C / C++ / MFC

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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 How to create a gray back ground upon Application start up hearties24-Apr-01 23:59 hearties 24-Apr-01 23:59  I want the application window to have a gray background upon start up.. does anyone know how to do it? Re: How to create a gray back ground upon Application start up Michael Dunn25-Apr-01 7:38 Michael Dunn 25-Apr-01 7:38  Two ways. 1 - When you register your window class, create a gray brush and pass that as the background brush in the WNDCLASS(EX) struct. 2 - Handle the WM_ERASEBKGND message and paint the gray background when that message is sent to you. --Mike-- http://home.inreach.com/mdunn/ The Signature, back by popular demand: Buffy. Pajamas. Re: How to create a gray back ground upon Application start up Erik Thompson25-Apr-01 7:38 Erik Thompson 25-Apr-01 7:38  In your window class that is registered set the brush to the stock brush index of COLOR_BTNFACE if you don't think the user will play around with their windows color scheme else pass in the handle to the GRAY_BRUSH from GetStockObject. Cheers, -Erik ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ My thoughts are my own and reflect on no other. Save RichEdit data to file ? Hadi Rezaee24-Apr-01 16:35 Hadi Rezaee 24-Apr-01 16:35  <<< In the name of GOD >>> Hi all. How can i save RichEdit data to file ? I wrote it, but it have errors ... static DOWORD CALLBACK MyStream(DWORD dwCookie, LPBYTE pbBuff, LONG cb, LONG *pcb) { CFile *pFile = (CFile*) dwCookie; pFile->Write(pbBuff, cb); *pcb = cb; return 0; } void CTestDlg::OnOK() { EDITSTREAM es; CFile file("c:\\test.txt", modeCreate); es.dwCooikie = (DWORD) &file; es.pfnCallback = MyStream; m_RichEdit.StreamOut(SF_RTF, es); } If possible write example about saving richedit data to file. 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 3D to 2D Transformation MikeG24-Apr-01 15:14 MikeG 24-Apr-01 15:14  I'm trying to convert a series of 3D points (XYZ) to a 2D (XY) surface. In my application a series of lines run along the axes (think of pipes fitted together with elbows, tees, and crosses), they are 90 deg to each other. I simply do the following to map my XYZ points to the YZ plane: xp = (z + x * COS_45); yp = (y + x * SIN_45); This is not quite right. When drawn on a metafile, lines in the Z direction run Parallel to bottom edge, they should actually be at 30 deg. I can see that I need to get an x and y added value from the z-component, however I haven't had much luck. A simple set of points: (0,0,0) (20,0,0) (20,20,0) (20,20,20) (40,20,20) Does anyone have the appropriate transformation/formula that I should use? Or good place to look? (I was trying to avoid matrices and doing some type of world to eye to screen transform - it seems it should be easier, since all my lines are at 90's) Thanks Mike Please Help, How do I Edit a Cell in CListCtrl 24-Apr-01 12:32 24-Apr-01 12:32  I have a 2 Column CListCtrl and I need to edit the text on the CListCtrl by DoubleClicking on the cell(in second column) Would some one give a hint on how to do this. Thanks Iraivan

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