Re: how we caan add files to listbox - C / C++ / MFC Discussion Boards

Re: how we caan add files to listbox

Sarath C26-Jun-06 1:31

Sarath C

26-Jun-06 1:31

here is the sample snippet

CFileFind finder;
 BOOL bWorking = finder.FindFile("*.*"); // give full path, else it will search in the current directory
 while (bWorking)
 {
    if (finder.IsDots())
       continue;

    // if it's not a directory, add it
    if (!finder.IsDirectory())
    {
        bWorking = finder.FindNextFile();
        m_ListBox.AddString((LPCTSTR) finder.GetFileName());
    }
 }

Sa^Rath.

"Do Next Thing..."
My Blog | Understanding State Pattern in C++

Re: how we caan add files to listbox

Sarath C26-Jun-06 1:33

Sarath C

26-Jun-06 1:33

Another way to do the same thing

// The pointer to my list box.
extern CListBox* pmyListBox;

// Add all the files and directories in the windows directory.
TCHAR lpszWinPath[MAX_PATH], lpszOldPath[MAX_PATH];
::GetWindowsDirectory(lpszWinPath, MAX_PATH);

::GetCurrentDirectory(MAX_PATH, lpszOldPath);
::SetCurrentDirectory(lpszWinPath);

pmyListBox->ResetContent();
pmyListBox->Dir(DDL_READWRITE|DDL_DIRECTORY, _T("*.*"));

::SetCurrentDirectory(lpszOldPath);

Sa^Rath.

"Do Next Thing..."
My Blog | Understanding State Pattern in C++

Re: how we caan add files to listbox

Sarath C26-Jun-06 1:34

Sarath C

26-Jun-06 1:34

Modify

SaRath C wrote:
::GetWindowsDirectory(lpszWinPath, MAX_PATH);

with your selected path

Sa^Rath.

"Do Next Thing..."
My Blog | Understanding State Pattern in C++

Re: how we caan add files to listbox

happy_ram26-Jun-06 1:46

happy_ram

26-Jun-06 1:46

first of all i add the files using follwing code

	POSITION currPos;


	char strFilter[] = { "Mp3 files (*.mp3)|*.mp3|All Files (*.*)|*.*||" };

	CFileDialog avi(TRUE, ".mp3",NULL,OFN_ALLOWMULTISELECT | OFN_HIDEREADONLY, strFilter);

    char drive[_MAX_DRIVE], middle[_MAX_PATH], filename[_MAX_FNAME], ext[_MAX_EXT];


     if(avi.DoModal() == IDOK)
	 { 

   currPos = avi.GetStartPosition();

     while(currPos != NULL)            
					
	 {
  m_SongName = avi.GetNextPathName(currPos);
_splitpath (m_SongName, drive, middle, filename, ext);
m_list7.AddString(m_SongName);

so tell atleast what modufication i should do to ad folder

Re: how we caan add files to listbox

Sarath C26-Jun-06 2:07

Sarath C

26-Jun-06 2:07

Use SHBrowseFolder for selecting folder.

it is easy to modify the snippet i have given.

Sa^Rath.

"Do Next Thing..."
My Blog | Understanding State Pattern in C++

Re: how we caan add files to listbox

happy_ram26-Jun-06 2:11

happy_ram

26-Jun-06 2:11

ok!
how we use SHBrowseFolder it,
i know iam disturbing u,
really sorry,
but my work demands me please,
beacuse it is urgent,
sree.

Re: how we caan add files to listbox

Naveen26-Jun-06 2:23

Naveen

26-Jun-06 2:23

sree_as wrote:
how we use SHBrowseFolder it,

CString csFolderSelected;
BROWSEINFO bi = {0};
bi.ulFlags = BIF_RETURNONLYFSDIRS ;
LPITEMIDLIST pIt;
if( (pIt = SHBrowseForFolder( &bi )))
{
TCHAR tcPath[ MAX_PATH ];
if( SHGetPathFromIDList( pIt, tcPath ))
{
csFolderSelected = tcPath;
AfxMessageBox( "the user selected the folder " + csFolderSelected );
}
}

nave

Re: how we caan add files to listbox

Sarath C26-Jun-06 2:27

Sarath C

26-Jun-06 2:27

After this,

TCHAR lpszOldPath[MAX_PATH];
::GetCurrentDirectory(MAX_PATH, lpszOldPath);
::SetCurrentDirectory(csFolderSelecter);

pmyListBox->ResetContent();
pmyListBox->Dir(DDL_READWRITE|DDL_DIRECTORY, _T("*.mp3"));

::SetCurrentDirectory(lpszOldPath);

This will work fine Smile | :)

Sa^Rath.

"Do Next Thing..."
My Blog | Understanding State Pattern in C++

Re: how we caan add files to listbox

vasusree26-Jun-06 3:03

vasusree

26-Jun-06 3:03

Thnak u sararth and naveen,
really it is working very nice,
thank u very much.
this is my friend login id because system has failed.
so iam sending message from my friend system.
thank u,
finally simple problem if i like to add items to listctrl instead of Listbox,
Dir function is not availble for that
what should i do

Re: how we caan add files to listbox

Sarath C26-Jun-06 3:49

Sarath C

26-Jun-06 3:49

Use the first method I specified.

Sa^Rath.

"Do Next Thing..."
My Blog | Understanding State Pattern in C++

Re: how we caan add files to listbox

Sarath C26-Jun-06 3:50

Sarath C

26-Jun-06 3:50

http://www.codeproject.com/script/comments/forums.asp?msg=1548776&forumid=1647#xx1548776xx[^]

Sa^Rath.

"Do Next Thing..."
My Blog | Understanding State Pattern in C++

function WM_ERASEBKGND

yogendra kaushik26-Jun-06 1:16

yogendra kaushik

26-Jun-06 1:16

plz tell me where i found the function WM_ERASEBKGND to change color
in clas wizard
OnEraseBkgnd(CDC *pDC)

Please mail me

Re: function WM_ERASEBKGND

Sarath C26-Jun-06 1:23

Sarath C

26-Jun-06 1:23

1. Go to Class Wizard and select required the message from the class (make sure that you have selected correct class) "Add Handler" there
2. Right click on the class and select "Add Message Handler"

Sa^Rath.

"Do Next Thing..."
My Blog | Understanding State Pattern in C++

Re: function WM_ERASEBKGND

yogendra kaushik26-Jun-06 1:31

yogendra kaushik

26-Jun-06 1:31

sir i am sorry what i dont understand
when i go to class wizard there is no function WM_ERASEBKGND
plz help me

Please mail me

Re: function WM_ERASEBKGND

Sarath C26-Jun-06 1:35

Sarath C

26-Jun-06 1:35

How you are created you app? using classwizard?

Sa^Rath.

"Do Next Thing..."
My Blog | Understanding State Pattern in C++

Re: function WM_ERASEBKGND

yogendra kaushik26-Jun-06 1:38

yogendra kaushik

26-Jun-06 1:38

i made a dialog based application
and now i want to change my dialog box color
i know that WMPAINT work for this what i want to use WM_ERASEBKGND
could it be possible

Please mail me

Re: function WM_ERASEBKGND

Sarath C26-Jun-06 2:45

Sarath C

26-Jun-06 2:45

yes

Sa^Rath.

"Do Next Thing..."
My Blog | Understanding State Pattern in C++

Re: function WM_ERASEBKGND

Hamid_RT26-Jun-06 1:43

Hamid_RT

26-Jun-06 1:43

one simple way insert this codes in your file(I think you need to learning VC)but anyway for solve your problem use this
in header file
afx_msg BOOL OnEraseBkgnd(CDC* pDC);

in cpp file insert

 <br />
BOOL your class name::OnEraseBkgnd(CDC* pDC) <br />
{<br />
// TODO: Add your message handler code here and/or call return CDialog::OnEraseBkgnd(pDC);<br />
}<br />

whitesky

Re: function WM_ERASEBKGND

ovidiucucu26-Jun-06 2:11

ovidiucucu

26-Jun-06 2:11

Depending on the class type (e.g. Dialog, MDI Child Frame, etc.), ClassWizard filters the messages.

To show all messages do the following:

select "Class Info" tab;
from "Message filter" combo box, choose "Window";
go back to "Message Maps" tab; now all available messages are displayed in the "Messages" list.

Ovidiu Cucu
Microsoft MVP - Visual C++

Re: function WM_ERASEBKGND

Viorel.26-Jun-06 1:46

Viorel.

26-Jun-06 1:46

You should open your dialog in dialog editor and then click on caption bar of your dialog. Then go to View --> Properties Window, activate the panel with Windows messages by clicking a toolbar button. Then select WM_ERASEBKGND event and add the handler.

The simplest handler can look like this:

BOOL CMyDialog::OnEraseBkgnd(CDC * pDC)
{
	pDC->FillSolidRect(0, 0, 32000, 32000, RGB(0, 0, 255)); // blue
	return TRUE;
}

client connection failure!

raserove26-Jun-06 1:16

raserove

26-Jun-06 1:16

Hi,
I'm looking for possible reason for the client connection failure with my server.

So for so good all clients where connected suddenly the client applications can't connect to the server appln. Only change happened is, there is a gradual increase in my users connecting & disconnecting from my server.

I use sockets for connections & when i debuged the client application with GetLastError() i receive WSAECONNREFUSED error when executing socket's 'Connect' method . I even tried telnet but receive 'couldnot open host' msg, but my server is still running & the previosuly connected clients are still receiving handshake.

Waited for few hours, still can't connect to server, do anyone know the possible reason why this is happening? this is killing me!
Thank you

Rove

Re: client connection failure!

Sarath C26-Jun-06 1:21

Sarath C

26-Jun-06 1:21

from your description, I could understand that, it is the maximum number of clients that can be connected to the server.

Disconnect one of the currently connected clients and connect the new client. it should work fine.

Sa^Rath.

"Do Next Thing..."
My Blog | Understanding State Pattern in C++

Re: client connection failure!

James R. Twine26-Jun-06 1:49

James R. Twine

26-Jun-06 1:49

   If this happens after a number of disconnects, you may be exhausting your socket handles. I would double-check your code to make sure that you are correctly freeing socket handles.

   I have had this happen in the past with a UDP-based server I wrote - a bug in my socket wrapper class prevented the underlying socket handle from being released when the wrapper class was returned to its cache. (Note that in my case, the CPU usage was pegged when this happened, so if you are seeing that, that may be the problem.)

   Peace!

-=- James

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Re: client connection failure!

raserove26-Jun-06 2:32

raserove

26-Jun-06 2:32

Hi James,
Your answer probably looks closer to my problem, thanks for your reply. Did you mean that i've to double check the socket handles in server appln? it is a tcp based server.

Rove

Re: client connection failure!

James R. Twine26-Jun-06 2:52

James R. Twine

26-Jun-06 2:52

Yes, in the server app. When a client disconnects, make sure that you are calling closesocket(...) on the socket handle you were communicating on (or that whatever wrappers you are using are doing that).

The normal flow of operations should be something like:

SomeSocket = socket(...)
bind( SomeSocket, ... )
listen( SomeSocket, SOMAXCONN )
while( ClientConn = accept( SomeSocket, ... ) != INVALID_SOCKET )
{
    // Process Client Connection
    closesocket( ClientConn )
}
closesocket( SomeSocket )

The above kinds-sorta-pesudo-code gives a simple idea.

Peace!

-=- James

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