I need to highlight the current key pressed in my C# application. To get the keyboard keys code during keyDown and keyUp events i tried returning the keycodes as

protected override void OnKeyDown(KeyEventArgs keyEvent) 
    // Gets the key code 
    lblKeyCode.Text = "KeyCode: " + keyEvent.KeyCode.ToString(); 

Other way i tried was to check if each key that i need is pressed

namespace test
    public partial class Form1 : Form
        public Form1()
            // Create a TextBox control.
            Button enterBtn = new Button();
            enterBtn.KeyPress += new KeyPressEventHandler(keypressed);

         private void keypressed(Object o, KeyPressEventArgs e)
             // The keypressed method uses the KeyChar property to check 
             // whether the ENTER key is pressed. 
             // If the ENTER key is pressed, the Handled property is set to true, 
             // to indicate the event is handled.
             if (e.KeyChar == (char)Keys.Return)
                 enterBtn.BackColor = Color.Purple;
                 e.Handled = true;

but still the button on Form1 did not highlighted. help please :(

Set Form's KeyPreview property to True. Otherwise your handler won't be called. Then you can use KeyPress or KeyDown event.

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