CancelSubscription Method
Cancels or deletes a recurring payment subscription.
Syntax
int CancelSubscription(const QString& qsSubscriptionId);
Remarks
This method is used to cancel or delete a recurring subscription identified by the specified SubscriptionId.
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.)