宏代码中如何打开自定义对话框？

function main(simpleReport, simpleReportContext) {
    var dialogFactory = jsloader.resolve("freequery.dialog.dialogFactory");
    var dialogConfig = {
        title: "test open report",
        size: dialogFactory.size.LARGE,
        dialogType: "modeless",
        fullName: "freequery.dialog.BaseDialogEx",
        closeBeforeCallback: true
    };
    var data = {};
    dialogFactory.showDialog(dialogConfig, data);
    setTimeout(function() {
        openReport();
    }, 500);
}

function openReport() {
    // 替换成你的目标资源的url
    var url = 'http://10.10.203.190:8080/smartbi/vision/openresource.jsp?resid=I8a8a4b3e0172541e541e352701725f0f8dec5462&refresh=true&user=admin&password=admin';
    var domutils = jsloader.resolve('freequery.lang.domutils');
    var elem = window.dialog.dialogBody;
    var btnOK = window.dialog.btnOK;
    var btnCancel = window.dialog.btnCancel;
    btnOK.style.display = 'none';
    btnCancel.value = '关闭(C)';
    elem.innerHTML = '<iframe src="' + url + '" width="100%" height="100%" border="0" frameSpacing="0" frameBorder="0"></iframe>';

}