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VC++ -VB access RaajaOfSelf10-Jul-03 23:08 RaajaOfSelf 10-Jul-03 23:08  I am intreste dto knwo ,what are teh issues will arise if i write a OCX /DLL in VB and use it in vc++ .If there is any articleon that ,please do mention Progress bar Member 42425910-Jul-03 22:58 Member 424259 10-Jul-03 22:58  Hello friends, I am working with wizard sheet. on one of the page i have a progressbar. the progressbar works fine on all O.S. but if i run this application on winXP the progressbar move (progresses) till half. The application is working fine i mean the work which it should be doing but the progressbar doesnt move ahead. can anybody helpme out of this problem... Thanx in advance TAKE CARE Re: Progress bar David Crow11-Jul-03 2:59 David Crow 11-Jul-03 2:59  siid wrote: The application is working fine i mean the work which it should be doing but the progressbar doesnt move ahead. Are you saying that the work continues as normal, but that the progress bar just stops? casting problem Jerome Conus10-Jul-03 22:57 Jerome Conus 10-Jul-03 22:57  Hi ! In my app, I'm using a class that I didn't develop (and I have no access to the source code), which implements a linked list where pointers are stored with the type long. From this list, when I'm extracting a pointer at a specific index, I used to cast it into the needed type, for instance : Entity* pEntity=(Entity*)MyList->GetPointerAt(3); But now, I would like to get rid of these old C casts and use the C++ cast. Here is what I did : Entity* pEntity=static_cast<entity*>(MyList->GetPointerAt(3)); But now, the compiler is rejecting this line, telling that the cast from 'long' to 'Entity*' is not possible. Anyone could tell me how I should implement this cast with only C++ casts ? Thank you for your help ! Jerome Re: casting problem iceage10-Jul-03 23:09 iceage 10-Jul-03 23:09  see this: http://www.codeguru.com/forum/showthread.php?s=&threadid=253032 Re: casting problem jhwurmbach10-Jul-03 23:12 jhwurmbach 10-Jul-03 23:12  You need to use Entity* pEntity = reinterpret_cast < Entitiy* > (MyList->GetPointerAt(3)); because you are casting an number (your long-variable)into something completely different: A pointer to an Entity-Object. Static_cast can cast between differnt types of numbers, but you need to get something stronger to cast a number into a pointer. And that is reinterpret_cast. My opinions may have changed, but not the fact that I am right. callback question andyg.10110-Jul-03 22:27 andyg.101 10-Jul-03 22:27  Can somebody explain to me what a callback function is ? is it just a recursive function or have I missed the point? Andy Re: callback question Ryan Binns10-Jul-03 22:36 Ryan Binns 10-Jul-03 22:36  A callback function is one whose pointer you give to an object or function, and it gets called by the other object or function when a certain condition arises. For example, the SetTimer() Win32 API function can take a pointer to a function that gets called when the timer period elapses. The function that you pass to SetTimer and gets called is the callback function. A slightly different example is used with the EnumFontFamilies() function. You pass a pointer to a callback function, and the callback function gets called once for every font that matches the criteria specified in the call to EnumFontFamiles(). In this case, the callback function is called as many times as needed before the EnumFontFamilies() function returns, as opposed to SetTimer() above, where the callback function is called sometime in the future. Hope this explains it more 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: callback question andyg.10110-Jul-03 23:00 andyg.101 10-Jul-03 23:00  Yes that covers it thanks. Re: callback question Ryan Binns10-Jul-03 23:43 Ryan Binns 10-Jul-03 23:43  You're welcome 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" Simple HTML editor Jeremy Pullicino10-Jul-03 22:19 Jeremy Pullicino 10-Jul-03 22:19  Hello, I have an application and want to add a simple HTML editor to it. All I need is to allow the user to use bold, underline and italics to standard text - no scripts, activeX etc. IHTMLView is a bit bulky for my needs and developing from scratch is not an option right now. Does anyone know of an implementation that I could use, either free or for purchase (preferably free of course). thanks, Jeremy Pullicino C++ Developer Homepage Re: Simple HTML editor Jeremy Pullicino10-Jul-03 22:47 Jeremy Pullicino 10-Jul-03 22:47  Forgot to mention: VC++ 6.0 Jeremy Pullicino C++ Developer Homepage Re: Simple HTML editor Rage10-Jul-03 22:58 Rage 10-Jul-03 22:58  What type of application do you have ? if it is MDI, you could use two views of your document, one scrollview for editing, associated to a HTMLView for previewing. ~RaGE(); Re: Simple HTML editor jmmolina16-Jul-03 23:19 jmmolina 16-Jul-03 23:19  Hello, I'm also looking for a WYSIWYG HTML editor : bold, underline... Very simple. Java does include such a component in its SWING package. My solution would be to use an ActiveX control but I can't find any. I'm not an ActiveX control but Web components should work fine for a desktop application, am I right ? Actually I just found : XEditor (120$ !) at http://download.com.com/3000-2403-10184818.html?tag=lst-0-25 Google search for : ActiveX HTML Editor http://www.itwriting.com/htmleditor/index.php (in C#) : I have no idea how he did it, he used the MS HTML engine ! codeproject search for : MSHTML http://www.codeproject.com/dotnet/mfchtmledit.asp?target=mshtml User comments : http://www.azsoft.free.fr/HtmlEdit/HTMLEdit.VC6.zip I think that last link is the solution to our problem. Check out the demo it's perfect : bold, underline... JM. Molina CRT library? error C1083 DaveE9th10-Jul-03 21:50 DaveE9th 10-Jul-03 21:50  When I compile a program, I get a C1083 error message saying that my header could not be found. I checked out the MSDN site and it said I'm missing the C run-time library. How might I resolve this? Thanks VC++ 6.0 Re: CRT library? error C1083 Kippesoep10-Jul-03 21:59 Kippesoep 10-Jul-03 21:59  Missing the CRT library? More likely, your #include directives are wrong, (like using #include <myheader.h> instead of #include "myheader.h") or you haven't set up the include directories correctly (in VC6, that's Tools... Options... Directories, or for your project: Project... Settings... C/C++... Category: Preprocessor) Re: CRT library? error C1083 DaveE9th10-Jul-03 22:09 DaveE9th 10-Jul-03 22:09  I've created and added my own header to the project. Why do I need the CRT library at all? I only am using one header file, the one I added. #include "LinkedList.h" I'm stuck on this one. VC++ 6.0 Re: CRT library? error C1083 Kippesoep10-Jul-03 22:25 Kippesoep 10-Jul-03 22:25  CRT is the C runtime library. It includes the standard C functions, such as printf, strcpy, etc... Which header can't it open, though? Post the full text of the error message. I still find it rather difficult to believe it's the CRT that causes this. Re: CRT library? error C1083 DaveE9th11-Jul-03 7:11 DaveE9th 11-Jul-03 7:11  I'm still trying to learn the VC++ 6.0 compiler, it's more challenging than C++ itself. Anywho, I lost my code somehow. I'll see if I can recreate the C1083 error. Thanks, Dave the problem to use OpenDriver in DLL gdzfy10-Jul-03 21:43 gdzfy 10-Jul-03 21:43  I am writing a DLL and I have to use the function OpenDriver() to open a DLL,but it fail.is it forbided to open a dll in another dll??.how can i do?thanks a lot. a good man Re: the problem to use OpenDriver in DLL Ryan Binns10-Jul-03 22:38 Ryan Binns 10-Jul-03 22:38  Use LoadLibrary(), same as an application 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: the problem to use OpenDriver in DLL gdzfy11-Jul-03 2:15 gdzfy 11-Jul-03 2:15  but if i use the loadlibrary(),i find i can't make it work properly ,even in a application a good man in china Re: the problem to use OpenDriver in DLL Ryan Binns11-Jul-03 2:37 Ryan Binns 11-Jul-03 2:37  Why doesn't it work? I've never had any problems using LoadLibrary() in a DLL or an application. Is the DLL located in the windows system directory or in the PATH? 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: the problem to use OpenDriver in DLL gdzfy11-Jul-03 2:49 gdzfy 11-Jul-03 2:49  i am doing the SDK programing. there is a sample appliaction in the SDK.the SDK document tell us to use the OpenDriver() to open a dll (Impeg32.dll)before we can use the API listed in the document,and it’s simple application does so ,and it is ok,but now my task is to write a dll. and i have try to use the LoadLibrary() instead the OpenDriver in it's simple application ,but it can work properly. a good man in china Re: the problem to use OpenDriver in DLL Ryan Binns11-Jul-03 2:59 Ryan Binns 11-Jul-03 2:59  Ok. It makes sense now . You're trying to open a device driver, not a simple DLL like I though you meant. Sorry about that I haven't actually used had to use OpenDriver(), so I can't help much, but there's nothing that suggests it wouldn't work from inside a DLL. In fact, now I think of it, it should work no problem at all - gdi32.dll must use it to load the display device drivers. Does the driver you're using actually exist on the computer? Are you passing the correct registry entry (or DLL file name) as the first parameter? Are you passing NULL as the second parameter? Are you passing a valid value for the third parameter? Some drivers may fail to load if this value is incorrect. That's about all I can think of at the moment 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"

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