C / C++ / MFC

16-Jun-05 4:24

I'm having trouble opening a 3 GB file. I've never had to open a file so large before and I'm nost sure what to do. I've tried fopen and open functions but the program fails to open the file. Any suggestions?

David Crow16-Jun-05 4:42

David Crow

16-Jun-05 4:42

How are you attempting to open it? The fopen() and open() functions should be limited to older C programs. For newer Windows programs, use CreateFile() instead.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Camron16-Jun-05 5:26

16-Jun-05 5:26

To use CreateFile() I must have the Coredll.lib. Where do I find this lib?

Camron16-Jun-05 5:32

16-Jun-05 5:32

Oops..nevermind I was in the WindowsCE part of MSDN..

Graham Bradshaw16-Jun-05 5:28

Graham Bradshaw

16-Jun-05 5:28

You're still in 32-bit land with 3GB, but this may help:

http://www.naughter.com/cfile64.html[^]

Camron16-Jun-05 5:53

how to add MFC CStatic to a ATL project?

16-Jun-05 5:53

Thanks so much for your help...CreateFile worked..

ThinkingPrometheus16-Jun-05 3:49

ThinkingPrometheus

16-Jun-05 3:49

hiho@ll

i try to do something like a newsticker on a browser helper object
the problem is that the helper object is made using ATL and i want to use CStatic (because there are some classes, which scroll text using a CStatic)

my problem is that CStatic is a MFC class and i need it for my ATL browser object!?

are there alternatives or other controls i could use for my problem?

btw, is it possible to convert my BHO to a MFC BHO?
or is MFC BHO not supported by IE?
if it's possible, how can i do it (easily, without troubles?)
I'm using Visual Studio .NET

thx

John M. Drescher16-Jun-05 4:10

John M. Drescher

16-Jun-05 4:10

ThinkingPrometheus wrote:
my problem is that CStatic is a MFC class and i need it for my ATL browser object!?

You can not directly add a mfc class to ATL.

John

ThinkingPrometheus16-Jun-05 4:29

ThinkingPrometheus

16-Jun-05 4:29

and how can i make just a simple static text control in ATL?

James R. Twine16-Jun-05 8:28

James R. Twine

16-Jun-05 8:28

   You already have one. A static control (STATIC) is a regular Windows control, just like BUTTON, EDIT, etc.

   You are still going to have to do some drawing yourself; the regular static control works by characters, and does not "smooth scroll" like a news/stock ticker.

   Peace!

-=- James

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vikas amin26-Aug-05 2:56

vikas amin

26-Aug-05 2:56

How do i use the STATIC in my ATL projects i am new to ATL.

Vikas Amin
Embin Technology
Bombay
vikas.amin@embin.com

Converting a metafile to a 24-bit color bitmap

James R. Twine6-Sep-05 16:46

James R. Twine

6-Sep-05 16:46

   Using CreateWindow, you just specify the string _T( "STATIC" ) as the window class name, IIRC.

   I think that ATL's window classes have a wrapper class for the static control.

   Peace!

-=- James

help needed

amneetKAUR16-Jun-05 3:39

amneetKAUR

16-Jun-05 3:39

hello all

can you please help me with one thing
i need to know about a very good security application on the internet which i can implement using VB.
sumthing like a digital signature/certificate and stuffs like that.

or maybe an email security thing.
i need it for a project,where i will compress a file,ecrypt it and then send it on the net.i need an amazing security application which is in VB.

plz help

hey there,v are sailing in the same boat

bkphat16-Jun-05 3:25

bkphat

16-Jun-05 3:25

i got this out of an article:

Converting a metafile to a 24-bit color bitmap is simple. Just follow these steps:

Create the memory DC.
Create the device-independent bitmap.
Select the bitmap to the created memory DC.
Draw in this DC.
Select the old bitmap to DC.

I have the Metafile Created. Howevere the above instructions do not make any sense. can anayone please help me?

thanks

Re: Converting a metafile to a 24-bit color bitmap

C^hris L^osinger16-Jun-05 3:50

C^hris L^osinger

16-Jun-05 3:50

here it is with no error checking and no cleanup - both of which are very important.

HDC memDC = ::CreateCompatibleDC(hDC);
HBITMAP memBmp=::CreateCompatibleBitmap(hDC, w, h);
HBITMAP oldBMP = (HBITMAP)::SelectObject(memDC, memBmp);
::PlayEnhMetaFile(memDC, emf, &tRex);
::SelectObject(memDC, oldBMP );

Cleek | Image Toolkits | Thumbnail maker

COM Port

A_Fa16-Jun-05 2:54

A_Fa

16-Jun-05 2:54

I have handle of file for read and write from/to COM port , but I dont know which COM port .
I want understand that this handle is attached to which port (Example COM1 ).
If you can please help me .
Thanks .

Bob Stanneveld16-Jun-05 2:58

Bob Stanneveld

16-Jun-05 2:58

I don't think that I understand your question. I don't know if this[^] is of any help, but the classes are very nice for serial communitation..

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

David Crow16-Jun-05 3:39

David Crow

16-Jun-05 3:39

You have a handle to a COM port but you don't know which COM port (e.g., 1, 2) it is, right? How did you acquire this handle?

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

A_Fa16-Jun-05 7:56

A_Fa

16-Jun-05 7:56

I hook ReadFile API . Handle of file is in ReadFile hook parameters method .

David Crow16-Jun-05 8:08

David Crow

16-Jun-05 8:08

See if this article is of any help.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Toby Opferman16-Jun-05 18:21

Toby Opferman

16-Jun-05 18:21

I have a question. Why do you hook the read file API????? Do you want to hook COM ports? I would instead create a filter driver on top of \device\serial0, serial1, etc. You can read the object manager's Dos Device Name for "COMx" and see what device it's associated with as well, which is usually \device\serial0 in most cases, but not all.

However, it is a much cleaner method of hooking "ReadFile" and you're only called for COM ports (Unless the device is used for multiplex for multiple devices, which is a different story all together.).

8bc7c0ec02c0e404c0cc0680f7018827ebee

A_Fa17-Jun-05 18:47

A_Fa

17-Jun-05 18:47

Thanks for your notice to my question , (Excuse me , I dont know english well )
I want to hook COM Port in WinXP .
Please explain more about <object manager's="" dos="" device="" name="" for="" "comx"=""> .
Thanks alot .

Toby Opferman18-Jun-05 13:47

Toby Opferman

18-Jun-05 13:47

http://www.sysinternals.com

download "Windows Object Viewer" click ong "\\??" or "\\Global" Look for "COM1". It's a symbolic link to a device such as "\Device\Serial0".

A device driver installs itself on the system as "\device\whatever". Applications want to be abstracted from being tied to any one particular device so a common set of "dos device names" are created so the application only uses the common name, which in the background, can be serviced by any device. Your driver letters are all dos device names as well.

8bc7c0ec02c0e404c0cc0680f7018827ebee