C++ - Qt - Visual Studio 2010 - application with both gui and console

Question

If no arguments are given to the program it launches as a GUI application, if it is given args it is run through the command line. I was able to get visual studio to displa

Answer 1

Here's some code I had lying around that creates a console and attaches input and output to it:

#include 
#include 
#include 
#include 

void Console::createConsole()
{
    AllocConsole();
    SetConsoleTitle("Debug console");

    int hConHandle;
    long lStdHandle;

    FILE *fp;   // redirect unbuffered STDOUT to the console
    lStdHandle = (long)GetStdHandle(STD_OUTPUT_HANDLE);
    hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
    fp = _fdopen( hConHandle, "w" );
    *stdout = *fp;
    setvbuf( stdout, NULL, _IONBF, 0 ); 

    // redirect unbuffered STDIN to the console
    lStdHandle = (long)GetStdHandle(STD_INPUT_HANDLE);
    hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
    fp = _fdopen( hConHandle, "r" );
    *stdin = *fp;
    setvbuf( stdin, NULL, _IONBF, 0 );  

    // redirect unbuffered STDERR to the console
    lStdHandle = (long)GetStdHandle(STD_ERROR_HANDLE);
    hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
    fp = _fdopen( hConHandle, "w" );
    *stderr = *fp;
    setvbuf( stderr, NULL, _IONBF, 0 );
}

I haven't used Qt but you should be able to stick that somewhere and make it work.

Edit: added the headers needed