Check whether key is pressed down in Windows console [duplicate]

This question already has answers here: Closed 11 years ago.

Possible Duplicate:

C++ console keyboard events

I want a Windows console program to do something if a certain key is pressed down, something like

while(1)
{
    ....
    if(the key 'o' is pressed down)
      ....
}

but I don't know what to put in th开发者_如何学Ce if statement. How do I check if the key 'o' is pressed down?

I'm using Windows 7 64-bit and Visual Studio Professional 2008.

---

You can use the std::cin.get() or you can use the windows.h GetAsyncKeyState, depending on what exactly you want to do.

If you want lower level stuff, look into hooks and events from the WinAPI.

---

Rather than busy-polling for a keypress, you should register for key events in your application (assuming this is a Windows GUI app), and check for the keys you're interested in.

If you are actually making a console app, see here: C++ console keyboard events