Bildschirmfoto (Screenshot)

Konsolidiert in v4.1

Ab v4.1 ist die Screenshot-Funktion direkt in die Desktop-Shell integriert. Screenshots werden per Tastenkuerzel (Ctrl+Shift+3/4/5) ausgeloest, ein Toast zeigt die Vorschau. Die separate App wurde deaktiviert. Siehe Topbar-Popovers.

Capture screenshots of the Niuton desktop with annotations, timer delay, and a gallery view.

Overview

Since Niuton is a cloud desktop in the browser, the Screenshot app captures the Niuton desktop content (not the physical screen). It uses html2canvas to render the DOM to an image.

Capture Modes

Mode	Description
Full Desktop	Captures the entire Niuton desktop
Region	Drag to select a rectangular area
Window	Capture a single app window

Keyboard Shortcuts

Shortcut	Action
Ctrl+Shift+3	Full desktop screenshot
Ctrl+Shift+4	Region selection
Ctrl+Shift+5	Open screenshot toolbar

Annotations

After capturing, annotate directly on the screenshot:

Tool	Description
Arrow	Draw directional arrows
Rectangle	Highlight areas
Ellipse	Circular highlights
Freehand	Draw freely
Text	Add text labels
Blur / Pixelate	Redact sensitive content
Numbering	Add numbered markers (1, 2, 3 for tutorials)

Color and stroke width are configurable for all annotation tools.

Features

• Timer delay — 3s, 5s, 10s countdown before capture
• Gallery view — Grid of all past screenshots with previews
• Save — Auto-saved to ~/Bilder/Bildschirmfotos/ with timestamp filename
• Copy to clipboard — Quick paste into other apps
• Open in Zeichnen — Transfer to the paint app for extended editing
• Format — PNG, JPEG, or WebP

v3.12 Fixes v3.12

Screenshot-Timeout

Der html2canvas-Timeout wurde erhoeht, um Abbrueche bei grossen Desktops mit vielen offenen Fenstern zu verhindern. Zuvor konnte die Erfassung bei komplexen DOMs fehlschlagen.

Aurora Tools

Tool	Description
list_screenshots	List recent screenshots

Technology

Uses html2canvas (~50KB) for DOM-to-canvas rendering. A canvas overlay handles region selection and annotations.