DirectWrite: CreateFontFaceFromHDC() failed

dr3mro

I had a project on Qt 5.5.1 and all was fine but today i had upgraded Qt to 5.7 and then i had the following error on runtime it doesn't crash the app but it is making me crazy as it was not there before

```

DirectWrite: CreateFontFaceFromHDC() failed (Indicates an error in an input file such as a font file.) for QFontDef(Family="Small Fonts", pointsize=15, pixelsize=20, styleHint=5, weight=50, stretch=100, hintingPreference=0) LOGFONT("Small Fonts", lfWidth=0, lfHeight=-20) dpi=96 DirectWrite: CreateFontFaceFromHDC() failed (Indicates an error in an input file such as a font file.) for QFontDef(Family="System", pointsize=15, pixelsize=20, styleHint=5, weight=50, stretch=100, hintingPreference=0) LOGFONT("System", lfWidth=0, lfHeight=-20) dpi=96


How can I fix it?

mrjj

Hi
Never saw such message before.
Can you make a small test that give this error/warning?

Have you tried on other Pc?

Galbarad

Hi @mrjj
I take same error code when try to use custom font
there simple code
Desktop_Qt_5_10_1_MSVC2017_64bit Windows 10

import QtQuick 2.9
import QtQuick.Window 2.2

Window {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")


    Text {
        id: tMain
        font.family: flMain.name
        anchors.centerIn: parent
        text: "Hello world"
        font.pixelSize: 0.05 * parent.height
    }

    FontLoader {
        id: flMain
        //source: "qrc:///Chibola.ttf"
        onStatusChanged: {
            console.log("flMain.onStatusChanged", flMain.status, flMain.name);
        }
    }

    Component.onCompleted: {
        flMain.source = "qrc:///Chibola.ttf";
    }
}

QML debugging is enabled. Only use this in a safe environment.
DirectWrite: CreateFontFaceFromHDC() failed (Indicates an error in an input file such as a font file.) for QFontDef(Family="", pointsize=8.5, pixelsize=11, styleHint=5, weight=50, stretch=100, hintingPreference=0) LOGFONT("MS Sans Serif", lfWidth=0, lfHeight=-11) dpi=96
DirectWrite: CreateFontFaceFromHDC() failed (Indicates an error in an input file such as a font file.) for QFontDef(Family="", pointsize=8.5, pixelsize=11, styleHint=5, weight=50, stretch=100, hintingPreference=0) LOGFONT("MS Sans Serif", lfWidth=0, lfHeight=-11) dpi=96
qml: flMain.onStatusChanged 1 Chibola

there project with font file
https://www.dropbox.com/s/7l2ol7dw1uywoji/TestFont.zip?dl=0

Galbarad

@mrjj uh sorry I already found bug
https://bugreports.qt.io/browse/QTBUG-57180