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MFC: Can't insert controls after inserting an ActiveX Control!! Davex_7-Mar-04 12:21 Davex_ 7-Mar-04 12:21  Hi, It's the first time I'm using ActiveX Control. I'm working with VS .NET 2003 and I must say that I'm a beginner to C++ and MFC. My problem is after I have inserted an ActiveX Control (any ActiveX control), I can't insert any other controls, like a Button, Edit Control, etc. I select the control I want and when I click to insert it where I want, nothing happen! This problem is only in my main dialog: the CFormView dialog. I need help here, I tried a few things, but without success! Thanks, Dave Re: MFC: Can't insert controls after inserting an ActiveX Control!! Davex_7-Mar-04 12:58 Davex_ 7-Mar-04 12:58  Ok, I found out that the ActiveX control seems to be a coincidence. It's more like a have reach a limit on the quantity of controls I can have in my dialog!!! Is it possible? I can insert one more control, and after that, no more control can be inserted!!! I don't know why it's doing this! Dave Re: MFC: Can't insert controls after inserting an ActiveX Control!! Ryan Binns7-Mar-04 17:22 Ryan Binns 7-Mar-04 17:22  Davex_ wrote: It's more like a have reach a limit on the quantity of controls I can have in my dialog!!! Is it possible? The Visual C++ dialog edit only supports 256 controls on the dialog. Windows allows many more, of course, but you'll have to either manually edit the resource file, or create the controls at runtime. Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact" Re: MFC: Can't insert controls after inserting an ActiveX Control!! Davex_8-Mar-04 4:49 Davex_ 8-Mar-04 4:49  Thanks, that's exactly my problem! I did a fast count of 249 controls! I'll redesign my dialog. Interfacing webcam with mfc hurr1can37-Mar-04 10:54 hurr1can3 7-Mar-04 10:54  Hi. I have a webcam and I want to capture frames from the webcam in my application. I am using c++ mfc programming. The main thing that I want to do is to capture frames at certain interval through my mfc application. Anyone got any advise or idea on how to do it? Thank you for any reply. Re: Interfacing webcam with mfc Alexander M.,7-Mar-04 11:07 Alexander M., 7-Mar-04 11:07  what does MFC have to do with a webcam?! this question is silly, because when u know how to capture from a webcam, then u know how to do it from MFC. Don't try it, just do it! Re: Interfacing webcam with mfc Andrew Walker7-Mar-04 11:54 Andrew Walker 7-Mar-04 11:54  You'll probably need the DirectX SDK. DirectShow has some examples that capture from cameras and display the output in a window (see the playcap example) If you can keep you head when all about you Are losing theirs and blaming it on you; If you can dream - and not make dreams your master; If you can think - and not make thoughts you aim; Yours is the Earth and everything that's in it. Rudyard Kipling Adding 2 very long numbers ?! engineer_ali7-Mar-04 9:20 engineer_ali 7-Mar-04 9:20  Hello please if anyone can help me in solving this prob.! I have to implement a C++ program which adds any 2 long numbers such as : 12345654151464 + 454645454 , or any other 2 similar numbers. I should use classes for this problem! so any suggestion please ? thank u ! Re: Adding 2 very long numbers ?! Alexander M.,7-Mar-04 10:12 Alexander M., 7-Mar-04 10:12  use __int64 for big numbers, for very big numbers you have to code an own lib. Don't try it, just do it! Re: Adding 2 very long numbers ?! Jörgen Sigvardsson7-Mar-04 11:58 Jörgen Sigvardsson 7-Mar-04 11:58  OLE/COM DECIMALs can hold 96 bit numbers. Take a look at the docs in MSDN. -- Ich steig dir nach.. Du riechst so gut.. Gleich hab ich dich! Sound In an App mavgoose7-Mar-04 9:16 mavgoose 7-Mar-04 9:16  How is it possible to get a program to play Midi \ Wav file when a button is pressed? I need my application to include 2-3 sound files which can be played when a button is pressed is this possible? if so how. And how do you display a bitmap on a button? Re: Sound In an App Mazdak7-Mar-04 9:39 Mazdak 7-Mar-04 9:39  mavgoose wrote: And how do you display a bitmap on a button? Search Botton control in this site and find lots if exampls. mavgoose wrote: How is it possible to get a program to play Midi \ Wav file when a button is pressed? Look into Audio part of this site. Mazy "A bank is a place that will lend you money if you can prove that you don't need it." - Bob Hope Re: Sound In an App Alexander M.,7-Mar-04 10:13 Alexander M., 7-Mar-04 10:13  sndPlaySound API Don't try it, just do it! Re: Sound In an App Curi0us_George7-Mar-04 15:56 Curi0us_George 7-Mar-04 15:56  The simplest way to play an audio file on windows is to use the PlaySound function. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/multimed/htm/_win32_playsound.asp Putting a bitmap on a button? Depends on whether you're using mfc, wtl, win32 api, .net or something else. There's probably a dozen tutorials on this site alone explaining it, though. Compiler Option Mazdak7-Mar-04 8:41 Mazdak 7-Mar-04 8:41  I have an username & password inside my exe file. I opened it with notepad and saw they are in pain text somewhere inside it. Somebody told me that there is an compiler option that encrypt variables or something like this. Is there such a thing exist or he sucks? Mazy "A bank is a place that will lend you money if you can prove that you don't need it." - Bob Hope Re: Compiler Option Alexander M.,7-Mar-04 10:19 Alexander M., 7-Mar-04 10:19  nothing like that... encrypt it using a PE crypter or just save the MD5(or other) hash of the password. Don't try it, just do it! Re: Compiler Option Mazdak7-Mar-04 10:23 Mazdak 7-Mar-04 10:23  Alexander M. wrote: encrypt it using a PE crypter or just save the MD5(or other) hash of the password Well, then the Key is visible and could be decrypted, but of course with a little more job. Mazy "A bank is a place that will lend you money if you can prove that you don't need it." - Bob Hope Re: Compiler Option Alexander M.,7-Mar-04 10:56 Alexander M., 7-Mar-04 10:56  no chance to decode MD5 Don't try it, just do it! Re: Compiler Option Michael Dunn7-Mar-04 10:27 Michael Dunn 7-Mar-04 10:27  Not a compiler option, but check out http://www.codeproject.com/string/cxr.asp[^] which is a great compile-time tool to encrypt literals. I use it in several of my apps. --Mike-- Personal stuff:: Ericahist | Homepage Shareware stuff:: 1ClickPicGrabber | RightClick-Encrypt CP stuff:: CP SearchBar v2.0.2 | C++ Forum FAQ ---- Pinky, are you pondering what I'm pondering? I think so Brain, but if we shaved our heads, we'd look like weasels! Re: Compiler Option Mazdak7-Mar-04 18:53 Mazdak 7-Mar-04 18:53  Thanks Mike and others for reply. Mazy "A bank is a place that will lend you money if you can prove that you don't need it." - Bob Hope Re: Compiler Option Gary R. Wheeler7-Mar-04 10:54 Gary R. Wheeler 7-Mar-04 10:54  As far as I know, there is no such compiler option. Your 'somebody' may have been thinking of an option to obfuscate .NET code. Software Zen: delete this; Re: Compiler Option Curi0us_George7-Mar-04 15:39 Curi0us_George 7-Mar-04 15:39  If you embed a password directly into an exe, it will be insecure. You can play with it to make it less obvious (e.g. XOR against some other non-secret value), but nothing you can do will actually make it secure. If the exe has access to the password, so does anyone who has the exe. Re: Compiler Option Ryan Binns7-Mar-04 17:30 Ryan Binns 7-Mar-04 17:30  If you absolutely must hard-code a password in the exe file, then I recommend you encrypt it, and then store the encrypted version in the exe. Then whenever you need to compare against it, encrypt the user-entered password and compare the encrypted passwords. I wouldn't do anything with plain-text passwords except encrypt them. Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact" Splitter Window Problem r00k137-Mar-04 7:36 r00k13 7-Mar-04 7:36  I have a SDI application with a splitter (left and right views). Left view is regular view(CView) created by the wizard. Right view is a form view with a pie chart drawed on it. Everytime i try to select File > New, it will give me assertion error. This is because of the pie chart, if i take out the drawing of the pie chart class on the right view then it works fine. However i need the pie chart to stay on there. How can i make this so when i hit File > New, it will try to open a new document on the Left view only and right view will not be reload or affected. Re: Splitter Window Problem Rob Manderson7-Mar-04 8:23 Rob Manderson 7-Mar-04 8:23  The trick here is to remember that debug asserts are your friend. Let the assert happen and use the debugger to examine the line that asserts. If it's deep in MFC (probably is) there are probably comments in the source explaining what's being asserted and why it might fail. It's those conditions you need to investigate to deal with the assert. Rob Manderson Colin Davies wrote: I'm sure Americans could use more of it, and thus reduce the world supply faster. This of course would be good, because the faster we run out globally, the less chance of pollution there will be. (Talking about the price of petrol) The Soapbox, March 5 2004

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