C / C++ / MFC

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Re: how to retrieve llist data from CListCtrl::OnNMRclick(NMHDR *pNMHDR, LRESULT *pResult) zecodela11-Aug-04 0:32 zecodela 11-Aug-04 0:32  oh! i solved the problem. thank you very much! actually, how can u get this? i can't get any hints from MSDN library. public data members elephantstar10-Aug-04 20:34 elephantstar 10-Aug-04 20:34  Hi there, I know that it's bad coding practice to have public data members but what if you have a private struct containing about 10 fields. If I create a public struct containing the exact same fields and set each field to something, can I pass that public struct as a parameter to the mutator method to set the private data members to? Does this fall under poor coding practices category or is it an exception to the rule? Thanks! Is User Active ? Amarelia10-Aug-04 19:47 Amarelia 10-Aug-04 19:47  Hi I want to know if the entered user is active or not ? I am developing this application on Windows2000 Professional. Using Win32 Console Based Application. Is there any function which on providing UserName, Password and Domain tells us that given User is Active or not ? Plz...Can't u do this for me ? Thanking You Anonymous Re: Is User Active ? Antony M Kancidrowski11-Aug-04 0:07 Antony M Kancidrowski 11-Aug-04 0:07  Do you mean is the user account enabled? Ant. I'm hard, yet soft. I'm coloured, yet clear. I'm fruity and sweet. I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain) Re: Is User Active ? Antony M Kancidrowski12-Aug-04 7:48 Antony M Kancidrowski 12-Aug-04 7:48  Take a look at NetUserGetInfo() using level 1. The USER_INFO_1 structure has a field called usri1_flags. Then do something like : if ((usri1_flags & UF_ACCOUNTDISABLE) == UF_ACCOUNTDISABLE) {   // Account is disabled } : Ant. I'm hard, yet soft. I'm coloured, yet clear. I'm fruity and sweet. I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain) please show me some example of CBrush::CreateBrushIndirect() learnvc10-Aug-04 19:47 learnvc 10-Aug-04 19:47  While LOGBRUSH's lbStyle is BS_DIBPATTERN,how to construction a pattern brush? I read MSDN but can't understand,what's "a packed DIB",How to "fills the memory with the packed DIB"?By the way,what's difference between BS_DIBPATTERN,BS_DIBPATTERNPT and BS_PATTERN? Who can show me some example of CBrush::CreateBrushIndirect() while lbStyle is BS_DIBPATTERN? vectors and assert Tyrus18210-Aug-04 19:41 Tyrus182 10-Aug-04 19:41  hi i have a function that is being passed a reference to a vector the function crashes on an assert. in an area before the vector is even accessed however if i comment the line where the vector is accessed the function executes no problems the thing is tho when its not commented it crashes way before the vector is even called i have stepped through the function an its giving me the assert area basicly when first thing in the function is called no where even near the vector im actualy using the same vector before the function is even called and doing similar things to it in the function before so i know that the vector is valid. and if i rearrange the functions it still crashes in the same function at the same place id paste the code but its fairly large and i doubt it would be much help can someone please give me some advice Re: vectors and assert V.10-Aug-04 20:43 V. 10-Aug-04 20:43  have you followed the call stack? Often you can find out there were it goes wrong. "If I don't see you in this world, I'll see you in the next one... and don't be late." ~ Jimi Hendrix Re: vectors and assert Dudi Avramov10-Aug-04 22:53 Dudi Avramov 10-Aug-04 22:53  Is this function exported one from a dll?If it is then try to change the runtime library in the project settings (and look for "STL access violation DLL" keywords in MSDN). Re: vectors and assert Mike Beckerleg10-Aug-04 22:59 Mike Beckerleg 10-Aug-04 22:59  Where is the assert? Is it in your code or in the STL code for vector? What is the assert checking? Excel Rassul Yunussov10-Aug-04 19:27 Rassul Yunussov 10-Aug-04 19:27  Hello Everyone, i got one question about how to get data from excel files. I know the one way - to query to it using ADO. But if the table doesn't have a name - i can't get data from it.I just want to access to excel tabular data as to array. Something like this: CString str = a[3][2]; Is there avaluable sources in the Internet? Any help would be appreashiated Re: Excel Aamir Butt10-Aug-04 20:35 Aamir Butt 10-Aug-04 20:35  Check this link: http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com:80/support/kb/articles/q178/7/81.asp&NoWebContent=1 Imagine that you are creating a fabric of human destiny with the object of making men happy in the end, giving them peace and rest at last, but that it was essential and inevitable to torture to death only one tiny creature..and to found that edifice on its unavenged tears, would you consent to be the architect on those conditions? Tell me, and tell me the truth! -Fyodor Dostoevsky, The Brothers Karamazov Network applcation in C++ A Khan10-Aug-04 19:16 A Khan 10-Aug-04 19:16  Hi there, I have to develope Network monitor in C++, for which I'll be using Winpcap libraries. This Network monitor will capture packets, display them, find number of packets transmitted by system per second etc. Now question is how I'll scan network using 'IP Address' because I think Winpcap is useful only if you knew MAC address. While I have to develop such software which on getting IP Address, analyze all network data that is transmitted by that computer. I'll highly appreciate if anyone comes up with any good suggestion. Thanks. A Khan Re: Network applcation in C++ 4apai10-Aug-04 22:35 4apai 10-Aug-04 22:35  try WNet functions Re: Network applcation in C++ A Khan11-Aug-04 1:35 A Khan 11-Aug-04 1:35  Thanks for reply. But please elaborate how do you think Wnet functions will help. I have gone through MSDN, other resources and my understanding is; We CANNOT retrieve MAC address if we have IP address of any machine in network.... if this conclusion is wrong, then please do identify how can I do the same. Thanks again. Re: Network applcation in C++ 4apai11-Aug-04 3:27 4apai 11-Aug-04 3:27  i just misunderstand u. i think u need to enumarate network resources: IP, etc. hm. how to get MAC from ip. what about network utilities, smth like nbtstat... Re: Network applcation in C++ Antony M Kancidrowski10-Aug-04 23:52 Antony M Kancidrowski 10-Aug-04 23:52  The problem you will have here is seeing the network traffic from the other computer. If the machines are switched to the desktop you will not see the traffic from the other machine unless it is intended for you. The only sure fire way to see the traffic is to run the capture on the machine in question. I believe that WinPcap does have a remote agent capability, or at least they are planning on adding this capability. Ant. I'm hard, yet soft. I'm coloured, yet clear. I'm fruity and sweet. I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain) Re: Network applcation in C++ A Khan11-Aug-04 1:43 A Khan 11-Aug-04 1:43  Thanks for reply, but I am still stucked since WinPCAP just cant do this all . I have to show this thing to my boss soon and I just cant figure it out, how I will be able to do this. Do you have any more suggestions, I will be highly appreciative. Re: Network applcation in C++ Antony M Kancidrowski11-Aug-04 2:50 Antony M Kancidrowski 11-Aug-04 2:50  WinPcap works by binding to a NIC in promiscuous mode. This allows the driver to see all packets that the NIC sees i.e. all packets that your computer sees. In order to see all packets that another computer sees you need to run WinPcap on that machine (at least in a remote agent capacity). It isn't sufficient just to expect your machine to see the packets from the other machine. (See previous reply with regards to switched networks). If it is proof of concept that you need to show your boss it can be done for the local NIC. The principles are the same for local and remote. Writing network monitoring applications takes time and understanding of networks. Generally they are not something that can be written in a couple of days (though drivers like WinPcap help speed up development vastly). You may want to look at the RFC's for IP (RFC 791)[^], TCP (RFC 793)[^] and UDP (RFC 768)[^]. This will give you some understanding of the structure of IP packets. Ant. I'm hard, yet soft. I'm coloured, yet clear. I'm fruity and sweet. I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain) Re: Network applcation in C++ A Khan11-Aug-04 19:15 A Khan 11-Aug-04 19:15  Thanks Antony for your soon reply. I have understanding of these RFCs and protocol headers but I just cant find way to get packets being recieved by other computer, of which I only knew MAC address. Okay Winpcap is something that is making it impossible for my appplication to do the same... So do you have any idea of some other library that can give me the functionlity I am looking for. Thanks Again Re: Network applcation in C++ A Khan11-Aug-04 19:29 A Khan 11-Aug-04 19:29  Sorry.... there is correction in mail in my previous mail... Thanks Antony for your soon reply. I have understanding of these RFCs and protocol headers but I just cant find way to get packets being recieved by other computer, of which I only knew IP address, NOT MAC address. Okay Winpcap is something that is making it impossible for my appplication to do the same... So do you have any idea of some other library that can give me the functionlity I am looking for. Re: Network applcation in C++ Antony M Kancidrowski12-Aug-04 7:53 Antony M Kancidrowski 12-Aug-04 7:53  A Khan wrote: So do you have any idea of some other library that can give me the functionlity I am looking for. Sorry, on this occasion I can not help. All network monitoring software packages that I am aware of work with a remote client agent on the machines in which they want to monitor. This way they get around switch blindness. Good look in finding a solution that suits you. Ant. I'm hard, yet soft. I'm coloured, yet clear. I'm fruity and sweet. I'm jelly, what am I? Muse on it further, I shall return! - David Williams (Little Britain) how do we change the Background Color Of the Label pubududilena10-Aug-04 18:31 pubududilena 10-Aug-04 18:31  hi, I am doing a MFC Project. I added several Labels for my Project. Now I want to change the Background Color Of the Label.How I do that? if any one know the anaswer, pl reply me... thanks.... Re: how do we change the Background Color Of the Label Aamir Butt10-Aug-04 20:43 Aamir Butt 10-Aug-04 20:43  You will have to override the CTL_COLOR handler for doing this. I m just giving a small example here. HBRUSH CAdvSearchDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor) { HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor); switch (nCtlColor) { case CTLCOLOR_STATIC: switch (pWnd->GetDlgCtrlID()) { case IDC_STATIC: pDC->SetBkColor(m_whiteColor); pDC->SetTextColor(m_blackColor); hbr = (HBRUSH) m_whiteBrush; break; ........ Check this link as well http://www.codeproject.com/dialog/colorfont.asp Imagine that you are creating a fabric of human destiny with the object of making men happy in the end, giving them peace and rest at last, but that it was essential and inevitable to torture to death only one tiny creature..and to found that edifice on its unavenged tears, would you consent to be the architect on those conditions? Tell me, and tell me the truth! -Fyodor Dostoevsky, The Brothers Karamazov Switching Splitter Views Help V Farkas10-Aug-04 18:22 V Farkas 10-Aug-04 18:22  I'm trying to switch between multiple views within my application of which 2 are splitter views. Everything compiles fine and when I execute the application, the code I have for switching views seems to work just fine until I try clicking on any of the panes within either of the splitter views. Once I click anywhere within a pane of the splitter view and then switch to another view and then back to the splitter view I had just clicked in, the pane within the splitter view goes blank upon returning to that particular view. Furthermore, if at this point I try to minimize or maximize my application, it will crash. Any suggestions on what to investigate or links to any articles on how to deal with switching between views that contain splitter windows would be greatly appreciated. Thanks in advance for any help!

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