C / C++ / MFC

FirstPrevNext

_MAXPATH Paul Silvernail14-Jan-03 17:00 Paul Silvernail 14-Jan-03 17:00  Hi All, I would like to initialize a char array to hold a path retrieved from a registry key. If I used _MAXPATH constant from stdlib.h like this .... TCHAR MyPath[_MAXPATH], would this ensure that the array will be large enough? Even on 98, XP, NT? Thanks Paul Re: _MAXPATH Michael Dunn14-Jan-03 19:49 Michael Dunn 14-Jan-03 19:49  Never trust your inputs, especially when the source is the registry. Any user could go change your data to something longer than MAX_PATH, which would overrun your buffer, and we all know that only leads to Bad Things. Call RegQueryValueEx() with NULL and 0 as the buffer and size respectively, and you'll get back the exact size of the value in bytes. Alloc a buffer of that size, and you'll always have a big-enough buffer. Check the type as well, make sure it's REG_SZ like you expect. --Mike-- I'm bored... Episode I bored. 1ClickPicGrabber - Grab & organize pictures from your favorite web pages, with 1 click! My really out-of-date homepage Sonork-100.19012 Acid_Helm Re: _MAXPATH Paul Silvernail15-Jan-03 1:42 Paul Silvernail 15-Jan-03 1:42  Thanks Mike, I knew there had to be a way.;) Paul Re: _MAXPATH geo_m14-Jan-03 22:35 geo_m 14-Jan-03 22:35  I would not stick to it. As someone says, never trust your inputs - that's the first reason, second reason is, that this will hardcode the _MAX_PATH to your buffers forever. And now it might be that these 260 chars is enough, but will it be enough next year? recommended reading andyblack14-Jan-03 13:14 andyblack 14-Jan-03 13:14  Hi, I am currently undertaking a project a requires the development of a Windows based application. I have some experiance in C++ coding but up to now all the programs I have coded have been command prompt run applications. Just wondering if anyone knew of any good books that would get me started in learning how to program Windows applications. I have looked but there seems a vast amount out there. I am thinking I would rather use the MFC libarys rather than making direct calls to the Windows API itself. Good idea?? Any recommendations would be greatly appreciated Thanks in advance Re: recommended reading carrie14-Jan-03 23:25 carrie 14-Jan-03 23:25  Without MFC http://www.amazon.co.uk/exec/obidos/ASIN/157231995X/ref=sr_aps_books_1_1/202-2181440-5510268 With MFC http://www.amazon.co.uk/exec/obidos/ASIN/1572316950/ref=pd_sim_b_dp/202-2181440-5510268 Two of the best programming books for Windows as far as I know. They also double as great weightlifting training because of the size of them Packaging and DLLs LukeV14-Jan-03 12:45 LukeV 14-Jan-03 12:45  Hi, how can I be sure to include all needed DLLs with my packages? I'm using Depends but it shows a bunch of DLLs, such as Kernel or GDI and others. Some of them are probably already on the user's system but what I need to know if which one to include and where to install them (directly in the installation path or system32) ??? Thanks! --------------- Tired of Spam? Introducing InboxShield® for Microsoft® Outlook® http://www.edovia.com Re: Packaging and DLLs Jim Crafton14-Jan-03 16:56 Jim Crafton 14-Jan-03 16:56  if you have an MFC app, then any of the dll's named mfcXXX.dll you will need to redistrib. Also msvcrtXXX.dll. If you have any C++ that touches the Standard Library, then you will probably need msvcpp60.dll (I am assuming you are using VC6, and the STL that comes with it, if you are using STLPort's STL then use their lib) For other stuff, you'll have top track that down. For example if you are using DirectShow in your app, then there are redistribs with that (don't know what they are). Likewise for other stuff like ADO, et al... ¡El diablo está en mis pantalones! ¡Mire, mire! Real Mentats use only 100% pure, unfooled around with Sapho Juice(tm)! Re: Packaging and DLLs LukeV15-Jan-03 4:33 LukeV 15-Jan-03 4:33  I'm using STL and ATL 7.0... --------------- Tired of Spam? Introducing InboxShield® for Microsoft® Outlook® http://www.edovia.com Re: Packaging and DLLs Jim Crafton15-Jan-03 5:37 Jim Crafton 15-Jan-03 5:37  OK well you should be OK. Be warned that I do NOT have VC7 and have not used it, so there could be other issues, different libs, etc. With ATL 3, depending on how you built your project, you also had to distribute the ATL.dll and there was a different version for Win9x OS vs. NT OS. Don't know if this is still the case. ¡El diablo está en mis pantalones! ¡Mire, mire! Real Mentats use only 100% pure, unfooled around with Sapho Juice(tm)! Consuming web services in a C++ app User 988514-Jan-03 11:58 User 9885 14-Jan-03 11:58  Is there a C++ library that lets you create SOAP requests and read responses, so that I can create a C++ proxy class that encapsulates a web service? My article on a reference-counted smart pointer that supports polymorphic objects and raw pointers modified 29-Aug-18 21:01pm. accessing selected text in a fore ground window Gene Yu14-Jan-03 11:10 Gene Yu 14-Jan-03 11:10  Can any one tell me how to get to the selected text in an edit/richedit control (or any control having text that could be highlighted) of a foreground window from my own application? What about accessing a selected text in IE browser? One can see such use in Microsoft Boolshelf -- highlight any word in any window and then click on the QuickShelf icon in the system tray to get the meaning of the word! Tomasz Sowinski in the VC++ message board mentioned earlier using a combination of (1) calling the WIN32 API GETFOREGROUNDWINDOW to get a handle to the window and (2) sending the EM_GETSEL window message to get a pointer to the selected text. But I am not sure if this limits only to the case when the foreground window is itself a edit/richedit control. Would appreciate very much any answers to these questions! Gene Yu - gene4yu@yahoo.com attach document to an application aguest14-Jan-03 10:53 aguest 14-Jan-03 10:53  hello, I wants attach an application that I board create with a Word document or pdf,in way:whene I click on the document my application start in first. Re: attach document to an application xxhimanshu14-Jan-03 19:53 xxhimanshu 14-Jan-03 19:53  :-Oi guess you will have to write something into ergistry so that your application runs whenever the word is opened or cleicked to open any document. i don't have a clue how to do it? just in case maybe you are smart enuf to proceed if there is an idea i am writing this here. I am not sure whether this will work or not. but i guess it should. cheers.. Himanshu crashes in GetWindowPlacement ns14-Jan-03 10:49 ns 14-Jan-03 10:49  I tracked it down to: BOOL CWnd::GetWindowPlacement(WINDOWPLACEMENT* lpwndpl) const { ASSERT(::IsWindow(m_hWnd)); lpwndpl->length = sizeof(WINDOWPLACEMENT); return ::GetWindowPlacement(m_hWnd, lpwndpl); } and its at the assert that its unhappy. I did get a non-null pointer imageDisplay that I used: CImageDisplay* imageDisplay =m_imageDisplayVector[0]; // Get the window's current size and position. imageDisplay->GetWindowPlacement(&wp); Thanks Appreciate your help, ns Re: crashes in GetWindowPlacement Nitron15-Jan-03 14:41 Nitron 15-Jan-03 14:41  What is m_imageDisplayVector[0] ?? is it a valid ptr? Where do you initialize it and what is it's value? - Nitron "Those that say a task is impossible shouldn't interrupt the ones who are doing it." - Chinese Proverb GetActiveView - ns14-Jan-03 10:42 ns 14-Jan-03 10:42  My GetActiveView is returniung a null pointer. Maybe thius is because I dont have an active view? When I run the app, it pops up with one CFormView in it which I was assuming is the so called active view> Am I right? Or do I have to do something to make a view active? Appreciate your help, ns need to get to Viewclass from mainframe ns14-Jan-03 10:31 ns 14-Jan-03 10:31  I had a way of getting the pView pointer but its not working anymore. I posted on anotehr thread. What I would like is to get a fresh sample or pointer on how to get to the view class members from the mainframe. Its a CFormView based MDI project with only 1 doc and only 1 view at this stage..... Appreciate your help, ns how do you attach a dialog resource to tab pages joshfl14-Jan-03 9:37 joshfl 14-Jan-03 9:37  hi, i am poking aroung at a tabcntl, and i was wondering if theres a way to attach an individual dialog resource to each tabcntl tab? seems like the easiest way for me to edit my tabs would be this way. can it be done? todo.... :: insert inpirational text here :: Re: how do you attach a dialog resource to tab pages Nitron15-Jan-03 14:45 Nitron 15-Jan-03 14:45  You may want to check this[^] out. - Nitron "Those that say a task is impossible shouldn't interrupt the ones who are doing it." - Chinese Proverb How do I draw a border around text? clintsinger14-Jan-03 9:29 clintsinger 14-Jan-03 9:29  I would like to draw some text then outline it with a black border. How does one do something like this? Christian Graus are you reading this? You seem to be a graphics wizard Cheers, Clint Re: How do I draw a border around text? Chris Losinger14-Jan-03 10:15 Chris Losinger 14-Jan-03 10:15  use GetTextExtent or DrawTextEx with the DT_CALCRECT flag to find the size of the text. then draw a rect of the appropriate size at the appropriate place. that's a rectangular border. if you actually want an outline around the individual characters (like you might find in a graphics package), then you're in for some work. one way is to draw it slightly larger in black, then draw normal size on top - one character at a time. or, you could draw the text, use some kind of filter to detect the border, overlay the images, etc.. -c I'm not the droid you're looking for. ThumbNailer Re: How do I draw a border around text? clintsinger14-Jan-03 11:27 clintsinger 14-Jan-03 11:27  Could I draw the whole string slightly larger than one I overlay or do I have to do the characters one at a time? Cheers, Clint Re: How do I draw a border around text? Chris Losinger14-Jan-03 12:24 Chris Losinger 14-Jan-03 12:24  if you draw the whole string, you could run into alignment problems, since the spacing between characters may be different between the two font sizes. but, it might be worth a shot. -c I'm not the droid you're looking for. ThumbNailer Re: How do I draw a border around text? benjymous14-Jan-03 23:02 benjymous 14-Jan-03 23:02  One fairly easy solution is just to draw your text 4 times in black, offset by one pixel in each direction, then once in your desired colour in the middle i.e. Text( x-1,y, "Hello", BLACK ) Text( x+1,y, "Hello", BLACK ) Text( x,y-1, "Hello", BLACK ) Text( x,y+1, "Hello", BLACK ) Text( x,y, "Hello", WHITE ) or you could just use a for loop if you want a thicker border Obviously this all relies on your text rendering code being nice and fast, but if you're using anything modern then it should be -- Help me! I'm turning into a grapefruit!

Last Visit: 31-Dec-99 18:00     Last Update: 22-Jun-24 3:30 Refresh ᐊ Prev1...15554155551555615557155581555915560155611556215563 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.