c++ - RAWINPUT.Keyboard: How to detect arrow keys when NUMLOCK=ON?

Question

When NUMLOCK=ON then

Key ARROW_UP pressed:

data.keyboard.MakeCode = 42;
data.keyboard.VKey = 255;
data.keyboard.Flags = 2;
data.keyboard.Message = 256 (WM_KEYDOWN)

Key ARROW_DOWN pressed:

data.keyboard.MakeCode = 42;
data.keyboard.VKey = 255;
data.keyboard.Flags = 2;
data.keyboard.Message = 256 (WM_KEYDOWN)

Key ARROW_LEFT pressed:

data.keyboard.MakeCode = 42;
data.keyboard.VKey = 255;
data.keyboard.Flags = 2;
data.keyboard.Message = 256 (WM_KEYDOWN)

Key ARROW_RIGHT pressed:

data.keyboard.MakeCode = 42;
data.keyboard.VKey = 255;
data.keyboard.Flags = 2;
data.keyboard.Message = 256 (WM_KEYDOWN)

How to detect arrow keys when NUMLOCK=ON?

• When NUMLOCK=OFF then all working well;
• DirectInput (from DirectX 8.0) works well in both cases;

question from:https://stackoverflow.com/questions/65848114/rawinput-keyboard-how-to-detect-arrow-keys-when-numlock-on

Answer 1

Add flag: RIDEV_NOLEGACY and filter messages where VKey == 255