Add api\global-shortcut.md
Add api\global-shortcut.md
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docs-translations/zh-CN/api/global-shortcut.md
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# global-shortcut
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`global-shortcut` 模块可以便捷的为您设置(注册/注销)各种自定义操作的快捷键.
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**Note**: 使用此模块注册的快捷键是系统全局的(QQ截图那种), 不要在应用模块(app module)响应 `ready`
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消息前使用此模块(注册快捷键).
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```javascript
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var app = require('app');
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var globalShortcut = require('global-shortcut');
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app.on('ready', function() {
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// Register a 'ctrl+x' shortcut listener.
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var ret = globalShortcut.register('ctrl+x', function() {
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console.log('ctrl+x is pressed');
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})
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if (!ret) {
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console.log('registration failed');
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}
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// Check whether a shortcut is registered.
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console.log(globalShortcut.isRegistered('ctrl+x'));
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});
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app.on('will-quit', function() {
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// Unregister a shortcut.
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globalShortcut.unregister('ctrl+x');
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// Unregister all shortcuts.
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globalShortcut.unregisterAll();
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});
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```
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## Methods
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`global-shortcut` 模块包含以下函数:
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### `globalShortcut.register(accelerator, callback)`
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* `accelerator` [Accelerator](accelerator.md)
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* `callback` Function
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注册 `accelerator` 快捷键. 当用户按下注册的快捷键时将会调用 `callback` 函数.
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### `globalShortcut.isRegistered(accelerator)`
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* `accelerator` [Accelerator](accelerator.md)
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查询 `accelerator` 快捷键是否已经被注册过了,将会返回 `true`(已被注册) 或 `false`(未注册).
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### `globalShortcut.unregister(accelerator)`
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* `accelerator` [Accelerator](accelerator.md)
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注销全局快捷键 `accelerator`.
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### `globalShortcut.unregisterAll()`
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注销本应用注册的所有全局快捷键.
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