virtual Bool_t ADF::FrameBlock::SetBlock	(	Char_t *	= `0x0`,
		UInt_t	= `0u`,
		char	= `'r'`,
		char	= `'l'`,
		UInt_t	= `0u`
	)

pure virtual

Attach a external block to this.

Should be possible only for certain type of blocks.

if r is set as an option (default) then rewind is called :

if the mode is kRead then the attached buffer should be full of data and with Rewind called, the FrameBlock is ready to be read
if the mode is kWrite then whatever there is in the attached buffer it will be overwritten because Rewind is called. It is a way to redirect the output to a given piece of memory.

if r is not set is means the EoB has been reached. An explicit call of Rewind should be done.

To detach the external block, call SetBlock()