37 lines
736 B
Markdown
37 lines
736 B
Markdown
# power-monitor
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The `power-monitor` module is used to monitor power state changes. You can
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only use it in the main process. You should not use this module until the `ready`
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event of the `app` module is emitted.
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For example:
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```javascript
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var app = require('app');
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app.on('ready', function() {
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require('power-monitor').on('suspend', function() {
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console.log('The system is going to sleep');
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});
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});
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```
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## Events
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The `power-monitor` module emits the following events:
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### Event: 'suspend'
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Emitted when the system is suspending.
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### Event: 'resume'
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Emitted when system is resuming.
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### Event: 'on-ac'
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Emitted when the system changes to AC power.
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### Event: 'on-battery'
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Emitted when system changes to battery power.
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