C++ Code ConsoleApp -> WinForms

[xyfz]

Hey,

i want to implement some code from my console app to my win form.

dont know how to write that for loop in win forms though...

pls help, thanks.

in console app:

Code:

string pw;
char key;

cout << "Pw: ";
cin >> pw;

cout << "\nKey: ";
cin >> key;

for (int i = 0; i < pw.size(); i++)
{
pw[i] ^= key;
}

[Cromon]

well, if you use windows forms you are using C++/CLI if you wanna have C++-syntax. Technically IJW lets you mix managed and unmanaged code as it says: "It just works". But im not sure if the standard streams in cout and cin are correctly initialized. However, use Console::ReadLine/WriteLine for cin/cout and String^ instead of std::string.

Besides that: From your code i guess you are using-namespace-std'ing which is a bad thing. Explictely select objects from the namespace if you are to lazy writing 5 characters before the object. (like using std::string; using std::cout; etc)

[xyfz]

well, yeah. thanks for your answer. thats clear.


String ^pw = txtPw-> Text;
...
...
for (int i = 0; i < sizeof(pw); i++)
{
here is my problem
}



my only problem is the loop.

[Cromon]

for(int i = 0; i < pw->Length; ++i) {
    pw[i] ^= key;
}

should do the trick.

[xyfz]

Error 1 error C3070: 'System::String::default': property does not have a 'set' method


Googled it but dont know how to solve this error... Something about converting that string to char and then back to string again..?!

[Cromon]

Yea, obviously Strings in .NET are somehow immutable (a good thing!) so you just create a temporary string where you add the crypted values:

String^ pwCpy = gcnew String(L"");
for(int i = 0; i < pw->Length; ++i)
    pwCpy += pw[i] ^ key;

pw = pwCpy;

[xyfz]

as always, thank you very much for your help cromon!

it worked now, but its kinda not what i expected.
like in the console app e.g.

[Cromon]

Its not what you expected because you are no longer using plain C++ but managed (.NET) C++. Therefore a lot of things change.

[xyfz]

what would you suggest for putting my console app in a win forms app? is there any way i can achieve the same results like in my console app?

[Cromon]

Well, what do you mean with "the same result"? You get the same result in your forms application with the code above. Whats different for you?

[xyfz]

well, as you said before; plain c++ and managed c++.

i will take a look in IJW in managed c++. thanks for that.

[Rokz]

Why don't you get your basic Win32 GUI layout first make sure that's running. I'm pretty sure your for loop in fine, just remove your cout and cin and replace them with an edit box each. Once you click the "Login" button or whatever you have, call your for loop to check your entries and all the other stuff you'll need to add in.