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Property (As UInt64 )

aBinaryStream.Length = newUInt64Value
or
UInt64Value = aBinaryStream.Length

Supported for all project types and targets.

The length of the file in bytes. If you set the Length property to a value smaller than its current value, it will truncate the file.

Sample Code

Var i As UInt64
Var readStream As BinaryStream = BinaryStream.Open(readFile, False)
i = readStream.Length