C / C++ / MFC

FirstPrevNext

Re: Optimization Code-o-mat19-Dec-11 4:13 Code-o-mat 19-Dec-11 4:13  Either turn off 'Optimize for speed' or 'Run Time Error Checks[^]' as they are apparently not compatible. > The problem with computers is that they do what you tell them to do and not what you want them to do. < > If it doesn't matter, it's antimatter.< Adding a int array inside CStringArray VCProgrammer19-Dec-11 1:07 VCProgrammer 19-Dec-11 1:07  Hi all, i have made a CStringArray, and inside that array i have put 5 items of CString type, but i want to add one more item which is int array inside that item. How can i do this? Thanks in advance Re: Adding a int array inside CStringArray CPallini19-Dec-11 1:26 CPallini 19-Dec-11 1:26  What do you really need to do? Do you have to store the integers or their string representation? If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke [My articles] Re: Adding a int array inside CStringArray Richard MacCutchan19-Dec-11 2:12 Richard MacCutchan 19-Dec-11 2:12  You need to rethink your design; don't mix different types in this way, it will likely lead to problems in the future. Unrequited desire is character building. OriginalGriff I'm sitting here giving you a standing ovation - Len Goodman Re: Adding a int array inside CStringArray Albert Holguin19-Dec-11 3:12 Albert Holguin 19-Dec-11 3:12  +5, don't store an int array in a CStringArray Re: Adding a int array inside CStringArray Richard MacCutchan19-Dec-11 6:00 Richard MacCutchan 19-Dec-11 6:00  Unrequited desire is character building. OriginalGriff I'm sitting here giving you a standing ovation - Len Goodman Adapter Classes for using C++ library through JNI pandit8419-Dec-11 0:26 pandit84 19-Dec-11 0:26  Hi , I have created C++ library(3 dlls) and I am using these library in my Java UI through JNI. In my JNI I am modifiying jobjectArray i.e. adding data inside my jobjectArray and returning it from JNI. Now my problem is if in future my C++ library changes I will have to change my JNI code. What should I do to 'tune' my JNI so that it will change with minimum impact. Does it require Adapter classes or wrapper clases. Any information on this will help me. Thanks Re: Adapter Classes for using C++ library through JNI CPallini19-Dec-11 3:12 CPallini 19-Dec-11 3:12  [Byrne voice] Well we can't predict the future But we're trying to do the best that we can [/Byrne voice] I suppose 'the best you can' here is: "follow the KISS principle, keep it simple". Since you cannot predict the future changes, make your overall design simple and well documented. If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke [My articles] CWinThread columbos1492718-Dec-11 22:45 columbos14927 18-Dec-11 22:45  In the main thread of my app i do some work and once in a while i create another helper thread to do some job using: AfxBeginThread function which returns me a CWinThread object reference. But before i will create once again the helper thread i have to be sure that the previous is done. Now im using the CEvent object to signal from the helper thread that he is done but my app crashes sometimes. Can i use the CWinThread object to find out whether the previous thread is done? Thanks. Re: CWinThread CPallini18-Dec-11 23:12 CPallini 18-Dec-11 23:12  Have a look at MSDN documentation: "Multithreading: Terminating Threads"[^]. The "Retrieving the Exit Code of a Thread" section gives all info you need (read carefully the steps needed in order to retrieve the exit status of a CWinThread). If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke [My articles] Re: CWinThread Albert Holguin19-Dec-11 3:15 Albert Holguin 19-Dec-11 3:15  Think you probably need to figure out the cause of the crash (that's your main issue), but you can also use the main thread handle in the CWinThread to "wait on" (WaitForSingleObject). Save As Image john563218-Dec-11 22:08 john5632 18-Dec-11 22:08  Can I save drawn rectangle into an bmp image? Re: Save As Image CPallini18-Dec-11 22:18 CPallini 18-Dec-11 22:18  Yes, you may do, see here for a recipe[^], also have a look at this useful sample code[^]. If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke [My articles] Re: Save As Image john563218-Dec-11 23:44 john5632 18-Dec-11 23:44  But how to save drawn rectagle into an image? Re: Save As Image CPallini18-Dec-11 23:51 CPallini 18-Dec-11 23:51  Drawn rectangle (drawn everything) is in 'the content' of current paint HDC (or CDC if you are using MFC), hence, for instance, inside the WM_PAINT message handler you may copy current paint HDC content into image HDC, using BitBlt function). If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke [My articles] Re: Save As Image john563219-Dec-11 0:24 john5632 19-Dec-11 0:24  Thanks for reply, but the link you suggested doing the same thing, I am confused to save image on specific path????? Re: Save As Image CPallini19-Dec-11 0:33 CPallini 19-Dec-11 0:33  Well, once you have the bits copied to the bitmap then you may save the bitmap itself. You may use, for instance CImage class (see, for instance "Save CBitmap to File"[^] or, if you want to go to the metal, see "Storing an Image"[^] If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke [My articles] copying from large buffer to smaller VCProgrammer18-Dec-11 21:21 VCProgrammer 18-Dec-11 21:21  Hi all, i have two char buffers char a[1000],char a1[100]. i want to copy 100 value from a to a1, but everytime the index where we should start copying is different i.e. sometime it should start copying from a[100], other time from a[268]. For Copying from one buffer to another we can use function memcpy_s but it starts copying from zero. Is there any alternate for this. Thanks in advance Re: copying from large buffer to smaller CPallini18-Dec-11 21:52 CPallini 18-Dec-11 21:52  Just continue using memcpy_s starting from the right address, e.g.: C++ errno_t result; result = memcpy_s(a1, sizeof(a1), &a[268], sizeof(a1)); If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke [My articles] Re: copying from large buffer to smaller VCProgrammer19-Dec-11 1:04 VCProgrammer 19-Dec-11 1:04  thanks its done Re: copying from large buffer to smaller CPallini19-Dec-11 1:24 CPallini 19-Dec-11 1:24  You are welcome. If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile. This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke [My articles] Thread sync columbos1492718-Dec-11 3:28 columbos14927 18-Dec-11 3:28  Im using CCriticalSection object as a parameter to CSingleLock. When i try to create the lock object i get the:"Access violation reading location". Why could it be? Thnks Re: Thread sync Chris Losinger18-Dec-11 4:24 Chris Losinger 18-Dec-11 4:24  can you show us your code? image processing toolkits | batch image processing Re: Thread sync columbos1492718-Dec-11 4:35 columbos14927 18-Dec-11 4:35  Hello, I think i know what my mistake was. I used the same CCriticalSection as a parameter to different CSingleLock objects to synchronize different resources. I have four threads two of them use one mutual queue and the other two use other queue so i used the same CCriticalSection object as a parameter to two CSingleLocks. Now i defined seperate lock for each queue and it works fine. Thanks any way clipboard and file Member 820281618-Dec-11 0:37 Member 8202816 18-Dec-11 0:37  Hi! I would like to put a file in the clipboard like when you click on a file and you copy, how can I do that? I tried in c++ with setclipboarddata() with filename (49158) and filenameW (49159) format but doesn't work, inside the clipboard there are some other formats that I don't know. The complete list of the format is: 49161, 49268, 15, 49349, 49340, 49158, 49159, 49171.

Last Visit: 31-Dec-99 18:00     Last Update: 15-May-24 15:57 Refresh ᐊ Prev1...1090109110921093109410951096109710981099 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.