AddExtension Method
Adds an extension to the collection.
Syntax
int AddExtension(const QString& qsId, const QString& qsName, bool bCritical, const QString& qsData);
Remarks
Data necessary to support requirements not otherwise defined in the 3-D Secure message are carried in Message Extensions. AddExtension adds a new extension to the Extensions collection.
Note: The maximum number of extensions is 10.
Error Handling
This method returns a 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. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)