ExtensionCmd Method
Sends an extension command to the server.
Syntax
QByteArray ExtensionCmd(const QString& qsExtn, const QByteArray& qbaDataBuffer);
Remarks
Use this method to send an extension command to the SFTP server. Provide the extension type via the Extn parameter, and the request body via the DataBuffer parameter.
Upon completion of the command, the method returns the response as received from the server.
Error Handling
This method returns a Byte Array value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.