QML canvas.save() or Item grabToImage() create a png file with transparent background

Tân Ngọc Đỗ

Hello guys,

I have a picture drawn on Qml canvas. I want to store that picture by calling canvas.save() or cavas.grabToImage() .
When I tried to save with "png" type , my image have a black background but the image generated with a transparent background like this: https://bugreports.qt.io/browse/QTBUG-44288
Saving to Jpeg or bmp is ok.

Could you please help ?

Thank you!

p3c0

@Tân-Ngọc-Đỗ Isn't it a bug then ?

? Offline

I'd be cool if people would vote the bug up

VinamraKumarJha

Canvas
{
    id: canvas
    anchors
    {
        fill       : parent
    }
    // antialiasing: true

    onPaint:
    {
        var ctx = canvas.getContext("2d")

        ctx.fillStyle = "white"
        ctx.fillRect(0, 0, canvas.width, canvas.height)
    }

}

// Adding a fillStyle might help !!!!