Open external window in windows from QML application: SetProcessDpiAwareness(2) failed

[robro]

Hello,

I am writing a QML application in which I call C++ code.
This code opens normally an external non Qt based (I think) window.
If I execute the code from a console application everything works fine, but if I try to open the window from QML nothing opens and I get the following error:

SetProcessDpiAwareness(2) failed: COM error 0xffffffff80070005  (Unknown error 0x0ffffffff80070005), using 2

Is there a possibility to fix that?
I already googled about the problem, but have not found a solution.

Thank you very much!

[robro]

Ok, I have not found a solution but a workaround.

I have to open and close the external window before my QML gui is opened.
So I do this in my main before the QML engine loads the QML file.
Then I pass the necessary information from the external window via pointers to my GUI.