How to get Mouse Position as pixel number in the text boxes

Question

I am working on real-time video processing project.

During the real-time video i need to get mouse position when left clicked. To do that i have one button to send mouse position to text boxes. To see position of the cursor, i have two text boxes named as txt4 and txt5 for X and Y position seperately.

I have written the given code as shown the below. When i click the button it shows the current postion of the mouse (actually it is the position of the button) but then when i do left click position of the mouse is not shown in the text boxes. Position is shown when i press "Enter" while button is clicked.

What is wrong? and How can i correct it?

    private void btnCursor_Click(object sender, EventArgs e)
    {
        if (device.IsRunning)
        {
            
            this.Cursor = new Cursor(Cursor.Current.Handle);
            txt4.Text = string.Format("x={0:0000}", Cursor.Position.X);
            txt5.Text = string.Format("y={0:0000}", Cursor.Position.Y);
        }
    }
    private void panel1_MouseMove(object sender, MouseEventArgs e)
    {
        if (e.Click>0)
        {
            txt4.Text = MousePosition.X.ToString();
            txt5.Text = MousePosition.Y.ToString();
        }
    }

I tried to get mouse position when i do left click.

What i get is mouse position when i pressed "Enter" instead of left clicked.

I have error in line "if(e.Click>0)".