General and Desktop

Solved by deleting the output folder.

I think I've two options here. I write file-manager functions on client side which would be remotely invoked and the output would be transmitted back to my server to be shown in QML (?) Or Instead of writing every function, I could utilize clients CMD (as it has already builtin functions e.g. cd, dir, copy, move) and throws STDOUT back to my server to be shown in QML window/frame (?)

@ChrisW67 Thank you for your answer. I should have probably changed the argument from 'QString&' to 'const QString&' rather than just 'QString'. Perhaps Qt has nothing to do with it. It's just that the MSVC compiler got tired of having it this way and decided that in 2022 we will do the right thing. But I haven't updated it. This is the machine rebellion. Against bad code I guess.

@Dimi you can check file after open file dialog finished If file end with.jpg .png etc....

@Wasee said in Qt program crash why?: If statement is working for if(test=="0x0") but not for if(test=="0x1"). Even test value in terminal is "0x1". at this point not entertaining to this if condition. thanks I don't want to hurt you, but it looks like you are not really understanding what you are doing. Why you don't use the debugger to set break points and running this part of code step by step to see what is really happening, as @JonB suggest to you?

@philxxx609 Then SQLite is not the right database for your use case

@jsulm That crossed my mind also, so I did a full uninstall, then reinstalled from the Qt installer. Didn't change.

@kshegunov So you're suggesting I reuse what I have already painted and only repainting the visible parts? I'm not sure I'm understanding you. What I would like is to only paint the visible part of the image for each movement in the ScrollBar and everything else should be empty. However my Label needs to be bigger to get the ScrollBars to represent my entire image. Now I need my image to be positioned where the QScrollArea is showing. WIth QWidget I would place a QWidget in QScrollArea, resize it and then paint directly on my widget in the area I want? Is it possible to start drawing in a specific location there?

@Christian-Ehrlicher @JonB Hi there, I have tested different terminals. The terminal that best "responds" is xfce4-terminal. The problem is: if I don't have any xfce4-terminal launched at first the qprocess works correctly. If by any chance I have launched some xfce4-terminal the qprocess tells me that the process has finished and sets the pid of the process to 0. It is a bit strange. Regards and thanks for the help.

Okay I understend. Thanks for help :)

@JonB said in About exception: /EHa What /EHa does is chaniging the definition of an exception, extending it, wrapping system level errors as exceptions. This is non-standard and AFAIK MSVC specific. I would stay as far away from it as possible.

@pachisuro4096 oh my goodness where to begin. Using threads when not needed (asynchronous api) forcing synchronous behaviour on asynch api overwriting run as threading method not using the exec() of QThread class but using an additional QEventloop calling deleteLater on a stack variable the problem is probably your timeout 2 seconds could be to short

@Dan203 I would say it is up to you. Creating separate widgets makes sence if you want to reuse them somewhere else in your app.

@Firedan1176 said in slots and signals without ability to modify worker thread?: Each frame is processed within a thread How do these threads provide the result of their processing? How does the API look like?

Thanks a lot!

@Mozzie There are examples how remote connection works: https://doc.qt.io/qt-5/remoteobjects-example-static-source.html