When I check where the original project DSP file was I got SLN and DSW and some other junk there.
So you tried to update the project to a newer version of the IDE; again which one?
it does the conversion half baked and automatically.
That has never happened in my experience. Did you keep backups of your original files?
I did not try to run the sln file.
.SLN files are merely text files containing XML which describes the names and locations of the projects witihn a solution. It is used by Visual Studio to access the project files, and hence the source files and build rules.
Understanding the structiure of Solution and Project files is important when using any version of Visual C++ or Visual Studio. MSDN contains information about them, and Microsoft has a forum dedicated to the subject.
Fortunately I archive my project after each major task is completed. As far as I know only VS / VC6.0 has DSP project files, but I may be wrong. I guess my the main question remains - why does my VC IDE bombs out when I have ANY VS 20xx installed and I am not using them.
Thanks for all you comments.
why does my VC IDE bombs out when I have ANY VS 20xx installed and I am not using them.
Sorry, no idea. As I said above, I have done this myself without problems in the past. I can only assume that you tried opening one of the VC6 solutions in a later Visual Studio which converted or somehow corrupted one of the project files.
The problem is obviously that you converted the old workspace into a new one (.dsw to .sln). After that you can't use it anymore with VS 6. Your best option is to revert to the files you had before conversion. If you don't have a backup you can either try to open the .dsw file (that contains the old workspace information for VS 6) or you may try to recreate all the projects, add the source files and hope that you get the project settings correctly.
I have installed VS 6 and some newer ones (up to VS 2010) in parallel on my machine. Usually this gives no problem. The key rule is: Always keep the projects separate, never open a project in anover VS version than it is intended for.
VS6 also used x.sln files but they were for web projects (and maybe something else?). If you end up with a x.dsp and x.sln file with VS6 then something is confused. I am doubtful that it will work. You probably want to delete the x.sln file, go to VS6 and select "Start a new project" and add your existing x.dsp to it. This should create an x.dsw file for you. If it creates or tries to use the x.sln file then something is wrong...
unfortunately I just deleted the sln and it did not help.
I have no VS greater that 6 on my box, so everything works in VS 6.I may try adding VS 2008 again to test the CMAke.
Many thanks for your input, appreciate it.
This also partialy explains why I can start a new project from dsw file but I cannot add DSW into existing project - IDE complains.
I was wondering what advice can you give on how to create a data/business model in C++. I mean, when working with C# I usually have no problems, simply follow .NET's guidelines, but it seems there aren't guidelines in C++ on this regard. Is there any example you'd like to share?
I'm thinking common scenarios like a sales system (product, warehouse, pricing, purchase order) or a search inverted index (term, documents, posting, posting lists, dictionaries).
You could overwrite the OnChange Handler (I think it was EN_CHANGED or something like that) and manually get the text, check for any non-digit and remove it. Then set the corrected Text with SetWindowText(), or ReplaceSel().
There are however several pitfalls you need to avoid. First, setting the text programmatically also calls the event handler, and you need some status variable to prevent "recursive" calls.
Second, You need to take the cursor position into account. When you call SetWindowText(), usually the whole edit control content is selected. You could set the cursor position to the end with SetSel() (IIRC you need two calls, one to mark everything and at the same time set the cursor to the end, a second one to mark nothing and leave the cursor where it is.) Since the user may have entered something in the middle you may want to get the cursor position before changing anything (with GetSel()) and set it back to that position later.
I usually avoided these issues by letting the user enter the wrong values and checking them when the control lost focus, unless where was a strong argument against this approach.
I'm not sure where should I post this but it's part of the code in Clips (C Language Integrated Production System ) environment which is software tool for building expert systems.
please let me know where should I post it?