LODOP JS 获取电脑打印机，并指定打印机打印（转备用）

//获取本地电脑可选的打印机(驱动)，并默认选择cookie中存储的打印机
function printerList() {
    //读cookie中存储已经选择的打印机：
    var arrStr = document.cookie.split("; ");
    var strPName;
    for (var i = 0; i < arrStr.length; i++) {
        var temp = arrStr[i].split("=");
        if (temp[0] == "printn" && unescape(temp[1]) != "") {
            LODOP.SET_PRINTER_INDEX(unescape(temp[1]));
            strPName = LODOP.GET_PRINTER_NAME(unescape(temp[1]));
        }
    }
    var count = LODOP.GET_PRINTER_COUNT();
    $("#printer").html("");
    for (var i = 0; i < count; i++) {
        //根据设备序号获取设备名
        var msg = LODOP.GET_PRINTER_NAME(i);
        //将设备名添加到select块，并添加相应value值
        if (msg == strPName) {
            $("#printer").append("<option value='" + i + "' selected>" + msg + "</option>");
        } else {
            $("#printer").append("<option value='" + i + "'>" + msg + "</option>");
        }
    }
}
 
//选择打印机后存储到cookie
$("#printer").change(function () {
    var Days = 300;
    var exp = new Date();
    //设置cookie过期时间
    exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);
    document.cookie = "printn=" + $("#printer").val() + ";expires=" + exp.toGMTString();
});
 
window.onload = function () {
    printerList();
};

//获取选择的打印机

function getPrinter() {
    var arrStr = document.cookie.split("; ");
    for (var i = 0; i < arrStr.length; i++) {
        var temp = arrStr[i].split("=");
        if (temp[0] == "printn" && unescape(temp[1]) != "") {
            indexPrinter = unescape(temp[1]);
            //指定打印机
            LODOP.SET_PRINTER_INDEX(indexPrinter);
        }
    }
}

效果图：