No, after pressing ctrl +s I worked for a little while and then power was cut. Thanks.
I also check that folder. There is My_First_Calculator with cpp extension but not any other extensions.
Maybe it's gone!
Hello, this is ProgramBase2 (I forgot my login credentials for my previous account) - sorry.
Can anyone help me out with this problem? I forgot to mention what I'm looking for.
Can anyone please direct me to a tutorial or a book that instructs how to achieve the goals I posted?
Please do not direct me to a existing code project, I am not interested in the finished product. I am interested in how the person got to the finished product.
Also, please do not direct me to a basic tutorial. I am looking for something advanced (maybe solemn done in Qt before). I've seen it work in other MDI programs, so I know it can be done.
Thanks again (I'll remember my credentials this time).
"1000x" thing may only be relevant for building scenes out of very many QWidgets. In this case QGraphicsView/QGraphicsScene may be orders of magnitude more efficient.
Yea I did make that assumption that he was building a complex scene since I have never had a performance issue with QPainter before, even in mildly complex scenes. Also 1000x was definitely hyperbole as it wouldn't realistically be anywhere near that. ;)
The binaries may scan fine but the behavior of the program could be the trigger. If the program does things that are suspicious it will get more attention (especially a new program).
Just to make sure I would build Qt from source or only use binaries from a trusted source with a checksum hash that you can verify.
This is a big concern I have when moving between Windows computers. I have not had problems but I always keep in the back of my mind that everything might be deleted in the blink of an eye and snowball into a bad day - bleh!
@VRonin you probably need a software copyright layer to answer that :)
My totally layman understanding (and now I take my work hat off, as this is code owned by my employer) is that in Finland (and probably most of the EU) you would be safe if the code you are copying is practically the only way to do it, and it is so simple that it is the only reasonable solution to your problem, and that the part you are copying is short enough that could simply re-write it anytime, and you aren't copy pasting anything else from the same work.
The problem is that everything I'm saying above is way too hand-wavy to be of any use. It's always a case-by-case situation.
Linking has nothing to do with it. It is a question of does the copy-pasted material automatically bring it's license with it to your code.
If you wanted to be utterly safe, you would ask your friend, who has not seen the Qt code to implement a paintEvent once, and then use that. He probably would come up with about the same seven to ten lines of code. (clean room is the only way to be totally sure)
@Ahti do you have your own public server? If so, then perhaps the most easy way would be to code a simple http API that your app (with somekind of authentication obviously) can do a simple http POST to, and that thing then sends the e-mail to you.
(I'm not a web developer, but work with them, so take this as an opinion, not proper advice)
On the other hand, if you already have a web server in C++, extending that with web sockets shouldn't be too hard with a suitable library. That just leaves the browser end.
So it comes down to the usual two questions:
What language do you want to do this in (especially if it is not work, where you might have the language selected for you)
Are you happy supporting your selection for the lifetime of the project
Here's the solution I found myself...
When using qt5.6.0 msvc2015_64 bit. You must also install visual studio 2015 to make it work... while installing visual 2015 make sure that C++ program is included in the installation in order fpr Qt to detect the compiler.
For being hacker proof, its very important you dont store anything
clearly in the exe file.
That goes for the variables too.
When u read into memory, make sure its not easy to locate
and read. ( in mem)
so do not store passwords or user names as clean text inside program.
all must be encrypted.
That will only keep noob hackers out.
Anyone pro, will most likely be able to get access if
unlimited access to app and data.
If you are thinking of symbols in terms of binaries (dlls), the right way of tracking dependencies is analysis of binaries. You need to get lists of public symbols from all libraries linked to your application, demangle them, and then you will be able to check which of them are used in each of your source files.
If you wonder which tools to use for this task, I only know appropriate tools for ELF, not for Windows binaries
The thing is when I do same with for example PDO in PHP it gives me a warning
Qt's SQL driver should probably throw a warning at you as well, and if it doesn't it may be a minor bug. But in any case this doesn't elevate to an error, much less an SQL error, at least in my opinion. You could try searching in the bugtracker if something's reported about this.
So for me it looks like that QSqlQuery only looks if the number of bound parameters is correct but does not care about their names.
Without looking at the source of the SQL driver, I can't tell if that's the case, and you didn't mention what database you're using as well.
Actually, my idea is to have a storage of different wooden blocks in user interface and drag them one-by-one to working area to design a house model and then generate a txt file containing the stream of the coordinates (including some other attributes like color, shape) of building blocks.
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