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 Function notational conventions
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 Many of the functions provided by Blinker can be accessed from several
 languages, using the standard C calling conventions.

 Blinker provides specific interfaces for C/C++, for Microsoft Basic PDS and
 QuickBasic, and for CA-Clipper. If you are using a language not mentioned
 here, it is likely that your compiler can be directed to use the C calling
 convention to access Blinker functions. Consult your compiler documentation
 for further information on mixed language programming.

 The tables on the following pages detail the notational convention used to
 describe the types of parameters and return values, and the appropriate data
 types for each calling convention.

 Each parameter, (or return value) is preceded by a one or two letter prefix
 denoting the type of the value, which also indicates the way the parameter
 is passed to the function.

 C and Assembler programmers note: C and Assembler programs calling Blinker
 functions should pass a value of -1 for all unused parameters.