1.打开对话框

https://blog.csdn.net/qq_29069649/article/details/136446193
核心API dialog.showOpenDialogSync({参数s})

// 订阅打开文件对话框的主题
ipcMain.on('openDialog',(e,arg) => {
    const res = dialog.showOpenDialogSync({
        title: "自定义标题",
        buttonLabel: "按钮",
        properties:["openFile"]
    });
    console.log(res,e);
    e.sender.send("openFile1",res)
})

2.保存对话框

https://www.cnblogs.com/handsomeziff/p/16977804.html

dialog.showSaveDialog({});

3.消息对话框

showMessageBox(options)

创建一个报错的error对话框

ipcMain.on('showMessage',(e,arg) => {
    const res = dialog.showMessageBox({
        title: "自定义标题",
        message: arg,
        type: 'error'
    });
})

4.消息对话框的图标&类型

icon自定义图标

const res = dialog.showMessageBox({
    title: "自定义标题",
    message: arg,
    buttons:["1","2","3"],
    type: 'error',
    icon: 'app.ico',
});

对话框的类型 type = {
信息对话框 info
错误对话框 error
询问对话框 question
警告对话框 warning
}

5.为对话框添加多个按钮

判断点击按钮的事件

buttons:["1","2","3"],

 //返回的index是点击的按钮顺序下标
ipcMain.on('showMessage',(e,arg) => {
    const res = dialog.showMessageBoxSync({
        title: "自定义标题",
        message: arg,
        buttons:["按钮1","2","3"],
        type: 'error',
        icon: 'app.ico',
    });
    console.log(res);
})

6.错误对话框

showErrorBox

ipcMain.on('showErrorBox',(e,arg) => {
    const res = dialog.showErrorBox("错误","这是一个错误对话框");
    console.log(res);
})

7.使用HTML5 API 创建子窗口

https://blog.csdn.net/weixin_46098577/article/details/130925130
window.open(url[,title][,attributes]) 方法
url: 要打开页面的链接（可以是本地的链接，也可以是Web链接）
title：设置要打开页面的标题，如果页面已经设置了标题，那么这个参数将会被忽略
attributes：可以设置与窗口相关的一些属性，例如：窗口的宽度和高度
返回值：BrowserWindowProxy-可以认为是BrowserWindow的代理类
默认宽高和父窗口一样

8.控制窗口

获取窗口的焦点 focus

function onClick_Focus () {
    if(win != undefined) {
        console.log(win);
        win.focus()
    }
}

窗口失去焦点 blur

function onClick_Blur () {
    if(win != undefined) {
        win.blur()
    }
}

关闭窗口 close

function onClick_Close() {
    if(win != undefined) {
        if(win.closed) {
            alert("子窗口已经关闭，不用重复关闭")
            return
        }
        win.close()
    }   
}

显示打印对话框 print

const onClick_PrintDialog = () => {
    if(win != undefined) {
        win.print()
    }
}