C / C++ / MFC

C^hris L^osinger9-Jan-07 5:07

C^hris L^osinger

9-Jan-07 5:07

wrote:
I have a static library and an include file that contains export statements for the library. I thought about using dumpbin to get the symbols out of the library, but there are a lot of symbols and I'm not sure what out of the symbols I'm suppose to pull for a .def file.

you only need the names (and declarations) of the functions and variables you're going to actually use.... right ?

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MR MAB9-Jan-07 5:44

MR MAB

9-Jan-07 5:44

Correct. The static library is already in use and could be used as is in Visual Studio 6.0. However, with changes made in Visual Studio 2003 and above to remove the _io routines, I can no longer link the static libary directly into VS2005. To solve this I assume that I can create a wrapper DLL/import lib on top of the static lib using Visual Studio 6.0, but I'm not sure I understand what I need to do to accomplish this. I only wish to expose the functions that I use. There are about 40 of them.

Mike

C^hris L^osinger9-Jan-07 5:59

C^hris L^osinger

9-Jan-07 5:59

here's how i usually do it:

first, create a "DLL that exports some symbols" project in VC6.

for each function you want to export from the DLL, write a function that goes like this:

Whatever_API_return_Type MyDLLFunction1(params)
{
  return MyLibFunction1(params);
}
Whatever_API return_Type MyDLLFunction2(params)
{
  return MyLibFunction2(params);
}
etc.

then write headers for those functions:

_Whatever_API return_Type MyDLLFunction1(params);
_Whatever_API return_Type MyDLLFunction2(params);
...
_Whatever_API return_Type MyDLLFunction40(params);

build the DLL, being sure to set the proper #define flag to turn on function exporting (see the main header file for your DLL project).

then replace all your MyLibFunction* calls with the corresponding MyDLLFunction* call. link to the DLL's static lib, and that's that...

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MR MAB9-Jan-07 7:49

MR MAB

9-Jan-07 7:49

I was trying to avoid this, because I wanted to preserve the function names. However, this seems like a reasonable workflow, I will just cross my fingers that these functions are not used all over the place. Thanks for your help.

Mike

David Leyva9-Jan-07 5:09

David Leyva

9-Jan-07 5:09

Hi
I know that there are some products that convert DLL to lib, but in your case I think you rigth with your idea.

The steps could be the following:

1. Build a new dll project in vs2005.
2. In your stdafx.cpp add #pragma comment(lib,"mylib.lib")
3. Include your .lib header file in the project.
4. Declare the new functions, maybe with new names.

I expect this steps help you

Regards

David Leyva

File I/O

A_Fa9-Jan-07 4:11

A_Fa

9-Jan-07 4:11

Hi friends .

How possible deleting some char from middle of a very large file ?

thanks a'lot .

Re: File I/O

David Crow9-Jan-07 4:15

David Crow

9-Jan-07 4:15

Copy the bytes from the file, up to the byte in question, into a temporary file. Then copy the remainder of the file into the temporary file. Close both files. Delete the original file. Rename the temporary file. Make sense?

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

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

Re: File I/O

Sceptic Mole9-Jan-07 7:49

Sceptic Mole

9-Jan-07 7:49

DavidCrow wrote:
Copy the bytes from the file, up to the byte in question, into a temporary file. Then copy the remainder of the file into the temporary file. Close both files. Delete the original file. Rename the temporary file. Make sense?

Yes, it's even safer than an 'in place' solution. Smile | :)

(BTW, I'm not 'A_Fa')

From ProcessID

shadrach_india9-Jan-07 3:46

shadrach_india

9-Jan-07 3:46

hi friends

Can i can Windiws Handle(HWND) from ProcessID ?

thanks in Advance

CPallini9-Jan-07 4:35

CPallini

9-Jan-07 4:35

I don't know a direct way.

As workaround, you may enumerate windows and call GetWindowThreadProcessId in your callback.
hope that helps

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.

Stephen Hewitt9-Jan-07 12:00

Stephen Hewitt

9-Jan-07 12:00

A process can have many windows. Can you be more specific?

Steve

shadrach_india9-Jan-07 12:54

shadrach_india

9-Jan-07 12:54

yes , i can give specifi ProcessId

Wrapper class to do minimize to tray and small minus minimize button

Stephen Hewitt9-Jan-07 13:02

Stephen Hewitt

9-Jan-07 13:02

I don't think you understood me properly. A process ID represents a process. A process can have many windows, and generally does. Which of the process’s many windows are you after?

Steve

Axter9-Jan-07 3:10

Axter

9-Jan-07 3:10

I'm looking for a wrapper class that can do minimize to tray and add the small minus minimize button on the top left corner of an application.

I’ve seen code for adding logic to minimize to tray, but I haven’t found any code that can add the small minimize button. For anyone familiar with Kazaa Lite, the minimize button I’m looking for is the one seen on the right upper corner of Kazaa Lite. I’ve seen it on a few other applications, but I don’t remember their names.

Does anyone have any good links for this?

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Re: Wrapper class to do minimize to tray and small minus minimize button

S Douglas16-Jan-07 1:58

S Douglas

16-Jan-07 1:58

Axter wrote:
I'm looking for a wrapper class that can do minimize to tray

I use a modified version of Adding Icons to the System Tray[^] for the tray functions.

Search Articles for "Title Bar" revieled a lot of articles, here is an example Animated System Tray Icon, TaskBar Icon, and TitleBar Icon [^]

I'd love to help, but unfortunatley I have prior commitments monitoring the length of my grass. :Andrew Bleakley:

altering buffer value

ikbahrian9-Jan-07 3:05

ikbahrian

9-Jan-07 3:05

Could some one give me idea how can i do that.

buffer[0]= 0xed
buffer[1]=0xb3

int16_t base= 12 bit(having value 3ed)+ lowest 4 bits are zero

Thanks-

Re: altering buffer value [modified]

David Crow9-Jan-07 3:16

David Crow

9-Jan-07 3:16

base = ((0xb3 << 8) | 0xed) & 0x0fff;

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

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

ikbahrian9-Jan-07 3:33

ikbahrian

9-Jan-07 3:33

thanks man it works Wink | ;)

could u plz tell me one more thing that if I have

(ABC... are bits)

uint8_t n8bit = ABCD EFGH

now I want to change this byte as like

// 0 zero

uint8_t n3bit= 0000 0FGH ???

thanks again..

-- modified at 9:56 Tuesday 9th January, 2007

David Crow9-Jan-07 4:18

David Crow

9-Jan-07 4:18

Your question is a bit unclear (e.g., bits vs. bytes). I think what you want is:

n3bit = n8bit & 0x00000fff;

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

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

jhwurmbach9-Jan-07 4:29

jhwurmbach

9-Jan-07 4:29

n3bit &= 0x07;

7 is the added value for the lowest 3 bits.
Here, Hex an Dec makes no difference, but I have given the hex value fore clarity.

"We trained hard, but it seemed that every time we were beginning to form up into teams we would be reorganised. I was to learn later in life that we tend to meet any new situation by reorganising: and a wonderful method it can be for creating the illusion of progress, while producing confusion, inefficiency and demoralisation."

-- Caius Petronius, Roman Consul, 66 A.D.