Thread: Downloading from specified URL

Hi everyone,

I am trying to make a program which will allow you to input a number and then it will add that number into the URL. Here is some of the code:

Code:

HRESULT hr = URLDownloadToFile( NULL, L"http://www.my-site.com/number.png", L"image.bmp", 0, NULL );

Basically, I am allowing the user to store a number in a variable, and then the program will add that number onto the end of the URL so that an image with the name 'number.png' (where 'number' is the value they enter) will download. Long story short - how do you allow the user to change the URL that it downloads from?

Thanks.

Thanks for the response - I tried to change it to that, but I get this:

Code:

error C2039: 'c_str' : is not a member of 'std::basic_stringstream<_Elem,_Traits,_Alloc>'
        with
        [
            _Elem=wchar_t,
            _Traits=std::char_traits<wchar_t>,
            _Alloc=std::allocator<wchar_t>
        ]

Any ideas what I'm doing wrong? Thanks!

Try

Code:

HRESULT hr = URLDownloadToFile( NULL, fn.str().c_str(), L"image.bmp", 0, NULL );

the str() retrieves the C++ string from the stringstream, the c_str() converts that C++ string to a const char * -- a const C-string -- which is what URLDownloadToFile wants.