Debugging a Win32 dll loaded by LoadLibrary - C / C++ / MFC Discussion Boards

Re: Passing the member function pointer to the AfxBeginThread and its problems.

David Crow23-Aug-08 4:18

23-Aug-08 4:18

There's nothing new about this. It's been discussed on this forum dozens of times, and there are even articles about it.

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: Passing the member function pointer to the AfxBeginThread and its problems.

WindowsPistha24-Aug-08 19:11

WindowsPistha

24-Aug-08 19:11

Yes you are right , I have red the below article before i posting.

It did not talk about , why compiler gives error.

so i thought of sharing here,I want to give something back to codeproject which gives lot of information to me.

http://www.codeproject.com/KB/threads/memberthread.aspx[^]

Regards,
WindowsPistha

Re: Passing the member function pointer to the AfxBeginThread and its problems.

David Crow25-Aug-08 4:14

David Crow

25-Aug-08 4:14

I searched and found three pages worth. Some of them include:

http://www.codeproject.com/script/Forums/View.aspx?fid=1647&msg=1510191[^]

http://www.codeproject.com/script/Forums/View.aspx?fid=1647&msg=2166781[^]

http://www.codeproject.com/script/Forums/View.aspx?fid=1647&msg=2071901[^]

http://www.codeproject.com/script/Forums/View.aspx?fid=1647&msg=1363953[^]

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: Passing the member function pointer to the AfxBeginThread and its problems.

WindowsPistha26-Aug-08 4:22

WindowsPistha

26-Aug-08 4:22

Thank you Mr. David

here after i will double check before i posting.

Regards,
WindowsPistha

Difference between 2 threads & 64 threads in VC++

lakshmiyv1723-Aug-08 2:14

lakshmiyv17

23-Aug-08 2:14

Can anyone please explain .....

Usually we use Semaphore or Mutex syncronization techniques to avoid deadlock between 2 or more threads.

Now my query is : Is there any other technique for 64 threads to prevent dead lock?

Thanks in Advance

Re: Difference between 2 threads & 64 threads in VC++ [modified]

SandipG 23-Aug-08 4:55

SandipG

23-Aug-08 4:55

Number of threads is irrelevant..
You will use same synchronization concepts to prevent deadlocks.

lakshmiyv17 wrote:
Is there any other technique for 64 threads to prevent dead lock?

Why so much threads. There will be huge performance hit!!!

Regards,
Sandip.

modified on Saturday, August 23, 2008 12:49 PM

Re: Difference between 2 threads & 64 threads in VC++

bob1697223-Aug-08 8:22

bob16972

23-Aug-08 8:22

If you are using that many threads you may want to reconsider your design. This is one of the many reasons you don't see too many Netware servers around anymore. It was common to see millions of threads during primitive indexing tasks while you waited (sometimes hours) for the nightly index clean ups to finish up on Netware Servers. It was a terrible philosophy to create a thread for every little chore or socket.

If you do a search for IO Completion Ports or IOCP here on code project, you'll find some good information on why you want to limit the thread count to be more in line with the number of processing units the machine has to offer.

I hope that helps.

Debugging a Win32 dll loaded by LoadLibrary

Klempie23-Aug-08 1:35

Klempie

23-Aug-08 1:35

I am using the following to load a dll in a Visual C++ 2003 project.

LoadLibrary(_T"mydll.dll"));

mydll.dll is generated by a project within the solution although I have to copy it into the exe's location (or change the filepath string) to get it to load. What I want to know is:

1) Is there some kind of mechanism in Visual Studio which can reference the dll via the dll project instead of the filesystem and
2) consequently, what do I need to do to debug code that is executing from that dll project?

I hope I have worded this well enough to get what I'm trying to do across... Poke tongue | ;-P

Re: Debugging a Win32 dll loaded by LoadLibrary [modified]

SandipG 23-Aug-08 4:52

SandipG

23-Aug-08 4:52

Klempie wrote:
1) Is there some kind of mechanism in Visual Studio which can reference the dll via the dll project instead of the filesystem and

I dont know what do you mean by this..
But

Klempie wrote:
2) consequently, what do I need to do to debug code that is executing from that dll project?

This can be done.

Steps
1. Put break points in the code that you want to debug.
2. Press F5(debug) on your dll project.
3. It will ask you the executable path
4. Browse and specify the path of the exe which uses this dll.
5. Now perform the action on exe that invokes dll functionality.

I hope that makes sense.

Regards,
Sandip.

Re: Debugging a Win32 dll loaded by LoadLibrary

Klempie24-Aug-08 6:07

Klempie

24-Aug-08 6:07

Thanks guys. This helped with problem number 2.

Re: Debugging a Win32 dll loaded by LoadLibrary

Hamid_RT23-Aug-08 6:50

Hamid_RT

23-Aug-08 6:50

If you want to debug your dll file you can use of breakpoints(and F5) when you will be calling dlls functions of your project use of F5.

How to get a url if IP address is known

Dhiraj kumar Saini23-Aug-08 1:04

Dhiraj kumar Saini

23-Aug-08 1:04

Hi,

I have developed a window based application which is able to fetch the IPAddress but i want the url name of the IPAddress fetched.Can any one tell me how to do it.
The Server is sending the IPAddress.

Thanks In Advance.

Dhiraj Kumar Saini

Re: How to get a url if IP address is known

Perspx23-Aug-08 1:31

Perspx

23-Aug-08 1:31

Use the Windows socket function getnameinfo().

Regards,
--Perspx

"The Blue Screen of Death, also known as The Blue Screen of Doom, the "Blue Screen of Fun", "Phatul Exception: The WRECKening" and "Windows Vista", is a multi award-winning game first developed in 1995 by Microsoft" - Uncyclopedia

Introduction to Object-Oriented JavaScript

Re: How to get a url if IP address is known

enhzflep23-Aug-08 1:33

enhzflep

23-Aug-08 1:33

First of all, check this site as I think it has something useful for you.
Network Programming Howto

Next, review the Winsock Functions page at msdn.
MSDN Winsock Functions[^]

[Message Deleted]

Dhiraj kumar Saini23-Aug-08 0:01

Dhiraj kumar Saini

23-Aug-08 0:01

[Message Deleted]

Re: dictionary problem

enhzflep23-Aug-08 1:36

enhzflep

23-Aug-08 1:36

I thought this was the Visual C++ / MFC forum.... Confused | :confused:

Aren't jokes better placed in the lounge?

Remove unexpexted out put

vcprog22-Aug-08 23:58

vcprog

22-Aug-08 23:58

Hi all

Once again i am asking same question how can i remove .What happen in this code when usb drive is blank then this type of out put come

ÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌ

.
plz help me
BOOL CUSBDlg::FileList()
{

CString acb="";

//Get Logical Drives

DWORD dwDrives=GetLogicalDrives();

if(0==dwDrives)

{

return FALSE;

}

DWORD dwCount=0;

char chDriveLabel='C';

char szRootpath[5]={0,0,0,0,0};

while(dwDrives !=0)

{

if ((dwDrives & 1) != 0)

{

sprintf(szRootpath,"%c:\\",chDriveLabel);

//removable drive

if(DRIVE_REMOVABLE==GetDriveType(szRootpath))

{

WIN32_FIND_DATA FindFileData;

HANDLE hFind;

//Removable dirve lable

// AfxMessageBox(szRootpath);

m_ListCountries.AddString(szRootpath);

HTREEITEM hRoot1 = m_tree.InsertItem(szRootpath, 0, 0);

//* represent search all files and directories

szRootpath[3]='*';

hFind=FindFirstFile(szRootpath, &FindFileData);

if (INVALID_HANDLE_VALUE == hFind)

{

// return TRUE;

}

// List all the files in the directory .

do

{

//ignore the sub directories

if( _tcscmp( FindFileData.cFileName, _T(".") ) && _tcscmp( FindFileData.cFileName, _T("..") ) )
{

m_ListCountries.AddString(FindFileData.cFileName);

}

}while (FindNextFile(hFind, &FindFileData) != 0);
CFileFind finder;

FindClose(hFind);

}

}

dwDrives = dwDrives >> 1;//next drive

chDriveLabel++;

}

return true;

}

Re: Remove unexpexted out put

Ștefan-Mihai MOGA23-Aug-08 0:13

Ștefan-Mihai MOGA

23-Aug-08 0:13

Hello,

please try using memset before calling FindFirstFile and FindNextFile for FindFileData structure, something like this:

memset( FindFileData, 0, sizeof( FindFileData ) );
hFind=FindFirstFile(szRootpath, &FindFileData);

if (INVALID_HANDLE_VALUE == hFind)
{
    // return TRUE;
}

// List all the files in the directory .
do
{
    //ignore the sub directories
    if( _tcscmp( FindFileData.cFileName, _T(".") ) && _tcscmp( FindFileData.cFileName, _T("..") ) )
    {
        m_ListCountries.AddString(FindFileData.cFileName);
    }

    memset( FindFileData, 0, sizeof( FindFileData ) );
}while (FindNextFile(hFind, &FindFileData) != 0);
CFileFind finder;

FindClose(hFind);

Best regards,
Mihai Moga

Re: Remove unexpexted out put

vcprog23-Aug-08 0:32

vcprog

23-Aug-08 0:32

Thx'x it is working...just i want to say greate work for me becouse i havn't found solution of this problem..

Can i ask you some different question related to USB Device..

Re: Remove unexpexted out put

Ștefan-Mihai MOGA23-Aug-08 0:54

Ștefan-Mihai MOGA

23-Aug-08 0:54

Sure, you can ask me, but I do not known too much about USB. You may consider starting a new thread for this ...

Re: Remove unexpexted out put

vcprog23-Aug-08 1:07

vcprog

23-Aug-08 1:07

ok no problem i ask here..

[code]How can i show message when any one copy the file or folde from USB Device or Paste the file or folder in USB Device[/code]. Plz help me..

Re: Remove unexpexted out put

David Crow23-Aug-08 4:03

David Crow

23-Aug-08 4:03

Mihai Moga wrote:
please try using memset before calling FindFirstFile and FindNextFile for FindFileData structure...

Setting that structure to 0 is not necessary.

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: Remove unexpexted out put

David Crow23-Aug-08 4:04

David Crow

23-Aug-08 4:04

vcprog wrote:
Once again i am asking same question...

And you've been given the answer three times already. Why do you refuse to comply?

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

Re: Remove unexpexted out put

NewVC++24-Aug-08 18:42

NewVC++

24-Aug-08 18:42

ok DavidCrow

Can you give me some pice of code..

Plz help me

Thx,s in advance

Re: Remove unexpexted out put

David Crow25-Aug-08 4:20

David Crow

25-Aug-08 4:20

NewVC++ wrote:
Plz help me

Do you see anything wrong with this?

if (INVALID_HANDLE_VALUE == hFind) 
{
    // return TRUE;
}

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

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