ExportKey Method
Serializes the key to a byte array.
Syntax
QByteArray ExportKey();
Remarks
Use this method to save the Key (both the public and secret parts) to a byte array.
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.