Hello world! I'm talking about the mouse move event in C#. I've started a new project and I've added a label. And in the properties window I can select the form or the label here, instead of clicking on it. So I'm going to name the label LBL Info, and right at the start I'm going to have no text in there. And then, I'm going to select the form. And in the properties window I'm going to click on this lightning bolt, and that will show me events that I could do. If I double-click on the form it's going to open the form load event. But for this application I want a mouse move event. So I'm going to double-click on that and it opens up my code window for the mouse move event. I'm going to say LBL info dot text equals... notice we have this argument "e" and I'm going to take e.X - the X position dot string plus, a comma, plus, concatenate, e dot y. dot to string. ToString is a function, let's put parentheses here. And when we run our program You're going to see the position: the x position is the distance from the left so that's zero all the way on the left, all the way to the width of the form on the right. And the Y value is from zero up at the top going down to the height of the form down here. So that would be 0, 0 And that's it!