Question

Using GetKeyState, I can do some task when a key is pressed. However, if I have if (GetKeyState(VK_UP) & 0x80), it returns true the entire time the key is being held.

How do I handle this if I just want this to be true the exact moment the key is pressed (so the contents of the if statement don’t run several times)?

Answer 1

You can use a bool flag = false and use it like this:

if((GetKeyState(VK_UP)&0x80) && ! flag)
{
  flag = true;
}

else if((GetKeyState(VK_DOWN)&0x80) &&  flag)
{
  flag = false;
}

if(flag) //key is just pressed
{
  //TODO: Your handling here
}