C / C++ / MFC

PowerPoint File Processing w/out office automation? $$$

28-Jun-03 6:57

Here is a link to MSDN that shows a good design sample from Microsoft.

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnfiles/html/msdn_serial.asp

Kuphryn

RickGavin27-Jun-03 12:46

RickGavin

27-Jun-03 12:46

Hi All,
Anyway know how to process PowerPoint files other than using office automation? I need a threaded service, COM SERVER, etc, etc, that can export the slides from a PowerPoint deck, into individual images, like jpegs. I wrote a simple ASP COM object using the automation APIs, but it seems that its not threaded so multiple requests end up getting queued, just not a very good solution. If anyone knows of anything, please let me know.

Thanks,

Rick

Re: PowerPoint File Processing w/out office automation? $$$

Ryan Binns27-Jun-03 17:03

Ryan Binns

27-Jun-03 17:03

Either write your own file parser/renderer, or download the OpenOffice[^] source code and extract the PowerPoint stuff. However, it's not that simple - The source is about 180MB compressed...

You might be able to find a commercial solution, but I've been looking for something similar and haven't found anything yet.

Ryan

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Matrix! HELP!!!!

Sunnygirl27-Jun-03 11:23

Sunnygirl

27-Jun-03 11:23

hello @all,

i want to make a two dimensional matrix.
how can i do this? can anybody help me?

thank you very much
sunny

valikac27-Jun-03 11:27

27-Jun-03 11:27

Do you want a static matrix or a dynamic matrix?

Kuphryn

Anonymous28-Jun-03 9:28

Anonymous

28-Jun-03 9:28

thanks for reply.

i want a dynamic matrix!

thank you very much!!!
sunny

valikac28-Jun-03 9:37

28-Jun-03 9:37

Okay. Here is an example of a two-dimensional array of char using dynamica allocation.

unsigned int nSize = 100;
char *text = new char*[nSize]

for (unsigned int i = 0; i < nSize; ++i)
text[i] = new char[nSize];

...
// Deallocation

Kuphryn

Dominik Reichl27-Jun-03 20:59

Dominik Reichl

27-Jun-03 20:59

A chessboard matrix:

unsigned char pChess[8][8];

To access element 5,1 you would do it like this:
unsigned char u = pChess[1][5];

Dynamic matrix creation is a bit more difficult...

Big Grin | :-D

-Dominik

_outp(0x64, 0xAD);
and
__asm mov al, 0xAD __asm out 0x64, al
do the same... but what do they do??

Getting the rect of the text in a Static

Anonymous28-Jun-03 9:29

Anonymous

28-Jun-03 9:29

hello,

thanks for reply!!!!!
but i need a dynamic matrix!

can you help me?

thank you very much!
sunny

Tommy2k27-Jun-03 11:21

Tommy2k

27-Jun-03 11:21

Is there any good way to do this or do I know a workaround of some sort?

basementman27-Jun-03 11:41

basementman

27-Jun-03 11:41

To get the rect of the control or of the text itself?

// Control:
CRect oR;
CWnd *pStatic = GetDlgItem(IDC_THE_STATIC_CTRL);
pStatic->GetWindowRect(&oR);
ScreenToClient(&oR);

// bounding rectangle of static's text contents
CString cText;
GetDlgItemText(IDC_THE_STATIC_CTRL,cText);

CWnd *pStatic = GetDlgItem(IDC_THE_STATIC_CTRL);
pStatic->GetClientRect(&oR);

CDC *pDC = pStatic->GetDC();
pDC->DrawText(cText,&oR,DT_CALCRECT|DT_LEFT|DT_SINGLELINE|DT_TOP);
pStatic->ReleaseDC(pDC);

// oR now has the bounding rectangle needed to display the text.

onwards and upwards...

Tommy2k27-Jun-03 11:58

Tommy2k

27-Jun-03 11:58

Wouldn't it be better to just make a memDC so the text itself won't show up on the control (it's already there ofcourse)? Or doesn't it do this anyway?

John M. Drescher27-Jun-03 12:33

John M. Drescher

27-Jun-03 12:33

With the DT_CALCRECT the drawtext does not go to the screen it just calculates the rect.
John

Tommy2k27-Jun-03 12:38

Tommy2k

27-Jun-03 12:38

Great! Thnx

valikac27-Jun-03 11:42

Read a line from a file HANDLE

27-Jun-03 11:42

One solution is to get the rect of the entire edit windows and then use GetTextExtent() to take add and subtract unit size.

Kuphryn

Blueapples27-Jun-03 11:14

Blueapples

27-Jun-03 11:14

Hi. I'm doing a project where I open a COM port with CreateFile() to do some device accessing. I have writing working fine, but now I'm trying to figure out how to read one line of text from the COM port. The function fgets() would be nice, but it's for FILE structures and I have a HANDLE pointer to the open file.

Is their either
a) a function to create a FILE structure from a HANDLE, or
b) an existing function that does what I want?

I have created a function that I thought would read a file, but it crashes in the Kernel on my call to ReadFile(). Besides, I feel stupid writing such a basic function that I think must be already part of the Win API

I post in this forum because I actually am doing this in an MFC program, and I'm open to MFC solutions.

Thanks in advance.

<br />
/* My function... */<br />
LPSTR ReadLine( HANDLE hFile )<br />
{<br />
    char            c;<br />
    LPSTR            szBuffer;<br />
    unsigned int    pos = 0;<br />
    BOOL            fContinue = true, fCR = false;<br />
    LPDWORD            lpBytesRead = 0;<br />
<br />
    szBuffer = (LPSTR)malloc( 256 );<br />
<br />
    if( szBuffer != NULL )<br />
    {<br />
        while( ReadFile( hFile, &c, 1, lpBytesRead, NULL ) != 0 && fContinue )   ////// ** crashes here ** /////<br />
        {<br />
            switch( c )<br />
            {<br />
            case 0x0A:<br />
                fCR = true;<br />
                break;<br />
            case 0x0D:<br />
                if( fCR )<br />
                {<br />
                    fContinue = false;<br />
                    fCR = false;<br />
                }<br />
                break;<br />
            default:<br />
                fCR = false;<br />
                szBuffer[pos] = c;<br />
                pos ++;<br />
                if( pos == sizeof( szBuffer ) ) <br />
                    fContinue = false;<br />
            }<br />
        }<br />
<br />
        szBuffer[pos] = 0;<br />
    }<br />
<br />
    return szBuffer;<br />
}

basementman27-Jun-03 11:43

basementman

27-Jun-03 11:43

You may want to look at the function

FILE *_fdopen( int handle, const char *mode );

creates a FILE * from a raw file handle.

onwards and upwards...

Blueapples27-Jun-03 12:00

Blueapples

27-Jun-03 12:00

Not working. The example for _fdopen in MSDN uses _open() to open the file that's passed to _fdopen.

_open() returns an int, but CreateFile returns a Windows HANDLE pointer. So, this is the type of function I want, but it's required arguments aren't what I have.

Toni7827-Jun-03 12:15

Toni78

27-Jun-03 12:15

Reading from a COM port is not as straight forward as you might think. You have to create a thread that checks the port constantly for a "data received" signal. Whether you like it or not, you have to use ReadFile(). Check MSDN on serial communications because they have examples there.

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