import { NativeElement } from "../core/Component";
import { QClipboard } from "./QClipboard";
import { QStyle } from "./QStyle";
import { QObjectSignals, QObject } from "../QtCore/QObject";
import { QPalette } from "./QPalette";
import { QScreen } from "./QScreen";
import { QIcon } from "./QIcon";
/**

> QApplication is the root object for the entire application. It manages app level settings.

* **This class is a JS wrapper around Qt's [QApplication class](https://doc.qt.io/qt-5/qapplication.html)**

The QApplication class manages the GUI application's control flow and main settings. In Vixen you will never create an instance of it manually. Vixen's internal runtime `Qode` does it for you on app start. You can access the initialised QApplication though if needed.

### Example

```js
import { QApplication } from "@vixen-js/core"

const qApp = QApplication.instance();
qApp.quit();
```
 */
export declare class QApplication extends QObject<QApplicationSignals> {
    constructor(arg?: QObject | NativeElement);
    devicePixelRatio(): number;
    exec(): number;
    exit(exitCode: number): number;
    palette(): QPalette;
    processEvents(): void;
    quit(): number;
    quitOnLastWindowClosed(): boolean;
    setQuitOnLastWindowClosed(quit: boolean): void;
    setStyleSheet(styleSheet: string, postprocess?: boolean): void;
    static instance(): QApplication;
    static applicationDisplayName(): string;
    static clipboard(): QClipboard | null;
    static desktopFileName(): string;
    static desktopSettingsAware(): boolean;
    static platformName(): string;
    static primaryScreen(): QScreen | null;
    static screens(): QScreen[];
    static setApplicationDisplayName(name: string): void;
    static setDesktopFileName(name: string): void;
    static setDesktopSettingsAware(on: boolean): void;
    static setWindowIcon(icon: QIcon): void;
    static windowIcon(): QIcon;
    static setStyle(style: QStyle): void;
    static style(): QStyle;
}
export interface QApplicationSignals extends QObjectSignals {
    applicationDisplayNameChange: () => void;
    focusWindowChange: () => void;
    lastWindowClose: () => void;
    primaryScreenChange: (screen: QScreen) => void;
    screenAdd: (screen: QScreen) => void;
    screenRemove: (screen: QScreen) => void;
}