如何在不使用 TextBox 的情况下检测是否按下了某个键？

Question

I have looked on Stack Overflow and Google but I have yet to find an answer to my question. I want to detect when a key is pressed without the need of a text box.

Answer 1

Override OnKeyPress main Form , this will catch the key presses

Winforms:

    protected override void OnKeyPress(KeyPressEventArgs e)
    {
        base.OnKeyPress(e);
    }

WPF: (will have to use OnKeyDown or OnKeyUp

    protected override void OnKeyDown(KeyEventArgs e)
    {
        base.OnKeyDown(e);
    }

Answer 2

All controls (including forms) have the KeyPress , KeyDown and KeyUp events that you may use.

• KeyPress event
• KeyDown event
• KeyUp event

And there are corresponding OnKeyPress , OnKeyDown and OnKeyUp methods that you can override in your own controls.