QR decode encode support utf-8 without using third parts software, external DLL,OCX?

hi,i am searched in google to can find any vb6 source code QR generator and decoder without any dll,ocx or like this but i cant find good samples,for example i found this :

its just exe sample without any dll or ocx or ... :
- http://www.luigimicco.altervista.org...-visual-basic/

or i found some sources with rc5 like this (its used external dll):

VB6 QR-Encoding+Decoding and IME-Window-Positioning

or

leandroascierto

but it works with online services like as zxing.org.

so i created new project and used some classes from another projects about qr and completed 50% with support these :
image link

- generate QR
- supported utf-8
- supported shift-jis
- supported save as bmp,gif,jpg(variable quality),png
- supported error correction
- supported display and export good size per pixel.
- supported backcolor and forecolor

but i want complete my project with decode QR too without external dll or ocx or online website services,so any body here have any user control or sample source to can decode without online sevices sites or ocx or dll?