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GetBlockSize
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The GetBlockSize method returns number of bytes currently present in internal data buffer.
C++
long GetBlockSize(void);
BASIC
GetBlockSize() As Long
Parameters
Method has no parameters.
Return Values
The return value is the number of bytes present in internal data buffer or 0 if buffer is empty.
The return value is 0 if no file is attached to the object.
Remarks
Method always returns 0 if data transfer is unbuffered (active buffer size is set to 0).
See Also
GetBufferSize,
GetActiveBufferSize,
GetBlock,
Reading and Writing Data