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DATA TYPE	DECLARATION	CALL
NULL	ByVal As Long	Zero or variable containing zero.
	ByVal As Any	0& or Long variable containing zero.
	As Any	ByVal 0& or ByVal with a Long variable containing zero.
String	ByVal As String	String buffer preinitialized to the necessary buffer length.
	ByVal As Any	String buffer preinitialized to the necessary buffer length.
	As Any	String buffer preinitialized to the necessary buffer length preceded by ByVal operator.
	As Byte	First byte in a byte array to load with an ANSI string. String will need to be converted to Unicode before assigning to VB string.
	ByVal As Long	Address of first byte in a byte array to load with an ANSI string obtained using the VarPtr operator. String will need to be converted to Unicode before assigning to VB string.
Long	As Long	Long variable to load with the data.
	ByVal As Long	Address of Long variable obtained using the VarPtr operator.
	As Any	Long variable to load with the data.
Binary	As Byte	First byte in a byte array to load with binary data.
	As Any	First byte in a byte array to load with binary data.
	ByVal As Long	Address of first byte in a byte array to load with binary data obtained using the VarPtr operator.
Table S14-1: How to Handle Different Data Types



		Stop!



		If you have come up with a code solution on your own, take a look to see which of these two approaches it uses. I encourage you to then take a break and attempt to implement the solution using the other approach. This will help you thoroughly understand the options that are available to you.

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