C / C++ / MFC

FirstPrevNext

Re: Displaying a list of CD/DVD drives Michael Dunn5-Mar-04 13:53 Michael Dunn 5-Mar-04 13:53  GetLogicalDrives() will tell you which drive letters exist on the system. Call GetDriveType() on each one and look for a return of DRIVE_CDROM. --Mike-- Personal stuff:: Ericahist | Homepage Shareware stuff:: 1ClickPicGrabber | RightClick-Encrypt CP stuff:: CP SearchBar v2.0.2 | C++ Forum FAQ ---- Kosh reminded me of some of the prima-donna programmers I've worked with. Knew everything but when you asked them a question; never gave you a straight answer.   -- Michael P. Butler in the Lounge How do I establish a dial up connection glweid5-Mar-04 7:53 glweid 5-Mar-04 7:53  I have an application that currethly supports a socket connection but I want to add a Dialog to support setting up a Dial Up connection. What APIs can I use to do that ? Thanks Re: How do I establish a dial up connection David Crow5-Mar-04 8:36 David Crow 5-Mar-04 8:36  Check out RasCreatePhonebookEntry() and the other RAS functions. "The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998) Re: How do I establish a dial up connection Lee Fuller5-Mar-04 8:41 Lee Fuller 5-Mar-04 8:41  You could use the WinInet API by importing them into your project [DllImport("wininet.dll")]. Interfaces like InternetGetConnectedState and InternetAutodial would probably be helpful - check the WinInet docs for details. Cheers, Lee. Lee H Fuller lee@fullerdata.com Re: How do I establish a dial up connection Ivor S. Sargoytchev5-Mar-04 10:55 Ivor S. Sargoytchev 5-Mar-04 10:55  Dundas Software has a free dialup MFC class which can be downloaded from here. Ivor S. Sargoytchev Dundas Software QueryInterface failing after network reconnect in DCOM Nirav Thakkar5-Mar-04 7:23 Nirav Thakkar 5-Mar-04 7:23  Hi, I have a weird problem in DCOM. Everything works fine until the network goes down. If after a short period of network failure, when the network connection is restored, and I do CoCreateInstanceEx again, that works ok too, however, now I can't get a QueryInterface to succeed to get an interface pointer. It fails with some RPC error in the HRESULT. This behavior is intermittant. Pl. help. Thanks, nct_11 Convert MFC Doc / View App to a COM server John M. Drescher5-Mar-04 6:53 John M. Drescher 5-Mar-04 6:53  Is it possible/easy to convert MFC Doc / View App to a COM / DCOM server? What I want to do is to have an external application query my running MFC application for the status of several internal operations using COM. John Re: Convert MFC Doc / View App to a COM server Prakash Nadar5-Mar-04 7:01 Prakash Nadar 5-Mar-04 7:01  Not easy thing to do, plus the mfc application may not be employing the best techniques for COM/DCOM application to work efficiently Interviewer (me) : "Did you install Linux all my yourself?" Candidate : "Yes i installed Linux all my yourself." Re: Convert MFC Doc / View App to a COM server basementman5-Mar-04 7:24 basementman 5-Mar-04 7:24  It may be easier to expose the data from your existing app via a pipe or socket, and then write a COM component that knows how to query that pipe/socket.  onwards and upwards...  Re: Convert MFC Doc / View App to a COM server John M. Drescher5-Mar-04 7:52 John M. Drescher 5-Mar-04 7:52  I was thinking of that but it does not seem like a simple operation and it will require a lot of work to implement. John Re: Convert MFC Doc / View App to a COM server l a u r e n5-Mar-04 8:20 l a u r e n 5-Mar-04 8:20  why use dcom? just expose an interface and use a standard network protocol ? "there is no spoon" biz stuff   about me Re: Convert MFC Doc / View App to a COM server John M. Drescher5-Mar-04 8:30 John M. Drescher 5-Mar-04 8:30  Because to get the result I need to execute code on the application address space and return objects containing the result. This sounds very much what com does... John Re: Convert MFC Doc / View App to a COM server l a u r e n5-Mar-04 8:33 l a u r e n 5-Mar-04 8:33  can u add code to the exiting app? make it pipe data out in some form or another? "there is no spoon" biz stuff   about me Re: Convert MFC Doc / View App to a COM server John M. Drescher5-Mar-04 8:47 John M. Drescher 5-Mar-04 8:47  Yes I can however I believed their was some trick that I could use to make my app a com server than add com objects that would return the info. If this is impossible or too difficult it really is not worth doing because it is not all that important to have this feature. The purpose of this information was to aid in debugging a complex multithreading application. I believe if I went the sockets route I am going to have to add a thousand lines of code to accomplish this and that was not what I was looking for. John Re: Convert MFC Doc / View App to a COM server l a u r e n5-Mar-04 8:50 l a u r e n 5-Mar-04 8:50  oh shame i think com / dcom are on the way out in the bigger scheme of things anyways so it might not have been the best way if the app has to live into the future and really it isnt that hard to add the sockets stuff there are a billion classes out there that make it a complete snap "there is no spoon" biz stuff   about me Re: Convert MFC Doc / View App to a COM server John M. Drescher5-Mar-04 9:03 John M. Drescher 5-Mar-04 9:03  l a u r e n wrote: it isnt that hard to add the sockets stuff I'm laughing because the program already has two different socket communication methods (named pipe + CSocket based) but neither would be easy to do what I need in the curent form. Know anything about SOAP? I'll take some time to think this one over before I go writing any code.. John Re: Convert MFC Doc / View App to a COM server l a u r e n5-Mar-04 9:21 l a u r e n 5-Mar-04 9:21  hehe soap ... simple object access protocol ... a fancy name for using http to talk to remote things i just do it the way a web browser does it "there is no spoon" biz stuff   about me Re: Convert MFC Doc / View App to a COM server basementman5-Mar-04 9:08 basementman 5-Mar-04 9:08  I hate to sound simplistic, but would using OutputDebugString() satisfy your needs? Or maybe you might want to look at Rob Manderson's Logging service.  onwards and upwards...  Re: Convert MFC Doc / View App to a COM server [EDITED] John M. Drescher5-Mar-04 9:22 John M. Drescher 5-Mar-04 9:22  I do already have a logging system (similar to Robs but not mfc). You may have sloved my problem. I could send a user message to the program from another app and have it spill the result in the log. Thanks. [EDIT] Now when I think of it the socket options do not seem very difficult. There was one other detail that was influencing my desire to have a COM server. I currently have several property sheets in a popup dialog in the main application (easter egg) that display most of this info. I was thinking that I could move the property sheet to the new application and use com/dcom to do the RPC / communications for me. [/EDIT] John Re: Convert MFC Doc / View App to a COM server [EDITED] basementman5-Mar-04 9:34 basementman 5-Mar-04 9:34  Glad to be of help. If you want to make it real simple, rather that doing the sockets implementation, simply have the app write out a file to a network shared folder that contains the tabbed dialog info (flattened out, of course) in response to an event. Your debugging program can then open and read that file. Or, you could implement another debugging socket like you said.  onwards and upwards...  Partial Editing in RichEditCtrl Rightoguy5-Mar-04 6:44 Rightoguy 5-Mar-04 6:44  I have a RichEditCtrl and in there we have the sql statement. What I am trying to achieve is have the RichEditCtrl act as a partial editing control where the user can type in certain areas and other place we have our reserved keywords which cannot be changed. Any Ideas or suggestion Vic Re: Partial Editing in RichEditCtrl James R. Twine5-Mar-04 7:17 James R. Twine 5-Mar-04 7:17  There is a protected character attribute that will send you EN_PROTECTED notifications on when the user tries to modify them. You can then take whatever action you need to. Lookup CFM_PROTECTED and EN_PROTECTED for more information. Peace! -=- James (Sonork:100.21837) [Tip for SUV winter driving survival: "Professional Driver on Closed Course" does not mean "your Dumb Ass on a Public Road"!] [Get Delete FXP Files Now!] How convert unsigned char[] to *char Joe_Valenz5-Mar-04 6:18 Joe_Valenz 5-Mar-04 6:18  Hello:I am working a biometric project, my problem is now that I need save the native finger data format in SQl Server Data Base format compatible (varchar). First It is declarate like unsigned char, then is copy through memcpy to other struct unsigned char... See the code: #define AC__UCHAR unsigned char static AC__UCHAR temp1[256]; static AC__UCHAR fpData[512]; int storeFingerPrintData() { memcpy(fpData, temp1, sizeof(temp1)); //store data finger in smart card for (int j=0;fpData[j] !=0;) { int lbDataIn = 0; for (int k=0; k<32; k++) { memcpy(&apdu.bDataIn[k],&fpData[j],sizeof(AC__UCHAR)); lbDataIn++; j++; } // here I can see the values through AfxMessageBox(apdu.bDataIn); recNo++; }; return ret; } How I convert in a char* the variable apdu.bDataIn unsigned char and How is the best way-format for save it in any table of SQL Server. Thanks and Regards. Joe. Joe_Valenz Re: How convert unsigned char[] to *char Prakash Nadar5-Mar-04 6:56 Prakash Nadar 5-Mar-04 6:56  char *pChar; pChar = &apdu.bDataIn; Interviewer (me) : "Did you install Linux all my yourself?" Candidate : "Yes i installed Linux all my yourself." Displaying data in an MDIChildWnd without a document slyone5-Mar-04 6:03 slyone 5-Mar-04 6:03  Hi, I've got some data and a message handler stored & controlled by the main frame of an MDI app, and would like to show the data in an MDIChildWnd. I can create a window with a standard child wnd OR my own child wnd. e.g. RECT pRect; pRect.top = 0; pRect.left = 0; pRect.bottom = 604; pRect.right = 394; m_pCamWnd = new CMyChildWnd; VERIFY(m_pCamWnd->Create( NULL, _T("Camera Input"), WS_CHILD | WS_VISIBLE | WS_OVERLAPPEDWINDOW, Rect, // this)); // (this was done in CMainFrame::OnCreate()). What I'm not sure about is, can I just derive my own class from CMDIChildWnd then override OnPaint() in order to actually output the data... My line of thinking being that CMDIChildWnd is derived from CFrameWnd which is derived from CWnd. So I'd really be overriding the OnPaint of it's 'grandparent'. Any advice on this would be greatly appreciated as I'm more than a little confused Dave PS sorry havin trouble gettin the [CODE] tags to work

Last Visit: 31-Dec-99 18:00     Last Update: 25-May-24 18:16 Refresh ᐊ Prev1...13482134831348413485134861348713488134891349013491 Next ᐅ

General    News    Suggestion    Question    Bug    Answer    Joke    Praise    Rant    Admin   

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