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Page 446
How do I define a callback function?
See Puzzle 20, "Making Connections," in Part I of this book.
All about Strings
What is a NULL string?
See Puzzle 2, "The Last Error," in Part I of this book.

How do I pass strings to API functions?
See Puzzle 4, "It's All in the Name," in Part I of this book.
See Puzzle 5, "Finding the Executable Name."
See Puzzle 16, "Serially Speaking."
See Tutorial 5, "The ByVal Keyword: The Solution to 90 Percent of All API Problems," in Part III of this book.

How do I get rid of the NULL terminating character in a string?
See Puzzle 1, "Where, oh, Where Is That API Call?" in Part I of this book.
See Puzzle 4, "It's All in the Name."
See Puzzle 5, "Finding the Executable Name."
See Puzzle 16, "Serially Speaking."

How do the VarPtr and StrPtr operators differ?
See Puzzle 26, "Universal Identifiers, Part 2," in Part I of this book.
See Tutorial 5, "The ByVal Keyword: The Solution to 90 Percent of All API Problems," in Part III of this book.

 
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