QLabel scaling issue

[SruDom]

Hi,

I've a quick basic question.
I've designed an app with display screen size 100% (In Windows 7 OS). But now I realize when maginify the screen to 125%, all the labels in my app is also scaled and clipped/cutoff from the screen.

Is there any QLabel property will prevent this happening? Or is there any other easy work around to this issue?

Thanks in advance

[raven-worx]

@SruDom
have you tried adding the following line at the beginning of your main (before creating the QApplication instance):

QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

[SruDom]

@raven-worx

I just tried but has no effect

[mrjj]

@SruDom

Hi
did you also try
QApplication::setAttribute(Qt::AA_EnableHighDpiScaling, false);
or the AA_DisableHighDpiScaling

Anyway, did you read this ?
https://doc.qt.io/qt-5/highdpi.html

Im not sure to what extend Win 7 works as its EOL.

you can try fiddling with QT_SCALE_FACTOR

or try running app with
<application> -platform windows:dpiawareness=0

[SruDom]

@mrjj Thanks for your suggestions.

@mrjj said in QLabel scaling issue:

or try running app with
<application> -platform windows:dpiawareness=0

What you mean by that?

[JonB]

@SruDom
@mrjj means: when you run your application pass -platform windows:dpiawareness=0 on the command-line to your executable. You can do that externally (e.g. from a terminal or shortcut desktop icon), or Qt Creator lets you specify runtime command-line arguments.

[SruDom]

'@JonB Thank you. I tried specify those commands on the run command line argument area on the Qt creator. But I get the following error:

...build-POML060_v1-Desktop_Qt_5_12_0_MSVC2015_64bit-Release\release\POML060_v1.exe <application> -platform windows:dpiawareness=0...
The system cannot find the file specified.

Not sure what I'm doing wrong here..

[Pl45m4]

@SruDom said in QLabel scaling issue:

build-POML060_v1-Desktop_Qt_5_12_0_MSVC2015_64bit-Release\release\POML060_v1.exe <application> -platform windows:dpiawareness=0

Overthink what you did there :)
And read again what @mrjj wrote

[mrjj]

Hi
<application> should not be included in the cmd line in Creator

It simply means Your app. The app.
Sorry I though it sort of a universally way to show it :)

[SruDom]

@mrjj Thanks :)
I tried running app with
-platform windows: dpiawareness = 0
and tried setting the follwoing in the main.cpp
QApplication :: setAttribute ( Qt::AA_DisableHighDpiScaling);
None of them seemed working.

If I change enlarge the screen from 100% to 125% , some labels and widgets parts are being cutoff. I also tried running the app on Win10 but the issue is same.