January 27, 2021
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Visual Basic 6 Win32 API Tutorial

  • By James Limm
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In the previous chapter, we looked at the basics of an API call and went over some examples of how to use them in VB. So you should now be ready to get down to some of the real nitty-gritty.

In this chapter we'll be investigating how API calls work at a much lower level. This will allow you to avoid some of the classic problems that have tripped up many other VB programmers in the past.

In this chapter we'll cover:

  • Data Types and API calls
  • Error handling with API calls
  • Other troublesome calling issues

Finally, we'll be introduced to the Encryption Program. We will use this application throughout the rest of this book as a test ground for our Win32 development. In this chapter we'll build the UI for this project as well as covering how the encryption algorithm will function although we'll leave the coding for the next chapter.

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This article was originally published on November 20, 2002

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