How do you use or integrate c plus plus code in visual basic 6?

Answer 1

You can't integrate C++ source code directly into Visual Basic code. In order to make use of code written in another language, including C++, you must compile that source to produce a DLL. You can then link to that DLL via Visual Basic. The only caveat is that you must replace the C++ data types in the function declarations with the equivalent Visual Basic data types, such as 'Byte' for a C++ unsigned char, or 'Single' for a C++ float.