105 lines
2.5 KiB
Markdown
105 lines
2.5 KiB
Markdown
# screen
|
|
|
|
Gets various info about screen size, displays, cursor position, etc. You should
|
|
not use this module until the `ready` event of `app` module gets emitted.
|
|
|
|
`screen` is an [EventEmitter](http://nodejs.org/api/events.html#events_class_events_eventemitter).
|
|
|
|
Make sure to note that in the renderer / DevTools, `window.screen` is a reserved DOM property, so writing `screen = require('screen')` won't work. In our examples below, we use `atomScreen` as the variable name instead.
|
|
|
|
An example of creating a window that fills the whole screen:
|
|
|
|
```javascript
|
|
var app = require('app');
|
|
var BrowserWindow = require('browser-window');
|
|
|
|
var mainWindow;
|
|
|
|
app.on('ready', function() {
|
|
var atomScreen = require('screen');
|
|
var size = atomScreen.getPrimaryDisplay().workAreaSize;
|
|
mainWindow = new BrowserWindow({ width: size.width, height: size.height });
|
|
});
|
|
```
|
|
|
|
Another example of creating a window in the external display:
|
|
|
|
```javascript
|
|
var app = require('app');
|
|
var BrowserWindow = require('browser-window');
|
|
|
|
var mainWindow;
|
|
|
|
app.on('ready', function() {
|
|
var atomScreen = require('screen');
|
|
var displays = atomScreen.getAllDisplays();
|
|
var externalDisplay = null;
|
|
for (var i in displays) {
|
|
if (displays[i].bounds.x > 0 || displays[i].bounds.y > 0) {
|
|
externalDisplay = displays[i];
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (externalDisplay) {
|
|
mainWindow = new BrowserWindow({
|
|
x: externalDisplay.bounds.x + 50,
|
|
y: externalDisplay.bounds.y + 50,
|
|
});
|
|
}
|
|
});
|
|
```
|
|
|
|
## Event: display-added
|
|
|
|
* `event` Event
|
|
* `newDisplay` Object
|
|
|
|
Emitted when `newDisplay` has been added.
|
|
|
|
## Event: display-removed
|
|
|
|
* `event` Event
|
|
* `oldDisplay` Object
|
|
|
|
Emitted when `oldDisplay` has been removed.
|
|
|
|
## Event: display-metrics-changed
|
|
|
|
* `event` Event
|
|
* `display` Object
|
|
* `changedMetrics` Array
|
|
|
|
Emitted when a `display` has one or more metrics changed, `changedMetrics` is
|
|
an array of strings that describe the changes. Possible changes are `bounds`,
|
|
`workArea`, `scaleFactor` and `rotation`.
|
|
|
|
## screen.getCursorScreenPoint()
|
|
|
|
Returns the current absolute position of the mouse pointer.
|
|
|
|
## screen.getPrimaryDisplay()
|
|
|
|
Returns the primary display.
|
|
|
|
## screen.getAllDisplays()
|
|
|
|
Returns an array of displays that are currently available.
|
|
|
|
## screen.getDisplayNearestPoint(point)
|
|
|
|
* `point` Object
|
|
* `x` Integer
|
|
* `y` Integer
|
|
|
|
Returns the display nearest the specified point.
|
|
|
|
## screen.getDisplayMatching(rect)
|
|
|
|
* `rect` Object
|
|
* `x` Integer
|
|
* `y` Integer
|
|
* `width` Integer
|
|
* `height` Integer
|
|
|
|
Returns the display that most closely intersects the provided bounds.
|