How can I see cout output in a non-console application?

Question

It seems rather tedious to output to debug window. Where can I find cout output if I am writing a non-console information ?

Like:

double          


        

Answer 1

SOLUTION: This answer solves the question and allows you to redirect console output to the Visual Studio Output window. First we need a class that overrides the default cout string stream:

class dbg_stream_for_cout
    : public std::stringbuf
{
public:
    ~dbg_stream_for_cout() { sync(); }
    int sync()
    {
        ::OutputDebugStringA(str().c_str());
        str(std::string()); // Clear the string buffer
        return 0;
    }
};
dbg_stream_for_cout g_DebugStreamFor_cout;

Then, somewhere you want to "activate" writing to the VS output window:

std::cout.rdbuf(&g_DebugStreamFor_cout); // Redirect std::cout to OutputDebugString!