C / C++ / MFC

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Re: Populating List Boxes Tomasz Sowinski25-Apr-01 23:59 Tomasz Sowinski 25-Apr-01 23:59  You need to call CDialog::OnInitDialog first. Before this call, your member variable is not associated with HWND. BOOL CMyDialog::OnInitDialog() { CDialog::OnInitDialog(); m_lsCis.AddString("Whatever"); return TRUE; } Tomasz Sowinski http://www.shooltz.com.pl Dial-Up Server Joe O'Connor25-Apr-01 8:45 Joe O'Connor 25-Apr-01 8:45  Hi, Is it possible to start/stop the Dial-Up Server process automatically. I have used the RAS functions to create a service that connects to a running Dial-Up server, but is it possible to use these functions to start/stop the actuall server. The registry key: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\RemoteAccess\CallAccess changes when the Dial-Up Server is started manually if this is of any use!!. Thanks. Joe. MAC format text file newline character? Peter Pearson25-Apr-01 8:40 Peter Pearson 25-Apr-01 8:40  Does anyone know the LF character (or whatever is used to signify a newline in a MAC format text file)? I'm trying to convert a text file from MAC format to DOS format, and I was under the impression MAC format was the same as UNIX format with just a LF, but this doesn't seem to be the case. Cheers, Peter Pearson Re: MAC format text file newline character? - Don't worry Peter Pearson25-Apr-01 8:53 Peter Pearson 25-Apr-01 8:53  Just found it. MAC: CR UNIX: LF DOS: CRLF Cheers, Peter Problem in HWND for MCIWndCreate ... Hadi Rezaee25-Apr-01 8:29 Hadi Rezaee 25-Apr-01 8:29  <<< In the name of GOD >>> Hi all. In my program i used of MCI functions, also i make HWND hMCIWnd; in member variable ... I used of MCI functions in two functions: HWND hMCIWnd; // IS MEMBER VARIABLE . . . void CEditorDlg::PlayDialog() { hWndMCI = MCIWndCreate(m_hWnd, AfxGetInstanceHandle(), MCIWNDF_SHOWNAME | WS_VISIBLE, szFilePath); MCIWndOpen(hWndMCI, szFilePath, NULL); MCIWndPlay(hWndMCI); } . . . void CEditorDlg::DestroyDialog() { MCIWndClose(hMCIWnd); MCIWndDestroy(hMCIWnd); } I haven't any problem in playing music and movie, but when my program is terminate, windows show error message to me and must close the program, so i think that this problem is for HWND hMCIWnd;, What is your comment ? Please tell me. My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Statically linking the MFC 25-Apr-01 8:02 25-Apr-01 8:02  I have a big problem, I need to build my little project with the MFC dll's statically linked, but the executable that I get is about 2Mb!! I think that not all the functions that are in the MFC dll's are used by my application, so the question is: There is any way to link my project generating a smaller exe, and without dll dependencies? All suggestions will be welcome Thanks Re: Statically linking the MFC Wayne Fuller25-Apr-01 8:19 Wayne Fuller 25-Apr-01 8:19  That is awfully big for a little project. If you have any bitmaps or anything in the resources, those go into the final executable also. Sounds like that is the problem. Wayne Re: Statically linking the MFC 25-Apr-01 8:30 25-Apr-01 8:30  There is nothing big in the resources. The guilty of the size of the file are the MFC dll's that are statically linked. (note that the exe with the dll's dinamically linked is only 40kb). but the problem is that I need to generate a small exe with no dll dependencies. Re: Statically linking the MFC Chris Meech25-Apr-01 8:38 Chris Meech 25-Apr-01 8:38  An App Wizard generated dialog based application with MFC statically linked only produces an exe of 192 KB in Release mode, but in Debug mode it is around 2049 KB. I suggest you go back and make sure that you are building your executable in release mode. Chris Re: Statically linking the MFC 25-Apr-01 10:32 25-Apr-01 10:32  really it is, now the project is only 140k!!! Thank you very much for the help. I didn't know what is the diference between debug mode and relase mode, and I can see now that is very important for the size of the executable. Thanks again, and nice coding!! Re: Statically linking the MFC Wayne Fuller25-Apr-01 9:14 Wayne Fuller 25-Apr-01 9:14  Chris just stole my thunder. I was going to suggest that there is almost no way a small project should be that big since the MFC DLL is only ~900kb. You must be in debug mode. Wayne Re: Statically linking the MFC 25-Apr-01 10:34 25-Apr-01 10:34  really it is, now the project is only 140k!!! Thank you very much for the help. I didn't know what is the diference between debug mode and relase mode, and I can see now that is very important for the size of the executable. Thanks again, and nice coding!! WinAPI functions 25-Apr-01 7:49 25-Apr-01 7:49  HI folks, I used to programm a lot using MFC but quite a lot people told me that this would not be such good for the performance of programs as writing just using the WinApi an they also said for MFC the user needs to have certain Dlls that might be unavaiable and my programs might not work. So I tried to start programming direct WINAPI but it seems to me MS did nearly explain nothing in their msdn documantadion.And I noticed manny function such as the AddString- method of the CListBox were missing. Right now I'm searching a way to comunicate with things like Listboxes,Buttons and Edits which I succeded to add to my window. Does anybody knows a good adress to find information about programming in the Winapi or can give me a clue how to solute my comunication-with-my-windowitems-problme ? I would be glad about every Help THanks a lot for every answer Have a nice Day Alexander Re: WinAPI functions 25-Apr-01 8:02 25-Apr-01 8:02  Why just not bind statically to the MFC lib in your release build, then you don't have to worry about the MFC dll when you distribute. Re: WinAPI functions Wayne Fuller25-Apr-01 8:12 Wayne Fuller 25-Apr-01 8:12  There are many books dealing with this subject. Probably the best is "Programmin Windows" by Charles Peltzoid ( spelling might be wrong on last name ). In WinAPI programming, windows talk to each other via the SendMessage or PostMessage functions. So what MFC does is just wrap this call in a class function. -------------------------------------------------------------------------- In MFC: extern CListBox lb; lb.AddString( _T("Some String") ); -------------------------------------------------------------------------- In WinAPI extern HWND hwndLB; SendMessage( hwndLB, LB_ADDSTRING, 0, _T("Some String") ); -------------------------------------------------------------------------- Both code excerpts do the same thing. Hope that helps. Wayne Re: WinAPI functions Hadi Rezaee25-Apr-01 8:34 Hadi Rezaee 25-Apr-01 8:34  I'm not sure but checkout: http://www.wotsit.org/ My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Inserting data into an existing file... CMFC6.0VS.NETUser25-Apr-01 7:45 CMFC6.0VS.NETUser 25-Apr-01 7:45  I have a configuration file that gets really big plus the memory needed is very high to load, use, and save file. I know i can open a file w/out losing the data I had before when opening a file using the modeCreate bit on. then I can overwrite data using seek() and the Write() or WriteString() for example.. (note I use C/C++(//) comments even on the lines of my file.) //Load State This is a very boring file. //Load State //Save State// file size not changed This is *******boring file.]// Overwritten "a very " w/ "*******" //Save State Now I want to use overwriting and inserting of data in my configuration file. Here is what I tied... //Load State .... [section ref] 48 [section ref] 23 .... //Load State //Save State// file size not changed .... [section ref] 23458ection ref]// Overwritten 48 but also Overwritten '\n' and "se" of the next line 16457 .... //Save State So what I need is a memory saving function to extend the file x bytes and move all the following data down x bytes. Here is what I need... //Load State .... [section ref] 48 [section ref] 23 .... //Load State //Save State// file size will hope to be changed .... [section ref] 23458// Overwritten 48 and added 3 bytes and pushed the down 3 bytes and extended the file 3 bytes [section ref] 16457 .... //Save State Thank you for your time. I hope everyone can understand what I am getting at. Re: Inserting data into an existing file... Wayne Fuller25-Apr-01 8:04 Wayne Fuller 25-Apr-01 8:04  1) Open the existing file. 2) Open a new file. 3) Read the data to the point of insertion, writing this to the new file. 4) Write the new data to the new file. 5) Read the rest of the data to the end of the file, writing this to the new file. 6) Close old file. 7) Close new file. 8) Delete old file. 9) Rename new file to old file. Hope that helps. Wayne Re: Inserting data into an existing file... CMFC6.0VS.NETUser26-Apr-01 5:15 CMFC6.0VS.NETUser 26-Apr-01 5:15  I know this would work but the configuration file can get very big is save alot I am looking at file access proformance at this time. How to add a char to standard widows clock (in TaskTray)? 25-Apr-01 5:49 25-Apr-01 5:49  I need to add one char after standard clock window in tray. I have it's HWND. I also understand I have to subclass this window but can anyone give me a hint how exactly? Source code very welcome! Thanx in advance, Julia Update menu ... Hadi Rezaee25-Apr-01 5:40 Hadi Rezaee 25-Apr-01 5:40  <<< In the name of GOD >>> Hi all. I deleted the menu item from my main menu, Now, i want to update the menu, because the menu not compeletly clear of my menu !!! HMENU hMenu = ::GetMenu(m_hWnd); ::DeleteMenu(hMenu, 4, MF_BYPOSITION); Thanks for reply ... My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: Update menu ... Hadi Rezaee25-Apr-01 7:50 Hadi Rezaee 25-Apr-01 7:50  I found my answer ... My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Change width of a tab in a propertypage 25-Apr-01 5:06 25-Apr-01 5:06  How can i change the width of a tab in the property page? Works it automatically via modifystyle or have i to do it manualy via set windowpos or similar and where can i do this? Does anyone know? Which function throws exception? 25-Apr-01 2:06 25-Apr-01 2:06  Is it possible to get info of which function throws an exception? I want to know if CFile::Close() throws an exception in the CATCH block. CATCH( CFileException, e ) { // Does something like this exist? if( e->ThrowingFunc() == Close ) { //some code } } Thanks Daniel Re: Which function throws exception? Chris Meech25-Apr-01 8:30 Chris Meech 25-Apr-01 8:30  Just put the CFile::Close() method into it's own try/catch block and that way you will know which function has thrown the exception. In terms of wether an exception 'knows' what function it has been thrown from, I don't believe that this exists. Chris

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