C / C++ / MFC Discussion Boards

Re: Debugging Dll

Shenthil13-Jan-04 1:49

Shenthil

13-Jan-04 1:49

Thanks Mike.

Re: Debugging Dll

Shenthil13-Jan-04 1:45

Shenthil

13-Jan-04 1:45

Thanks. I am working on it. Also, do u know how to turn off disassemble while debugging.

Upgrading 'ATLBASE.h'

Anonymous12-Jan-04 22:28

Anonymous

12-Jan-04 22:28

Hi
I am trying to use the ATL class 'CRegKey'. I want to use the member function
'EnumKey()' which is described at the website.
If i look into the header file myself, that member function and some others aren't included.

Am i working with an old version of the ATLBASE.H? Can i upgrade this file and get all features of CRegKey?

I have Windows2000, Visual Studio 6.

Any ideas?

Greetings
Jens

Re: Upgrading 'ATLBASE.h'

Michael P Butler12-Jan-04 22:59

Michael P Butler

12-Jan-04 22:59

Anonymous wrote:
Am i working with an old version of the ATLBASE.H? Can i upgrade this file and get all features of CRegKey?

I have Windows2000, Visual Studio 6.

It looks like the function is only available with the ATL that comes with VS.NET and VS 2003. Even the latest platform SDK doesn't have it.

Michael

But you know when the truth is told,
That you can get what you want or you can just get old,
Your're going to kick off before you even get halfway through.
When will you realise... Vienna waits for you? - "The Stranger," Billy Joel

How to display an image loaded from a file on a dialog ?

Qadddd12-Jan-04 22:20

Qadddd

12-Jan-04 22:20

Hello,

what I would like to do is to display a logo (jpg or bmp) in a static control on a dialog.
This logo will always have the same size and will be stored in a file logo.jpg or logo.bmp located on user station, it will be loaded in the dialog at initialization time (no bitmap stored in the ressources).
This will allow me to be more flexible and to customize the dialog for each user station.
I will just give each user a different file logo.jpg or logo.bmp.

Thanks in advance for any information

Regards
DD

Re: How to display an image loaded from a file on a dialog ?

algol13-Jan-04 21:34

algol

13-Jan-04 21:34

CStatic::SetBitmap() (or send an STM_SETIMAGE message) and LoadImage with LR_LOADFROMFILE parameter (for BMPs). JPGs you can load with OleLoadPicturePath() and obtain hBmp through IPicture::get_Handle. You can also use IPicture::Render() to draw loaded image.

SetTopIndex functionality in Combolist (Droplist)

bluebar12-Jan-04 22:06

bluebar

12-Jan-04 22:06

In MFC I have a populated combobox. Now I want the second item to be selected be the first item to be visible. SetTopIndex() is the functionality I require but it only seems to work for ComboBox with Type: Simple???

When the droplist is shown I just want to nudge the scrollbar up one. Can I get a handle to the vertical scrollbar in the drop list, if so how?

Sort is turned off, VC6 sp5.

Any help would be greatly appreciated. ps. take it easy im a newbie.

system tray popup menu problem

skpanda12-Jan-04 21:46

skpanda

12-Jan-04 21:46

hello,

here is a problem..
in my project i m showing the program icon in the system tray when it is installed( like yahoo messanger icon when installed).now i want to take the mouse on the icon and right button clicked.it should show the popup menu containing one item string when i passed 0(zero) to a variable which is saved in a system file(created for my project) .now i changed the file by giving some other value
like 1(one) to the variable ,save that file,then i took my mouse on the icon and right click,this time it should show 2 items in the menu for examp. 1.messanger, 2. logon etc. in the popup menu.

how can i achieve this dynamically without restarting the computer .

point : my file variable value is read by registry and setting the new value correctly, which i tested by putting messageBox..so i m reading from the registry either 0 or 1 correctly. the problem is how to create dynamically these 2 menus one having one item & the other having 2 items according to the values passed either 0 or 1 respectively???

any idea anybody???

skpanda

Re: system tray popup menu problem

Roger Allen13-Jan-04 1:03

Roger Allen

13-Jan-04 1:03

A quick example put together from memory on dynamic menu creation

HMENU hMenu = ::CreatePopupMenu();

switch (itemCount)
{
case 5:AppendMenu(hMenu, MF_STRING, 5, "Item 5");
case 4:AppendMenu(hMenu, MF_STRING, 4, "Item 4");
case 3:AppendMenu(hMenu, MF_STRING, 2, "Item 3");
case 2:AppendMenu(hMenu, MF_STRING, 2, "Item 2");
case 1:AppendMenu(hMenu, MF_STRING, 1, "Item 1");
case 0:
break;
}

int selection = TrackPopupMenuEx(hMenu, x, y, TPM_RETURNCMD, ...);
DestroyMenu(hMenu);

Roger Allen - Sonork 100.10016
Roger Wright: Remember to buckle up, please, and encourage your friends to do the same. It's not just about saving your life, but saving the quality of life for those you may leave behind...

Gets file through proxy with autorization

Eugene Pustovoyt12-Jan-04 21:22

Eugene Pustovoyt

12-Jan-04 21:22

I need a class or a code sample with a commets for receiving a file through the proxy with autorization.

Please, help me Sigh | :sigh:

Best regards,
Eugene Pustovoyt

Re: Gets file through proxy with autorization

murali_utr13-Jan-04 0:11

murali_utr

13-Jan-04 0:11

through http or ftp?

Re: Gets file through proxy with autorization

Eugene Pustovoyt13-Jan-04 1:11

Eugene Pustovoyt

13-Jan-04 1:11

HTTP

Best regards,
Eugene Pustovoyt

Re: Gets file through proxy with autorization

murali_utr13-Jan-04 1:41

murali_utr

13-Jan-04 1:41

Hi,
use this code.

#include <afxinet.h>
//assumes server, port and URL names have been initialized
CInternetSession session("My Session");
CHttpConnection* pServer = NULL;
CHttpFile* pFile = NULL;
try
{
CString strServerName;
INTERNET_PORT nPort;

INTERNET_PROXY_INFO proxyinfo;
proxyinfo.dwAccessType = INTERNET_OPEN_TYPE_PROXY;
proxyinfo.lpszProxy = CStrProxy;
proxyinfo.lpszProxyBypass = NULL;
session.SetOption(INTERNET_OPTION_PROXY, (LPVOID)&proxyinfo, sizeof(INTERNET_PROXY_INFO));

pServer = session.GetHttpConnection(strServerName, nPort);
pFile = pServer->OpenRequest(CHttpConnection::HTTP_VERB_GET, strObject);
pFile->AddRequestHeaders(szHeaders);
pFile->SendRequest();
pFile->QueryInfoStatusCode(dwRet);

if (dwRet == HTTP_STATUS_OK)
{
UINT nRead = pFile->Read(szBuff, 1023);
while (nRead > 0)
{
//read file...
}
}
delete pFile;
delete pServer;
}
catch (CInternetException* pEx)
{
//catch errors from WinInet
}
session.Close();

Have A Nice Day
Murali.M

Re: Gets file through proxy with autorization

Eugene Pustovoyt13-Jan-04 2:27

Eugene Pustovoyt

13-Jan-04 2:27

I don't understand what a szHeaders string must contains!?

Best regards,
Eugene Pustovoyt

Re: Gets file through proxy with autorization

murali_utr13-Jan-04 17:41

murali_utr

13-Jan-04 17:41

const TCHAR szHeaders[] =
_T("Accept: text/*\r\nMozilla/3.0 (compatible; My Browser/1.0)\r\n");

Re: Gets file through proxy with autorization

Eugene Pustovoyt13-Jan-04 18:10

Eugene Pustovoyt

13-Jan-04 18:10

But in this code I don't see an authorizing on the proxy. I need it.

Best regards,
Eugene Pustovoyt

Download Management

abhinarulkar12-Jan-04 21:22

abhinarulkar

12-Jan-04 21:22

Hi,
Could anyone provide some pointers on download management concepts. The Download Management would essentially mean download acceleration, download resumption if connection fails etc. I would like to know how all this is done and any sample code if possible.

Thanks and Regards,
Abhishek.

Learning is a never ending process of Life.

Re: Download Management

Mike Dimmick13-Jan-04 2:13

Mike Dimmick

13-Jan-04 2:13

Basically, it relies on the range capability of HTTP and the restart capability of FTP.

For download acceleration (where this does not mean altering the configuration of the TCP/IP stack, which has happened to me a few times with this sort of software), the client requests different ranges on different connections. This gets around the bandwidth throttles that some sites apply on a per-connection basis. It can also sometimes help to have an additional connection if the first one stalls.

Some accelerators communicate with their authors' website, to discover mirrors of the content (Go!Zilla used to do this). The download manager then connects to multiple mirror sites, dividing the content between them.

The specification for HTTP/1.1 says, 'A single-user client SHOULD NOT maintain more than 2 connections with any server or proxy.' Download accelerators often break this rule.

Resuming a download is much the same - for HTTP, you set the Range header to start at the point that failed, while for FTP you use the REST command to indicate where you want to restart. However, the server may not understand the command - you may need to fall back to retrieving the whole.

I believe the WinInet DLL does allow setting restart points, although I think you have to add to the headers (HTTP) or send the command explicitly (FTP). WinInet enforces the two connection limit mentioned above.

Re: Download Management

abhinarulkar14-Jan-04 3:40

abhinarulkar

14-Jan-04 3:40

Thanks a lot Mike for your help.
Could you suggest me some online resource where I can do a detailed study on this subject and where I can find some sample code on how exactly this can be done.
I would be greatful if you could provide me with this info.

Thanks
Abhishek.

Learning is a never ending process of Life.

Importing JPEG in MFC

hurr1can312-Jan-04 21:04

hurr1can3

12-Jan-04 21:04

Hi there. Can anyone advise me on how to open a image file like JPEG in a MFC application? I have written a MFC application and need to add in the open image file option. Can anyone tell me how to do it? Thank you for any advise.

Re: Importing JPEG in MFC

l a u r e n12-Jan-04 21:17

l a u r e n

12-Jan-04 21:17

use cximage here on cp
Wink | ;)

"there is no spoon"
biz stuff about me

Re: Importing JPEG in MFC

Selvam R12-Jan-04 22:02

Selvam R

12-Jan-04 22:02

Hello,

A sample way to load JPEG,

http://www.codetools.com/bitmap/imgviewer.asp

With Regards,
R.Selvam

Re: Importing JPEG in MFC

Prakash Nadar13-Jan-04 0:18

Prakash Nadar

13-Jan-04 0:18

You can also go for GDI+ apis to do the same.

I Touched Osama Bin Ladens Bushy Beard

Is there such a API function for thread?

zhaopzhi12-Jan-04 20:33

zhaopzhi

12-Jan-04 20:33

It is well-known that the PostThreadMessage function ,only for thread,places (posts) a message in the message queue of the specified thread and then returns without waiting for the thread to process the message.

Q: Whether there is a function which ,similar to SendMessage in function,but for thread not window,sends the specified message to a thread and does not return until the thread has processed the message.

Rap off for you,for me,for our human.

Odd CEdit

AntonGogolev12-Jan-04 20:30

AntonGogolev

12-Jan-04 20:30

Hello, guys.
Check this out:

<br />
void CCtrlsDlg::OnDblclkList(NMHDR* pNMHDR, LRESULT* pResult) <br />
{<br />
	LPNMITEMACTIVATE pIA = (LPNMITEMACTIVATE)pNMHDR;<br />
	*pResult = 0;<br />
<br />
	if((-1 == (m_nItem = pIA->iItem)) || (0 == (m_nSubitem = pIA->iSubItem))) <br />
		return;<br />
<br />
	CRect rc;<br />
	m_ctrlList.GetSubItemRect(pIA->iItem, pIA->iSubItem, LVIR_BOUNDS, rc);<br />
<br />
	if(!m_pEdit)<br />
		m_pEdit = new CEdit;<br />
<br />
	CString strText = m_ctrlList.GetItemText(m_nItem, m_nSubitem);<br />
<br />
	m_pEdit->Create(WS_CHILD | WS_VISIBLE | WS_BORDER, rc, &m_ctrlList, 12);<br />
	m_pEdit->ModifyStyleEx(0, WS_EX_CLIENTEDGE, 0);<br />
	m_pEdit->SetWindowText(strText);<br />
	m_pEdit->SetSel(0, -1);<br />
	m_pEdit->SetFocus();<br />
}<br />

This whole thing displays an edit box for CListCtrl's subitems, but as CEdit control is created it has some odd look - it looks like edit control from Windows 3.1 rather anything else. Where's the problem?

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.