C / C++ / MFC

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Re: STL error syntax Jonathon Lockett8-Jul-01 13:33 Jonathon Lockett 8-Jul-01 13:33  Thanks Tim. I had a feeling it wasn't here, but I don't really *go* anywhere else. I thought of a magazine, but WDJ just ran a different plug in thing, so I thought I must be wrong. Christian on Jono's machine ;0) Jonathon Visual C++ Questions 8-Jul-01 2:02 8-Jul-01 2:02  Firstly, can I ask what are library files. I presume these are .lib files - and how do they differ from dll's? Are they still C++ compiled code.... Secondly, what form does MFC take. I presume we dont actually have the classes as source code on our hard disks. Is Mfc made up of DLL's, but if this is the case how come when debugging we can drop through into the source code. I presume the MFC DLL's havent just been released as a debug version for this reason surely the debug compilation is less efficient. Third, what are macro's? Are these written in C++? i know what the traditional macro is for instance in an excel spreadsheet or the Window 3.1 macro recorder which "records" a series of actions, is a C++ macro similar. I guess its used for automating things but I dont see how exactly. And thats it, thanks a lot...! Ben Re: Visual C++ Questions Christian Graus8-Jul-01 2:12 Christian Graus 8-Jul-01 2:12  A library file is compiled code, but it is not the same as a dll. A use for .lib files is to distribute a programming tool without the source - the code will compile with just the header, as long as the .lib file is provided for the compiler to find the code it needs to finish the job. GDI+ is distributed this way. Two - yes, you have the MFC source code in /vc98/mfc/src. Now you can't complain about that !! A lot of stuff to do with extending MFC would be nigh impossible if you couldn't bury your nose in the source code for a bit... A macro allows you to create a new command, for example min and max are macros, they are defined so that you can type min(x,y) and the code is replaced on the first pass of the compiler with something like: if (x InstallShield ... Hadi Rezaee8-Jul-01 1:11 Hadi Rezaee 8-Jul-01 1:11  Hi all, Can anyone tell me, how can i create setup disk for my program ??? (Please step by step) Because, i add my files to my project then i add my componets and ... then i compile my project, when i run setup, installshield don't copy my files to directory !!! I used of InstallShield 6.0 proffesional Please help me ... My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: InstallShield ... Christian Graus8-Jul-01 2:14 Christian Graus 8-Jul-01 2:14  I remember this - you need to effectively add things twice. The first time you create packages, the second you say which ones you want to use. It's dumb, and not clear at all. I prefer Setup Factory. Christian #include "std_disclaimer.h" People who love sausage and respect the law should never watch either one being made. The things that come to those who wait are usually the things left by those who got there first. Re: InstallShield ... Hadi Rezaee8-Jul-01 21:34 Hadi Rezaee 8-Jul-01 21:34  Hi, Do you know how can i register an ActiveX or dll file by InstallShield ??? My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: InstallShield ... Christian Graus8-Jul-01 22:30 Christian Graus 8-Jul-01 22:30  Sorry, I don't know. Christian #include "std_disclaimer.h" People who love sausage and respect the law should never watch either one being made. The things that come to those who wait are usually the things left by those who got there first. Re: InstallShield ... Derek Waters9-Jul-01 15:38 Derek Waters 9-Jul-01 15:38  To register files in InstallShield, create a File Group just for self-registering files: 1) On the File Groups tab, right-click and select "New File Group". Give the group a name. 2) Put all of your self-registering files into this file group (I find that dragging them from Windows Explorer is easiest). 3) Click on the new file group in the left hand tree view. The right hand side of the Installshield window should show you some settings for the file group. 4) One of the settings is called "Self-registered". Double click on it and a dialog will appear where you can select to make them self-registering. Hope this helps, let me know if you have any problems. Derek Waters derek@lj-oz.com Re: InstallShield ... Hadi Rezaee9-Jul-01 21:35 Hadi Rezaee 9-Jul-01 21:35  Hi Derek, Thanks aloooot for your reply. I have other question, in File Group Tab i can see other sections ... Shared DLLs and Program DLLs, can you explain for me about thease sections ... Thanks again. My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: InstallShield ... Derek Waters10-Jul-01 13:28 Derek Waters 10-Jul-01 13:28  Yep, I think those sections are created by default if you use the Installation Wizard to create an Install. Basically, Program DLLs are any DLLs that your program uses. Typically they will be placed in "INSTALLDIR" which is the directory that the user chooses to install your application into. Shared DLLs tends to be used to install newer version of system DLLs, for example, mfc42.dll. These are typically installed in "SYSTEMDIR" which is C:\Windows\System (Win 95/98/Me) or C:\Winnt\System32 (NT/2k/XP?). You need to be careful with these to make sure you don't put some old version of the DLL over some newer version. Usually, files in this group are only updated if you provide a higher version and/or more recent file. I think that this is all set up by default when you use the Installation Wizard. Hope this helps! Derek Waters derek@lj-oz.com Re: InstallShield ... Hadi Rezaee10-Jul-01 23:55 Hadi Rezaee 10-Jul-01 23:55  Hi Derek, Your reply was very very perfect for me, If i have any other question, i'll ask of you ... Thanks again ... Best Regards, My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie DataGrid or FlexGrid ... Hadi Rezaee8-Jul-01 0:54 Hadi Rezaee 8-Jul-01 0:54  Hi all, I want to know how can i link my DAO database to the DataGrid or FlexGrid ??? My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: DataGrid or FlexGrid ... Christian Graus8-Jul-01 2:16 Christian Graus 8-Jul-01 2:16  I think you'll find you need to traverse the database and put the data in to the grid. We used flex grid and had to fill the grid in another thread during startup/user registration, because it was so slow otherwise. Christian #include "std_disclaimer.h" People who love sausage and respect the law should never watch either one being made. The things that come to those who wait are usually the things left by those who got there first. Re: DataGrid or FlexGrid ... Hadi Rezaee8-Jul-01 8:13 Hadi Rezaee 8-Jul-01 8:13  Good, so i want to use of FlexGrid ... but how ??? I want to see my records in FlexGrid, but how ? Please help me ... My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: DataGrid or FlexGrid ... Christian Graus8-Jul-01 12:38 Christian Graus 8-Jul-01 12:38  I used a formview and put my flexgrid on it ( actually I had three views so three grids and just changed their Z order to select the one visible ). I can't remember the commands to set the number of columns, etc. but if you've put the flexgrid into your project there will be a class there that lists them, stuff like SetColumn is pretty obvious. I have my old source code at home, I'd be happy to dig it up so I can give some more specific answers. I'll try to do that tonight. Christian #include "std_disclaimer.h" People who love sausage and respect the law should never watch either one being made. The things that come to those who wait are usually the things left by those who got there first. Re: DataGrid or FlexGrid ... Hadi Rezaee8-Jul-01 21:25 Hadi Rezaee 8-Jul-01 21:25  Hi again, Can you send your source code for me ? that was about indicate records in a FlexGrid ? Can you ? My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: DataGrid or FlexGrid ... Christian Graus8-Jul-01 22:38 Christian Graus 8-Jul-01 22:38  I'll try to dig up a code backup CD and see what I can find for you. Christian #include "std_disclaimer.h" People who love sausage and respect the law should never watch either one being made. The things that come to those who wait are usually the things left by those who got there first. How to like XP shutdown to transfer color to gray inforix8-Jul-01 0:28 inforix 8-Jul-01 0:28  Anyone how to transfer color to gray like XP shutdown interface. However, only the window is color, others is gray. What I needed maybe you have, so let's help each other. Re: How to like XP shutdown to transfer color to gray Christian Graus8-Jul-01 2:06 Christian Graus 8-Jul-01 2:06  No need to barter To make colour into gray scale, you need to take the red, green abd blue values ( actually windows uses BGR ) and then use the formula x = .299 * red + .587 * green + .114 * blue to get the value to pass back in to all three values ( gray pixels having equal values in all three channels ). You can take an average of the three, but that doesn't take in to account the way the human eye percieves colour. Now, to change the whole screen to gray ( I assume that's what XP does, hey, maybe you DO have something I want....), you need to grab the screen ( which is easy - CWindowDC dc(NULL); gives you a DC to the screen, you can Blt off it ). Then you need to create a DIBSection the same size ( because you can get direct access to the bits ), copy the CWindowDC onto it ( it needs to be selected in to a DC, obviously ) and traverse the bits using this formula. Then copy the DIBSection back over the WindowDC. If you're doing it IN XP, or don't mind depending on the GDI+ dll, then you'll find the job easier because you can use a GDI+ bitmap to traverse the bits. I'll be writing a tutorial on how to do this shortly ( i.e. when I find time ). Christian #include "std_disclaimer.h" People who love sausage and respect the law should never watch either one being made. The things that come to those who wait are usually the things left by those who got there first. Re: How to like XP shutdown to transfer color to gray inforix9-Jul-01 1:55 inforix 9-Jul-01 1:55  Is there any sample? What I needed maybe you have, so let's help each other. Re: How to like XP shutdown to transfer color to gray Christian Graus9-Jul-01 2:05 Christian Graus 9-Jul-01 2:05  I have a sample around here somewhere that shows how to use a DIBSection to get access to the bits of a bitmap, but it's going to appear in next months Windows Developers Journal, so I'm not sure if I'm allowed to post it. What part of the explanation I gave do you need help with ? To get access to the screen bitmap, you'd do something like: CWindowDC window(NULL); CDC dc(NULL); // Does two different things, NULL in the first case creates a DC of the screen, the second creates one *compatible* with the screen. dc.SelectObject(dib); // Assumes it's already created to the screen size dc.BitBlt(0,0, width, height, &window, 0, 0); // viola. You might actually find if you download Paintlib (ww.paintlib.de ) it has stacks of examples of direct pixel access, and a nice wrapper for DIBsection. Also, if you want it, I've written a Targa saver, and filters including a 3x3 spatial with smooth, sharpen, emboss, etc., and gamma, colour, and I'm sure others, but I can't recall. Nothing too cool, no hot wax or swirl ( yet... ) LMK if you need more help, but that should get you started. Just post some code to show me where you get stuck. Christian #include "std_disclaimer.h" People who love sausage and respect the law should never watch either one being made. The things that come to those who wait are usually the things left by those who got there first. Re: How to like XP shutdown to transfer color to gray inforix9-Jul-01 4:03 inforix 9-Jul-01 4:03  I wrote the following code, but it give me a red screen, everything become red-like, not gray. CWindowDC dc(NULL); for ( int i=0; i<1024; i++) for ( int j=0; j<768; j++) { COLORREF clr = dc.GetPixel(i, j); int R = GetRValue(clr); int G = GetGValue(clr); int B = GetBValue(clr); clr = (54 * R + 183 * G + 19 * B)/256; //clr = 0.299 * B + 0.587 * G + 0.114 * R; //.299 * red + .587 * green + .114 * blue dc.SetPixel(i, j, clr); } What I needed maybe you have, so let's help each other. Re: How to like XP shutdown to transfer color to gray 9-Jul-01 4:41 9-Jul-01 4:41  You need to write something like this: int newclr = (54 * R + 183 * G + 19 * B)/256; clr = RGB(newclr, newclr, newclr) to put data in all three channels. Re: How to like XP shutdown to transfer color to gray inforix9-Jul-01 6:46 inforix 9-Jul-01 6:46  Thanks, I have correctted it. But there still has a problem: some area also is colourful, not gray, such as title bar, part of task bar. What I needed maybe you have, so let's help each other. Re: How to like XP shutdown to transfer color to gray Christian Graus9-Jul-01 12:08 Christian Graus 9-Jul-01 12:08  Please stop saying What I needed maybe you have, so let's help each other it sounds so mercenary. I help people to help them, I'm sure others here do the same and it is a given that you will probably help me if you can later on. Anyhow, these areas are drawn by windows, you won't be able to draw on them using this method. The mouse pointer is the same. What is happen is that GDI allows you to draw out of bounds without a crash it just ignores the call. BTW you should add code to check the screen size to your loop - use GetSystemMetrics to do that. Christian #include "std_disclaimer.h" People who love sausage and respect the law should never watch either one being made. The things that come to those who wait are usually the things left by those who got there first.

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