Get the value for a particular property.
QString GetProperty(const QString& qsPropertyName);
The class will search through its internal Properties properties for the property identified by PropertyName and will return the value associated with it.
PropertyName may also be a partial XPath expression to the retrieved resource XML. This is useful for reading values of composite properties.
This method returns a String 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.