RAD Studio VCL Reference
TReader.NextValue Method

Returns the type of the next item in the reader object's stream without moving the position of the stream.

function NextValue: TValueType;
__fastcall TValueType NextValue();

NextValue is used internally by reader methods to query the type of the next item in the stream. After identifying the type of the next item, NextValue returns with the stream position still before the value-type indicator. 


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