You can import VB6 source code and forms into the twinBASIC programming language (with a good expectation it will run first time).
And then you can add modern features and upgrade to 64-bit.
And it is all familiar to VB6 coders :)
And the VB6 compatible twinBASIC programming language supports unicode and 64 bit compilation - and has a modern IDE.
And it can import VB6 source code and forms.
PhotoDemon has now been updated to 64 bit using the twinBASIC programming language.
twinBASIC is backwards compatible with VB6 (and VBA) and can import VB6 source code and forms.