A guide to developing desktop applications using Vue.js and C++
Guide to developing desktop applications using Vue.js and C language
With the development of the Internet, front-end technology is constantly updated and improved. As a lightweight, efficient, and easy-to-use front-end framework, Vue.js has great advantages in developing web applications. However, in some specific scenarios, we may need to develop more complex desktop applications, in which case we need to combine C language to implement some underlying functions.
This article will introduce how to use Vue.js and C language to develop desktop applications, and provide some code examples to help you better understand and use it.
First, we need to install Vue.js and related development tools. You can open a terminal and execute the following code:
npm install -g @vue/cli
Next, create a new Vue.js project:
vue create desktop-app
Then, we need to install some necessary dependency packages in order to Use C language functions in the application. You can execute the following command:
npm install ffi ref-napi
To use C language functions in Vue.js, you need to use the ffi and ref-napi libraries to provide and access the C function interface. These libraries allow us to call and use underlying C code in JavaScript.
Before we start writing code, we need to create a new folder in the root directory of the Vue.js project to store C code. We can create the folder and a new C file using the following command:
mkdir src/cpp touch src/cpp/native.cpp
Next, we can write some C code in the native.cpp file, for example:
#include <iostream> extern "C" { int add(int a, int b) { return a + b; } }
This is A simple C function that calculates the sum of two integers. In this function, we use the extern "C" keyword to ensure that the C code can be called and used by JavaScript.
Next, we need to create a Vue component in Vue.js to call the C function. We can create a new Vue component in the components folder under the src directory and write the following code in it:
<template> <div> <h1 id="Desktop-App">Desktop App</h1> <p>{{ result }}</p> </div> </template> <script> import ffi from 'ffi'; import ref from 'ref-napi'; export default { data() { return { result: 0, }; }, mounted() { const lib = ffi.Library('./libnative', { add: ['int', ['int', 'int']] }); const result = lib.add(2, 3); this.result = result; }, }; </script> <style scoped> h1 { color: blue; } </style>
In this Vue component, we have imported and used the ffi and ref-napi libraries C's add function. In the mounted life cycle hook, we call the add function to calculate the sum of 2 and 3, and assign the result to the result attribute for display on the page.
Finally, we can introduce and use this new Vue component in the main component of the application. We can modify the App.vue file in the src directory and write the following code:
<template> <div id="app"> <img src="/static/imghwm/default1.png" data-src="./assets/logo.png" class="lazy" alt="Vue logo"> <HelloWorld /> </div> </template> <script> import HelloWorld from './components/HelloWorld.vue'; export default { name: 'App', components: { HelloWorld, }, }; </script> <style> #app { font-family: Avenir, Helvetica, Arial, sans-serif; } </style>
Now, we can run the application and see the effect of our C function being called in Vue.js. Execute the following command to launch the app:
npm run serve
By visiting http://localhost:8080 you will be able to see a simple desktop application in your browser and the application will display 5 as the result (2 3).
The above is a guide to developing desktop applications using Vue.js and C language. By combining Vue.js and C, we can achieve greater flexibility and performance in front-end development. I hope this article helps you in developing desktop applications.
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