.cab files read in binary mode - C / C++ / MFC Discussion Boards

Programm3r9-Nov-06 2:49

9-Nov-06 2:49

Hi all,

I have this string, that would look something like this:

ZA123654PCNAME

I want to break the string apart like this:

ZA123654 (Please note that this piece is not constant)
PCNAME
I have tried to get the secondnd part (by doing the following: below), but how can I get the first part, this is if I'm doing it correctly..

<br />
if(strncmp((char *)strstr(Request,(char*)"PCNAME"),(char *)"PCNAME",6)==0)<br />

Thanx in advance

-- modified at 8:57 Thursday 9th November, 2006

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r

Re: Substing in VC++

Cedric Moonen9-Nov-06 2:58

Cedric Moonen

9-Nov-06 2:58

On which 'parameters' do you split the string ? I mean, how do you know which is the first part of the string and which is the last part of the string ? Are all the strings the same size ? If not, is there a delimiter character ? Or what ? By looking at your code, it seems that the last part is always PCNAME and is always 6 char long.

So, you can then compute the lenght of the first part:
int Len = strlen(Request) - 6;

Then, you can copy up to Len characters of your string in a buffer:
strncpy(szBuff,Request,Len);

If that's not the case, please provide more information about how you want to split the string.

Cédric Moonen
Software developer

Charting control [Updated - v1.1]

Re: Substing in VC++

Programm3r9-Nov-06 3:09

Programm3r

9-Nov-06 3:09

My bad Cédric ...

I forgot to mention that there is a space between the first part and the PCNAME. And yes PCNAME will always be a constant.

But thank you so much, I really appreciate the help (code provided works).

Regards

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r

Re: Substing in VC++

XtremDev9-Nov-06 3:18

XtremDev

9-Nov-06 3:18

Just for fun and if your interrested in that solution,
try this :

char string[] = "abc def ghi";<br />
char * token = strtok(string, " ");<br />
while( token )<br />
{<br />
    printf("[%s]\n", token);<br />
    token = strtok(NULL, " ");<br />
}

Re: Substing in VC++

Programm3r9-Nov-06 3:49

Programm3r

9-Nov-06 3:49

Thanx XtremDev ... I'll check it out ... Smile | :)

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r

Re: Substing in VC++

David Crow9-Nov-06 3:13

David Crow

9-Nov-06 3:13

« Programm3r » wrote:
if(strncmp((char *)strstr(Request,(char*)"PCNAME"),(char *)"PCNAME",6)==0)

In this context, both strstr() and strncmp() are doing redundant work. If strstr() returns a non-NULL pointer, it means that "PCNAME" was found in Request. Therefore, there's no need to follow that with a call to strncmp(). Similarly, if strstr() returns a NULL pointer, strncpy() will fail. Make sense?

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Re: Substing in VC++

Programm3r9-Nov-06 3:49

Programm3r

9-Nov-06 3:49

David ... your to clever bro... Smile | :)

.. but to answer your question ... It makes sense ... kinda Smile | :)

The only programmers that are better than C programmers are those who code in 1's and 0's..... Smile | :)

Programm3r

.cab files read in binary mode

apoorva_raje9-Nov-06 2:37

apoorva_raje

9-Nov-06 2:37

my code splits a large chunk of folders and files into multiple disks. every file is read in binary mode and written in a disk using fopen(), fgetc(), fputc() till its capacity is exceeded.

the code also integrates the disks into one. now every kind of file is running smoothly (.exe .txt etc) except .cab files. it says the xyz.cab file is corrupt.

what cud be the prob?

thx

Re: .cab files read in binary mode

Monty²9-Nov-06 2:43

Monty²

9-Nov-06 2:43

well it should work you are using unsigned char right?
try with fread and fwrite

Jesus loves you. But I'm his favorite.

Re: .cab files read in binary mode

apoorva_raje9-Nov-06 3:03

apoorva_raje

9-Nov-06 3:03

tried that already.. not working.. thanks anyways.. Smile | :)

Re: .cab files read in binary mode

David Crow9-Nov-06 3:15

David Crow

9-Nov-06 3:15

apoorva_raje wrote:
...written in a disk using fopen(), fgetc(), fputc()...

Do you enjoy reading & writing one byte at a time?

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Win32 clipboard

WernerP9-Nov-06 1:49

WernerP

9-Nov-06 1:49

Hi,

I have tried to use the Win32 clipboard API to copy text to the clipboard, but ist doesn't show up when I try to paste it to a text editor. There is also no Clipboard Format available in the clipboard when I use EnumClipboardFormats. I've used a tutorial cooking book to write that code.

Can you say what's wrong?
Thanks.

void Clipboard::setTo(string const strData)
{
string::size_type const sizeData = strData.size() * sizeof(TCHAR);
HANDLE hData = ::GlobalAlloc(GMEM_MOVEABLE|GMEM_ZEROINIT, sizeData);
if (hData) {
LPTSTR tszData = static_cast<LPTSTR>( ::GlobalLock(hData) );
memcpy(tszData, strData.c_str(), sizeData);
::GlobalUnlock(hData);
::OpenClipboard(NULL);
::EmptyClipboard();
::SetClipboardData(CF_TEXT, hData);
}

UINT uiFmt = 0;
do {
uiFmt = ::EnumClipboardFormats(uiFmt);
} while (0 != uiFmt);

::CloseClipboard();
}

Werner

Re: Win32 clipboard

Monty²9-Nov-06 2:20

Monty²

9-Nov-06 2:20

 void CopyToClipBoard(char * buf,DWORD MAXSIZE)
{
     HANDLE handle;
     char * str;          //This has the data that is to be copied to the clipboard
     if(OpenClipboard(NULL))
     {
          EmptyClipboard();

          handle = GlobalAlloc(GMEM_MOVEABLE,MAXSIZE+1);
          if(handle)
          {
               str = (LPTSTR)GlobalLock(handle); 
               memcpy(str,buf,MAXSIZE);
               GlobalUnlock(handle); 
               SetClipboardData(CF_TEXT, handle); 
          }
          CloseClipboard();
     }
}

Does this work?

I don't believe in failure. It is not failure if you enjoyed the process.

Re: Win32 clipboard

David Crow9-Nov-06 3:19

David Crow

9-Nov-06 3:19

Have you used the debugger to check return values, and the value of variables such as size_type, hData, and tszData? What does SetClipboardData() return?

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

SetThreadPriority

messages9-Nov-06 0:43

messages

9-Nov-06 0:43

Hi everyone,
If I run SetThreadPriority and set a value for nPriority it return Nonzero but I cant see any change.
why it doesnt work?
Thanks

Re: SetThreadPriority

Mark Salsbery9-Nov-06 5:16

Mark Salsbery

9-Nov-06 5:16

messages wrote:
...I cant see any change

Where do you expect to see a change?

Re: SetThreadPriority

messages9-Nov-06 8:16

messages

9-Nov-06 8:16

Thanks Mark for your reply
I want to know if I change priority what happen if I change normal to low or...?

Re: SetThreadPriority

Mark Salsbery9-Nov-06 8:24

Mark Salsbery

9-Nov-06 8:24

SetThreadPriority()[^]

See the "Remarks" section... sums it up pretty well.

Creating a PDF file

_Tom_8-Nov-06 23:41

_Tom_

8-Nov-06 23:41

Hi
I have a need to generate reports, in PDF, in my VC++ application. I've seen numerous libraries that will take the pain away and make my life easier but I'd like to create my own library that will allow me to generate these reports.

If anyone could point me in the direction of some examples or tutorials I would be grateful.

Thanks

Re: Creating a PDF file

Rudolf Jan9-Nov-06 0:10

Rudolf Jan

9-Nov-06 0:10

I think the easiest way is to preapre your reports for printing in the traditional way and send them to a PDF application. There are a number of free applications available. I tkink it must be possible to change the interfacing to the printer classes so that they look like a create PDF button or whatever you like.

Re: Creating a PDF file

Hamid_RT9-Nov-06 1:14

Hamid_RT

9-Nov-06 1:14

Is How to create PDF file in Visual C++: "Hello, PDF!" example[^] helpfuls

WhiteSky

Re: Creating a PDF file

Cedric Moonen9-Nov-06 1:36

Cedric Moonen

9-Nov-06 1:36

He specifically said that he wanted to do that by himself. Did you take a look at the link you provided ?

Cédric Moonen
Software developer

Charting control [Updated - v1.1]

Re: Creating a PDF file

Aqueel9-Nov-06 1:47

Aqueel

9-Nov-06 1:47

humm i think that link is quite good. This tutorial can help baerten. As i think he is afraid of those libraries. So this link helps.

We Believe in Excellence
www.aqueelmirza.cjb.net

Re: Creating a PDF file

Sebastian Schneider9-Nov-06 1:52

Sebastian Schneider

9-Nov-06 1:52

Adobe has, on their site, a developer section containing links to the PDF standard documentation.

Cheers,
Sebastian

--
Contra vim mortem non est medicamen in hortem.

Re: Creating a PDF file

_Tom_9-Nov-06 2:05

_Tom_

9-Nov-06 2:05

Thanks, I visited Adobe and the reference material is quite good, however it lacks real world examples, e.g. if you'd like to create a table or insert an image things start to go wrong very quickly.

Also I created a pdf by printing a word document through a driver I found and if you open the file in textpad you cant see any of the text, as if its been hidden away or encoded in some way.

There seems to be a variety of Libraries out there and Text3PDF on code project is very good but I'd really like to create my own library, so I dont have to worry about license fees, having my own license updated or pay royalities.

This really seems to be a tricky area... Thanks for all the help tho, as it really helpful.

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