This is a version of CopyPlusPlus based on Qt/C++.
Advantage: Cross-platform.
Disadvantage: File size is much bigger, from original 5 MB to 50 MB, due to the Qt library files.
But as a computer application, I think it's still acceptable. And I will also make it a single exe file, no need to install.
Besides, I will integrate more funcions into this version, like offline translation, OCR...