# wx.loadBuiltInFontFace(Object object)

> 基础库 3.7.9 开始支持，低版本需做[兼容处理](1003706)。

> __以 [Promise 风格](/miniprogram/dev/framework/app-service/api.md#异步-API-返回-Promise) 调用__：不支持
> 
> __小程序插件__：支持，需要小程序基础库版本不低于 [3.7.9](1003706)
> 
> __微信 Windows 版__：支持
> 
> __微信 Mac 版__：支持

## 功能描述

加载内置字体。

## 参数

### Object object


```json
[
  {
    "属性": "global",
    "类型": "boolean",
    "默认值": "false",
    "必填": "否",
    "说明": "<是否全局生效"
  },
  {
    "属性": "family",
    "类型": "string",
    "默认值": "",
    "必填": "是",
    "说明": "定义的字体名称"
  },
  {
    "属性": "source",
    "类型": "string",
    "默认值": "",
    "必填": "是",
    "说明": "要加载的内置字体名字",
    "子项": [
      {
        "合法值": "WeChatSansSS",
        "说明": "WeChatSansSS 字体"
      },
      {
        "合法值": "WeChatSansStd",
        "说明": "WeChatSansStd 字体"
      }
    ]
  },
  {
    "属性": "scopes",
    "类型": "Array",
    "默认值": "",
    "必填": "否",
    "说明": "字体作用范围，可选值为 webview / native / skyline，默认全选，设置 native 可在 Canvas 2D 下使用"
  },
  {
    "属性": "success",
    "类型": "function",
    "默认值": "",
    "必填": "否",
    "说明": "接口调用成功的回调函数"
  },
  {
    "属性": "fail",
    "类型": "function",
    "默认值": "",
    "必填": "否",
    "说明": "接口调用失败的回调函数"
  },
  {
    "属性": "complete",
    "类型": "function",
    "默认值": "",
    "必填": "否",
    "说明": "接口调用结束的回调函数（调用成功、失败都会执行）"
  }
]
```

## 示例代码

[在开发者工具中预览效果](https://developers.weixin.qq.com/s/i4rduVmM7JWZ)
```js
wx.loadBuiltInFontFace({
  family: 'WeChatSansSS',
  source: 'WeChatSansSS',
  success: console.log
})
```