Opens a stream access to the remote file.
Returns a reference to the newly created SFTP stream object.
Use this method to open remote access to a file using stream interface.
Note, that call to this method sets SFTPClient into synchronous for the time of all TElSftpStream methods execution.
Note, setting of file opening mode differs for VCL and .NET versions. To enable several modes in .NET use bitwise OR operation, for example ‘fmRead | fmWrite | fmAppend’.