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Details

Type: Bug
Resolution: Invalid
Priority: P2: Important
Fix Version/s: None
Affects Version/s: 5.15
Component/s: Quick: SceneGraph
Labels:
None

Commits:
91e75fc34 (dev)

Description

QQuickItem::grabToImage always captures the item with scale factor 1, ignoring retina scale factors. For instance, if an item is drawn with 300x300 pixels on the screen on a device with scale factor 3 then grabToImage will only capture a 100x100 version of the item.

Can be reproduced with the following QML snippet:

import QtQuick 2.0

Text {
    width: 200;
    height: 100;
    id: root;

    function grab() {
        root.grabToImage(function(result) { result.saveToFile("grab.png"); });
    }
    
    Timer {
        interval: 500; running: true; repeat: false
        onTriggered: grab()
    }

    text: "Hello World!"
    font.pointSize: 24
}