Tony Tang

`cv.QRCodeDetector` works well. But i can't find class `cv.QRCodeEncoder`, although i can find some related constant like `cv.QRCodeEncoder_CORRECT_LEVEL_Q`.

hi, Currently we have to add all tag lib path to 'GTAGSLIBPATH' in global 'process-environment' which may lead to incorrect jump if several lib path contains the same 'TAG'. For...