Re: Problem in using system() - C / C++ / MFC Discussion Boards

Re: Save CBitmap to File

Hamid_RT28-Nov-08 1:49

Hamid_RT

28-Nov-08 1:49

Change to it: Wink | ;)

if(fd.DoModal() == IDOK)
sFName = fd.GetPathName();
else
return;
CImage m2;
m2.Attach(Capture);
m2.Save(fd.GetPathName());
m2.Detach();
/*HANDLE hDib = DDBToDIB( Capture, BI_RGB, NULL );
BOOL b = WriteDIB( sFName.GetBuffer(sFName.GetLength()) , hDib);
if(!b)
{
CString sMess = _T("Unable to write to file: \n");
sMess += sFName;
AfxMessageBox(sMess);
} */
MemDC.SelectObject(Capture);
Capture.Detach();

Re: Save CBitmap to File

Dhiraj kumar Saini28-Nov-08 2:33

Dhiraj kumar Saini

28-Nov-08 2:33

Thanx its working.

Re: Save CBitmap to File

Hamid_RT28-Nov-08 2:34

Hamid_RT

28-Nov-08 2:34

You're welcome. Wink | ;)

SQL 2005 data insertion issue

Riaan77727-Nov-08 0:39

Riaan777

27-Nov-08 0:39

Hello,

I am not sure if this is the right forum to post this question as it relates more to ODBC & SQL, but I'm using C++ for this particular app, so here goes:

We are dynamically creating tables in a SQL 2005 database to store log data - a new table for each day. The problem is that it works fine for about 8 days to 2 weeks and then just creates the log table for the new day, but stops writing entries into the table. When I drop the oldest log table from the database it again starts logging into the newest table.

I've verified that autogrow is turned on for the database & that there is no size limit set. The funny thing is it does actually autogrow, but only to a certain point (there is more than enough hard drive space available). It is on various machines on various sites we are getting this behavior, so it can't be the SQL installation.

Has anyone dealt with something like this before?

Thanks in advance,

Riaan du Plessis

Problem in using system()

Nandu_77b27-Nov-08 0:35

Nandu_77b

27-Nov-08 0:35

Is there any way to perform "TOUCH" (like TOUCH in UNIX) in windows, with out installing any tools?

From the site : "http://support.microsoft.com/kb/69581, I came to know that we can use COPY command to perform TOUCH like operation. and tried the below command. but I got the error "The system cannot find the file specified."
system ( "/COPY C:/Documents and Settings/ms56106/.tdm/CookieSession_Details.txt /B +");

So please help to fix this. Below are the different options I tried, but no clue.

1) I Have executed the below command from command prompt it works fine.

C:\Documents and Settings\ms56106\.tdm> COPY /B "C:/Documents and Settings/ms56106/.tdm/CookieSession_Details.txt" +
1 file(s) copied.

And if try the same from different folder it fails,

C:\Documents and Settings\ms56106> COPY /B "C:/Documents and Settings/ms56106/.tdm/CookieSession_Details.txt" +
The system cannot find the file specified.
0 file(s) copied.

What should I do to run for a different folder?

2) I want the same command to be used in C++ source, for this I tried the same with system(), but it is not working. Please correct me.

tem = C:/Documents and Settings/ms56106/.tdm/CookieSession_Details.txt
system ( "/COPY tem /B +");

Thanks,
Nandu

Re: Problem in using system()

Code-o-mat27-Nov-08 0:42

Code-o-mat

27-Nov-08 0:42

Shouldn't you be using \ instead of / in the paths? Like, "C:\Documents and Settings\ms56106..." instead of "C:/Documents and Settings/ms56106..."? Don't know if that makes any difference though...

> The problem with computers is that they do what you tell them to do and not what you want them to do. <

Re: Problem in using system()

Nandu_77b27-Nov-08 1:19

Nandu_77b

27-Nov-08 1:19

In system() function i am using "\". But this is not the problem.

Re: Problem in using system()

sashoalm27-Nov-08 2:42

sashoalm

27-Nov-08 2:42

All WIN32 API functions all accept both '/' and '\' (for NT at least), only some old command-line tools written for DOS might give you a problem there.

There is sufficient light for those who desire to see, and there is sufficient darkness for those of a contrary disposition.
Blaise Pascal

SAFEARRAY [modified]

Vijjuuu.26-Nov-08 23:32

Vijjuuu.

26-Nov-08 23:32

Hi All,

How can i pass , BYTE array parameter from VC++ 6.0 to OLE Server to SAFEARRAY Argument.

Regards
Vj

modified on Thursday, November 27, 2008 5:43 AM

Re: SAFEARRAY

Roger Stoltz27-Nov-08 1:40

Roger Stoltz

27-Nov-08 1:40

How is the function you're calling declared?

[modified]

I mean the function in the server.
What kind of argument are you supposed to pass, a VARIANT that contains a SafeArray?

[/modified]

"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown

Re: SAFEARRAY

Vijjuuu.27-Nov-08 1:49

Vijjuuu.

27-Nov-08 1:49

Hi Roger,

Thanks for you reply ,
i have written a dll in C#.net and using RegAsm i created a .tlb file and i am using those functions in VC++6.0

C# function

void fun(byte[] input)

which is conveted to void fun(SAFEARRAY *input) in .tlb file .

now i dont know how to pass BYTE array to this fun function from VC++ 6.0

Re: SAFEARRAY

Roger Stoltz27-Nov-08 4:04

Roger Stoltz

27-Nov-08 4:04

Ok, try the following:

Create a SafeArray with a call to ::SafeArrayCreate() and set the VARTYPE parameter to VT_UI1.
Get the data buffer of the SafeArray with a call to ::SafeArrayAccessData() and copy whatever data you'd like into the buffer.
Release the bufer when you're done with it with a call to ::SafeArrayUnaccessData().
Call the fun() function.

Look the SafeArray functions up for information on how to call and use them.
Begin at SafeArrayCreate[^].

"It's supposed to be hard, otherwise anybody could do it!" - selfquote
"High speed never compensates for wrong direction!" - unknown

Re: SAFEARRAY

Vijjuuu.27-Nov-08 4:23

Vijjuuu.

27-Nov-08 4:23

Roger,
Thank you so much for your time to reply it.

[Message Deleted]

AnithaSubramani26-Nov-08 23:19

AnithaSubramani

26-Nov-08 23:19

[Message Deleted]

Re: ReadData() in serialport communication

CPallini26-Nov-08 23:26

CPallini

26-Nov-08 23:26

0x0f is not a NULL (that is 0x00).
Why did you expect 'i' (it looks like your device sends binary data)?
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

Re: ReadData() in serialport communication

Cedric Moonen27-Nov-08 0:15

Cedric Moonen

27-Nov-08 0:15

Why are you opening the serial port twice ? You can read and write from the same CSerial instance. BTW, from where is this CSerial class coming from ?

Cédric Moonen
Software developer

Charting control [v1.5]
OpenGL game tutorial in C++

i want make an mfc applicatio for screen capturing

Dhiraj kumar Saini26-Nov-08 23:15

Dhiraj kumar Saini

26-Nov-08 23:15

Hello,

I want to make a very small application capable of screen capturing.

Plaese help me with some example.

Thanks & Regards.
Dhiraj

Re: i want make an mfc applicatio for screen capturing

Code-o-mat26-Nov-08 23:44

Code-o-mat

26-Nov-08 23:44

You could try something like this, don't know if this actually works or not, didn't try it, but it can be a starting point for you, good luck:

CDC ScreenDC;
ScreenDC.Attach(::GetDC(NULL));

CBitmap Capture;
CSize   Dimensions(GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN));
Capture.CreateCompatibleBitmap(&ScreenDC, Dimensions.cx, Dimensions.cy);

CDC MemDC;
MemDC.CreateCompatibleDC(&ScreenDC);

CBitmap *OldBitmap = MemDC.SelectObject(&Capture);

MemDC.BitBlt(0, 0, Dimensions.cx, Dimensions.cy, &ScreenDC, 0, 0, SRCCOPY);

MemDC.SelectObject(OldBitmap);
MemDC.DeleteDC();

::ReleaseDC(NULL, ScreenDC.Detach());
//At this point the bitmap 'Capture' should contain an image of the desktop

> The problem with computers is that they do what you tell them to do and not what you want them to do. <

[Message Deleted]

AnithaSubramani26-Nov-08 23:02

AnithaSubramani

26-Nov-08 23:02

[Message Deleted]

Re: Doubt in serial port communication

CPallini26-Nov-08 23:22

CPallini

26-Nov-08 23:22

Actually you know the logic. Maybe you don't know the realtive API.
What are your doubts about? Are you able to open and read the file?
Are you able to open and write to the serial port?
Smile | :)

Linking Error

john563226-Nov-08 20:08

john5632

26-Nov-08 20:08

Hi,

I am using a 3rd party library(.h and .lib file) in my project.
I create one win32 app It is running successfully. But whe I tried to same library with SDI app It is giving LNK 2019 linking error although I have add the library name in project settings.

This library have 4 function but linking errors is coming for only 2.
If I comment these 2 function, program succeed .

Could you tell me what might me the problem, I am using vc.net 2003

Re: Linking Error

CPallini26-Nov-08 21:07

CPallini

26-Nov-08 21:07

See, for instance, this [^].
Smile | :)

copy data from memory

samira forooghi26-Nov-08 19:56

samira forooghi

26-Nov-08 19:56

hi every one

i want copy data from memory.is it possible ?
there are many tools for dumping process from memory but i want dump data from memory.
for example i want dump Stream of one pdf or doc file from memory . is it possible?
plz introduce me tool or articles about it.

thanks a lot

Re: copy data from memory

CPallini26-Nov-08 21:09

CPallini

26-Nov-08 21:09

Probably I haven't got you. Do you really indend to dump the file content?
Confused | :confused:

Open Application through shoutcutkey [modified]

MsmVc26-Nov-08 19:05

MsmVc

26-Nov-08 19:05

Hi All

I want to open a application through shortcut key which is runing in background.Can any one tell me how can i do this?Plz help me

modified on Thursday, November 27, 2008 1:12 AM

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