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Chapter 5

Virtual Port Data Transfer Function Reference

This chapter provides a comprehensive, alphabetically-ordered reference to Virtual Port Data Transfer API functions. A typical function description includes: Prototype The prototype is shown followed by a list of the function arguments. Natural MicroSystems data types include the following: · SHORT · WORD · DWORD · INT16 · INT32 · BYTE 16-bit signed 16-bit unsigned 32-bit unsigned 16-bit signed 32-bit signed 8-bit unsigned If a function argument is a data structure, the complete data structure is defined. Return Values The return value for a function is either SUCCESS or an error code. For asynchronous functions, a return value of SUCCESS indicates the function was initiated; subsequent events indicate the status of the operation. Details Additional information about function usage See Also References to related functions.

Prototype	The prototype is shown followed by a list of the function arguments. Natural MicroSystems data types include the following:
	· SHORT · WORD · DWORD · INT16 · INT32 · BYTE	16-bit signed 16-bit unsigned 32-bit unsigned 16-bit signed 32-bit signed 8-bit unsigned
	If a function argument is a data structure, the complete data structure is defined.
Return Values	The return value for a function is either SUCCESS or an error code. For asynchronous functions, a return value of SUCCESS indicates the function was initiated; subsequent events indicate the status of the operation.
Details	Additional information about function usage
See Also	References to related functions.

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