays green forever." - Native American Proverb

Re: Printer Monitoring

micutzu10-Jan-06 1:55

micutzu

10-Jan-06 1:55

Thank you very much for your comments. I will read both articles and I hope it will help me.

Best Regards,

micutzu.

create window

Anu_Bala9-Jan-06 1:04

Anu_Bala

9-Jan-06 1:04

In MDI,I want a child window with some text from Main window menu list and also from tool bar?

Re: create window

toxcct9-Jan-06 2:06

toxcct

9-Jan-06 2:06

really needed to re-ask ?? Unsure | :~

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20][VisualCalc 3.0]

\0 esc-characters in 4-byte-characters

bytefactory9-Jan-06 0:54

bytefactory

9-Jan-06 0:54

i run in a very strange c++ compiler problem.

until now i used the definition 'id' which gave me the right value ( = 0x00006964 ).
because i compile under window, mac and linux and the mac gcc compiler complains about wrong 4-byte-characters i added '\0\0id' to the definition which should give in my opinion the same result. but the vc++ and intel c++ compiler generates other values.

'id' = 0x00006964
'\0\0id' = 0x64690000

' id' = 0x20206964
'\40\40id' = 0x64692020

the most interesting things are the last 2 lines. what is the difference between a space written as space or as a esc-character? ... why does the compiler generates swapped values?

that doesn't makes sense to me ... any hints would be great ...

thanks
tilo

Re: \0 esc-characters in 4-byte-characters

C^hris L^osinger9-Jan-06 1:34

C^hris L^osinger

9-Jan-06 1:34

google "Intel Byte Order"

Cleek | Image Toolkits | Thumbnail maker

Re: \0 esc-characters in 4-byte-characters

bytefactory9-Jan-06 1:37

bytefactory

9-Jan-06 1:37

it's not the byteorder why i'm surprised. i'm confused because the 3rd line gives another byteorder than the 4th line with the same compiler and machine ...

tilo

Re: \0 esc-characters in 4-byte-characters

C^hris L^osinger9-Jan-06 1:43

C^hris L^osinger

9-Jan-06 1:43

what code are you using to do the assignment ?

Cleek | Image Toolkits | Thumbnail maker

Re: \0 esc-characters in 4-byte-characters

bytefactory9-Jan-06 1:51

bytefactory

9-Jan-06 1:51

e.g.

#define ANY_ID_1 'id' // gives the warning under gcc mac
#define ANY_ID_2 ' id' // gives the same byteorder like 'id'
#define ANY_ID_3 '\0\0id' // has the wrong byteorder

i use the defines as longs ...

cheers
tilo

Re: \0 esc-characters in 4-byte-characters

C^hris L^osinger9-Jan-06 2:15

C^hris L^osinger

9-Jan-06 2:15

the compiler is probably treating '\40\40id' as a numeric literal (which causes the machine's byte-order rules for numerics to get involved).

it probably sees ' id' as a string literal (even though you shouldn't put multiple characters inside single quotes), and ends up doing something like:

char *p = " id";
long f = *(long*)p;

Cleek | Image Toolkits | Thumbnail maker

Re: \0 esc-characters in 4-byte-characters

bytefactory9-Jan-06 2:50

bytefactory

9-Jan-06 2:50

hmmm ... strange things happens ...

i tried this one here ...

char *p = "\0\0id";
long f = *(long*)p;

if running this code f results in 0x64690000 ... that's exactly the same what the compiler generates with the constant '\0\0id' .. and that's swapped compared to 'id' which results in 0x00006964 ?!?!?!?!

this is one of the days where i don't understand compilers Smile | :)

... i want that the compiler generates the same constant when i write 'id' and '\0\0id' because this is obviously the same (for me!)

cheers
tilo

Re: \0 esc-characters in 4-byte-characters

C^hris L^osinger9-Jan-06 3:00

C^hris L^osinger

9-Jan-06 3:00

bytefactory wrote:
i want that the compiler generates the same constant when i write 'id' and '\0\0id' because this is obviously the same (for me!)

Re: \0 esc-characters in 4-byte-characters

bytefactory9-Jan-06 3:23

bytefactory

9-Jan-06 3:23

that would work but make a lot of work at another place in the program because i use the includefiles are parsed with an own scripting language that understands only 'xxxx' and numbers Smile | :)

thanks for the suggestion ...
tilo

Re: \0 esc-characters in 4-byte-characters

Sebastian Schneider9-Jan-06 3:01

Sebastian Schneider

9-Jan-06 3:01

This is just a shot into the blue, but isn't Unicode basically not a system type? Like, int would be "swapped" on little endian/big endian" but unicode would be the exact same binary pattern?

I remember being lectured on something like that, but I might be way off here.

Cheers,
Sebastian

--
Contra vim mortem non est medicamen in hortem.

create new window

Anu_Bala9-Jan-06 0:44

Anu_Bala

9-Jan-06 0:44

How to create a new window(child window) from menu list...and also from toolbar?

Re: create new window

Anilkumar K V9-Jan-06 0:49

Anilkumar K V

9-Jan-06 0:49

I did'nt get your question..Please add more information

Re: create new window

toxcct9-Jan-06 0:55

toxcct

9-Jan-06 0:55

what is a window ?

i give you the example for a new dialog box. if you want something else, make the conversion.

when you click on a toolbar button, on on a menu item, handle the WM_COMMAND event that is thrown, and overload it :

void OnSClickMenuAbout() {
    CAboutDlg dlg;
    dlg.DoModal();
}

(here i consider you open the "About" DialogBox on clicking its item in the menu...)

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20][VisualCalc 3.0]

Re: create new window

Eytukan9-Jan-06 2:55

Eytukan

9-Jan-06 2:55

Anu_Bala wrote:
(child window)

may be she must be talking about MDI. Unsure | :~

"But your mind is very complex, very tricky. It makes simple things complicated. -- that's its work. And for centuries it has been trained for only one thing: to make things so complicated that your life becomes impossible."- Osho

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Re: create new window

toxcct9-Jan-06 3:00

toxcct

9-Jan-06 3:00

i only gave an example... Smile | :)

the

CAboutDlg dlg;

line can be replaced with something like :

CChildFrame frm(this);

where this is the parent for instance...

i hope the guy can search for infos by himself, and not waiting for everything well done and well written, until he just have to copy/paste the solution in his code...
Cool | :cool:

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20][VisualCalc 3.0]

Re: create new window

Eytukan9-Jan-06 3:13

Eytukan

9-Jan-06 3:13

hmmmm

OT:How was your holidays buddy?

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[OT]

toxcct9-Jan-06 3:21

toxcct

9-Jan-06 3:21

VivekuniQ wrote:
How was your holidays buddy?

hummm, very nice !!!

i took time with soome of my friends i didn't see since almost 1 year...
i saw back my little brother an my mom'... enjoyed the fresh snow of the alps... got very tired to go to bed late every nights Sleepy | :zzz:

but now, everything's ok. i'm back in the sweet arms of my girlfriend, i've signed for a new contract at the office, so, Year 2006 starts very well for li'le tox' !! :->

and you ? what did you do during these 2 weeks ? and how are you buddy !?

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20][VisualCalc 3.0]

Re: [OT]

Eytukan9-Jan-06 3:25

Eytukan

9-Jan-06 3:25

toxcct wrote:
and you ? what did you do during these 2 weeks ? and how are you buddy !?

Just a moment!. attendez monseiur.i'll be back.

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