Updates an object's canned access policy.
int UpdateObjectACL(const QString& qsObjectName);
If the VersionId property is non-empty, the canned access policy of the specified version of the object is updated instead.
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.)