How do I check if a Key is pressed on C++

Question

How could I possibly check if a Key is pressed on Windows?

Answer 1

As mentioned by others there's no cross platform way to do this, but on Windows you can do it like this:

The Code below checks if the key 'A' is down.

if(GetKeyState('A') & 0x8000/*Check if high-order bit is set (1 << 15)*/) {     // Do stuff } 

In case of shift or similar you will need to pass one of these: https://msdn.microsoft.com/de-de/library/windows/desktop/dd375731(v=vs.85).aspx

if(GetKeyState(VK_SHIFT) & 0x8000) {     // Shift down } 

The low-order bit indicates if key is toggled.

SHORT keyState = GetKeyState(VK_CAPITAL/*(caps lock)*/); bool isToggled = keyState & 1; bool isDown = keyState & 0x8000; 

Oh and also don't forget to

#include <Windows.h>