[Development] Can QImage format plugins require QGuiApplication?

Giuseppe D'Angelo giuseppe.dangelo at kdab.com
Tue Apr 14 02:08:22 CEST 2020


On 4/14/20 1:34 AM, Konstantin Tokarev wrote:
>> The golden rule is that you're not allowed to touch any Qt API without
>> creating a Q*Application object first, unless the documentation says
>> otherwise.
> Question is whether Q_Core_Application should be sufficient for using and image format plugin,
> or QGuiApplication/QApplication is required.

No, any GUI-related API requires QGuiApplication, and any widget-related 
API QApplication.

My 2 c,
Giuseppe D'Angelo | giuseppe.dangelo at kdab.com | Senior Software Engineer
KDAB (France) S.A.S., a KDAB Group company
Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com
KDAB - The Qt, C++ and OpenGL Experts

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