如何检查光标的像素位置？

Question

在任何给定的应用程序上，有没有办法，也许在开发工具中我可以检查鼠标悬停的像素位置？

Answer 1

获取鼠标点击位置：

<!DOCTYPE html>
<html>
  
<head>
<title>Move to Click Position</title>
<style type="text/css">
body {
    background-color: #FFF;
    margin: 30px;
    margin-top: 10px;
}
#contentContainer {
    width: 550px;
    height: 350px;
    border: 5px black solid;
    overflow: hidden;
    background-color: #F2F2F2;
    cursor: pointer;
}
#thing {
    position: relative;
    left: 50px;
    top: 50px;
    transition: left .5s ease-in, top .5s ease-in;
}
</style>
</head>
 
<body>
<div id="contentContainer">
    <img id="thing" src="//www.kirupa.com/images/smiley_red.png">
</div>
 
<script src="//www.kirupa.com/prefixfree.min.js"></script>
<script>
var theThing = document.querySelector("#thing");
var container = document.querySelector("#contentContainer");
 
container.addEventListener("click", getClickPosition, false);
 
function getClickPosition(e) {
    var parentPosition = getPosition(e.currentTarget);
    var xPosition = e.clientX - parentPosition.x - (theThing.clientWidth / 2);
    var yPosition = e.clientY - parentPosition.y - (theThing.clientHeight / 2);
     
    theThing.style.left = xPosition + "px";
    theThing.style.top = yPosition + "px";
}
 
// Helper function to get an element's exact position
function getPosition(el) {
  var xPos = 0;
  var yPos = 0;
 
  while (el) {
    if (el.tagName == "BODY") {
      // deal with browser quirks with body/window/document and page scroll
      var xScroll = el.scrollLeft || document.documentElement.scrollLeft;
      var yScroll = el.scrollTop || document.documentElement.scrollTop;
 
      xPos += (el.offsetLeft - xScroll + el.clientLeft);
      yPos += (el.offsetTop - yScroll + el.clientTop);
    } else {
      // for all other non-BODY elements
      xPos += (el.offsetLeft - el.scrollLeft + el.clientLeft);
      yPos += (el.offsetTop - el.scrollTop + el.clientTop);
    }
 
    el = el.offsetParent;
  }
  return {
    x: xPos,
    y: yPos
  };
}
</script>
</body>
</html>

参考：MouseEvent clientX Property & Getting the Mouse Click Position

Answer 2

使用javascript获取光标位置。

document.addEventListener("mouseover", function( event ) {   
    console.log(event.screenX, event.screenY);
}, false);

如何检查光标的像素位置？

How can I check the pixel location of my cursor?

html

dom

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