![]() Only by clicking again will the drawing cease. Once the user clicks the mouse, the user is allowed to drag the mouse wherever they want within the canvas and a line will be drawn from where they started moving the mouse to where the mouse stopped. get an alert with object Object and still cant get the x or y mouse coordinates this is my code. It's used when you're not sure if x has been declared. I have a small JS application that allows a user, after clicking on a canvas, to draw a picture. This is trivial to accomplish if you only need to support specific browsers, but there are differences between f.ex. (I’m using jQuery in order to simplify cross-browser compatibility, but if you want to use raw javascript a quick Google will get that too). #Javascript mouse coordinates canvas how toThis is called the canvas’s offset, and here’s how to get the offset. You don't need to use typeof x != 'undefined' here. Easiest way is probably to add a onmousemove event listener to the canvas element, and then you can get the coordinates relative to the canvas from the event itself. You need to get the mouse position relative to the canvas To do that you need to know the X/Y position of the canvas on the page. The JavaScript script presented in this page can be used to Get Mouse coordinates inside a HTML element, usually a Div or an Image. , and then inside the if (draw) you have a context =. You have, on your fourth line, in the global scope a var context =. Question: How do I determine the x, y values when the mouse is clicked on the
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