ie中自动识别单屏与双屏(js)

<!DOCTYPE html>

<html>

<head>

    <meta name="viewport" content="width=device-width" />

    <title>Line</title>

    <script type="text/javascript">

        window.onload = function () {

            document.getElementById("btnZX").onclick = function () {

                var locator = new ActiveXObject("WbemScripting.SWbemLocator");

                var service = locator.ConnectServer(".");

                //显示器

                var xsq = new Enumerator(service.ExecQuery("select * from Win32_DesktopMonitor"));

                //得到所有显示器的分辨率

                //如果有2个显示器，则有2对分辨率；反之，则为1个显示器

                var xsq1Width;

                var xsq1Height;

                var xsq2Width;

                var xsq2Height;

                var i = 1;

                for (; !xsq.atEnd() ; xsq.moveNext()) {

                    if (i == 1) {

                        xsq1Width = xsq.item().ScreenWidth;

                        xsq1Height = xsq.item().ScreenHeight;

                    } else if (i == 2) {

                        xsq2Width = xsq.item().ScreenWidth;

                        xsq2Height = xsq.item().ScreenHeight;

                    }

                    i++;

                }

                //判断单双屏

                if ((xsq1Width == null && xsq1Height == null) || (xsq2Width == null && xsq2Height == null)) {

                    window.open("", "", "top=0,left=0,alwaysRaised=no,fullscreen=yes");

                }

                else {

                    //显示器1是主屏

                    if (window.screen.width == xsq1Width && window.screen.height == xsq1Height) {

                        if (window.screenLeft >= 0 && window.screenLeft < xsq1Width) {

                            window.open("", "", "top=0,left=" + xsq1Width + ",width=" + (xsq2Width - 20) + ",height=" + xsq2Height + "");

                        }

                        if (window.screenLeft >= xsq1Width && window.screenLeft < (xsq1Width + xsq2Width)) {

                            //从右向左跳

                            window.open("", "", "top=0,left=0,width=" + (xsq1Width - 20) + ",height=" + xsq1Height + "");

                        }

                    }

                    //显示器2是主屏

                    if (window.screen.width == xsq2Width && window.screen.height == xsq2Height) {

                        //alert("显示器2是主屏");

                        if (window.screenLeft >= 0 && window.screenLeft < xsq2Width) {

                            window.open("", "", "top=0,left=0,width=" + (xsq1Width - 20) + ",height=" + xsq1Height + "");

                        }

                        if (window.screenLeft >= (-xsq1Width) && window.screenLeft < 0) {

                            //从左向右跳

                            var objWin = window.open("", "", "top=0,left=0,width=" + (xsq2Width - 20) + ",height=" + xsq2Height + "");

                        }

                    }

                }

            }

        }

    </script>

</head>

<body>

    <div>

        <button type="button" id="btnZX">专线</button>

    </div>

</body>

</html>
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ie中自动识别单屏与双屏(js)

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