QMessageFilter and QMessageService documentation.

1)In the QMessageService class there is a typo.the word operation got repeated.
Ref- void QMessageService::progressChanged ( uint value, uint total ) [signal]

This signal is emitted when the operation operation has progressed.

2)In the QMessageService::queryMessages()
"Emits via messagesFound() signals QMessageIds of messages in the messaging store." requires citation.

More appropriate description could be "Emits via messagesFound() signal,Returns the QMessageId s of messages in the messaging store" or remove the line

*QMessageIds of messages in the messaging store.

3)In the QMessageFilter Class isEmpty() function
bool QMessageFilter::isEmpty () const
there is a sentence in the last saying

"The result of combining two empty filters is an empty filter."
but there is no implementation for the overloaded plus operator in the class which will perform the above said operation,
so sentence is redundant.

4)In the QMessageAccountFilter QMessageFilter QMessageFolderFilter classes operators '|','|=','&','&=' are stated as logical operators where as
the | is a BITWISE operator.similarly |=,~,&,&=.
please look in to this.

Logical operators: AND (&&) and OR (||)
Bitwise operators: AND (&), OR (|), and XOR (^).
please loolin to this.

operator|:QMessageAccountFilter QMessageFilter QMessageFolderFilter
operator|=: QMessageAccountFilter QMessageFilter QMessageFolderFilter
operator~: QMessageAccountFilter QMessageFilter QMessageFolderFilter