/// <summary>
/// Commits the input print ticket asynchronously. The completed event handler is expected to close the window.
/// </summary>
/// <param name="validatedTicket"></param>
private void CommitPrintTicketAsync(IPrintSchemaTicket validatedTicket)
{
IPrintSchemaAsyncOperation commitAsyncOperation = printerExtensionEventArgs.Ticket.CommitAsync(validatedTicket);
commitAsyncOperation.Completed += PrintTicketCommitCompleted;
commitAsyncOperation.Start();
}
/// <summary>
/// Invoked when there are constraints in the print ticket selections.
/// </summary>
/// <param name="validatedTicket"></param>
private void HandleTicketConstraints(IPrintSchemaTicket validatedTicket)
{
//
// Retrieved localized display strings from a resource file/
//
string selectionConflictsFound = PrinterExtensionSample.Strings.SelectionConflictsFound;
string selectionConflictsTitle = PrinterExtensionSample.Strings.SelectionConflictsTitle;
MessageBoxResult result = MessageBox.Show(
this,
selectionConflictsFound,
selectionConflictsTitle,
MessageBoxButton.YesNoCancel);
if (result == MessageBoxResult.Yes)
{
CommitPrintTicketAsync(validatedTicket);
}
else
{
PropertyChanged(this, new PropertyChangedEventArgs("PrintSchemaHelperSource"));
}
}
/// <summary>
/// Constructor. Warning constructing this object is expensive, and is best performed
/// asynchronously.
/// </summary>
/// <param name="ticket">The print ticket for which features/options will be retrieved</param>
/// <param name="featureNameCollection">List of features requested</param>
internal PrintSchemaHelper(IPrintSchemaTicket ticket, IEnumerable<String> featureNameCollection)
{
_ticket = ticket;
_featureNameCollection = featureNameCollection;
_capabilities = _ticket.GetCapabilities();
}
/// <summary>
/// Constructor. Warning constructing this object is expensive, and is best performed
/// asynchronously.
/// </summary>
/// <param name="ticket">The print ticket for which features/options will be retrieved</param>
/// <param name="featureNameCollection">List of features requested</param>
internal PrintSchemaHelper(IPrintSchemaTicket ticket, IEnumerable <String> featureNameCollection)
{
_ticket = ticket;
_featureNameCollection = featureNameCollection;
_capabilities = _ticket.GetCapabilities();
}
//
// Implementation details
//
internal PrintSchemaAsyncOperationEventArgs(IPrintSchemaTicket printTicket, int statusHResult)
{
_statusHResult = statusHResult;
_printTicket = printTicket;
}
//
// Implementation details
//
internal PrintSchemaAsyncOperationEventArgs(IPrintSchemaTicket printTicket, int statusHResult)
{
_statusHResult = statusHResult;
_printTicket = printTicket;
}
/// <summary>
/// Commits the input print ticket asynchronously. The completed event handler is expected to close the window.
/// </summary>
/// <param name="validatedTicket"></param>
private void CommitPrintTicketAsync(IPrintSchemaTicket validatedTicket)
{
IPrintSchemaAsyncOperation commitAsyncOperation = printerExtensionEventArgs.Ticket.CommitAsync(validatedTicket);
commitAsyncOperation.Completed += PrintTicketCommitCompleted;
commitAsyncOperation.Start();
}
/// <summary>
/// Invoked when there are constraints in the print ticket selections.
/// </summary>
/// <param name="validatedTicket"></param>
private void HandleTicketConstraints(IPrintSchemaTicket validatedTicket)
{
//
// Retrieved localized display strings from a resource file/
//
string selectionConflictsFound = PrinterExtensionSample.Strings.SelectionConflictsFound;
string selectionConflictsTitle = PrinterExtensionSample.Strings.SelectionConflictsTitle;
MessageBoxResult result = MessageBox.Show(
this,
selectionConflictsFound,
selectionConflictsTitle,
MessageBoxButton.YesNoCancel);
if (result == MessageBoxResult.Yes)
{
CommitPrintTicketAsync(validatedTicket);
}
else
{
PropertyChanged(this, new PropertyChangedEventArgs("PrintSchemaHelperSource"));
}
}
/// <summary>
/// This method sets up data binding sources and performs other initialization tasks.
/// </summary>
/// <param name="eventArgs"></param>
public void Initialize(PrinterExtensionEventArgs eventArgs)
{
//
// Populate the data binding sources.
//
DataContext = this;
printerExtensionEventArgs = eventArgs;
PrinterQueue = eventArgs.Queue;
displayedPrintTicket = eventArgs.Ticket;
//
// Send a bidi query requesting ink levels.
//
// Please note: As this event will fire many times, it is recommended to maintain event
// listeners for the life time of the application. Furthermore, the relationship to this
// being invoked and the calling SendBidiQuery() is not 1:1; in fact, it is *:N, where the
// listener may be called several times with bidi updates.
//
//
PrinterQueue.OnBidiResponseReceived += OnBidiResponseReceived;
PrinterQueue.SendBidiQuery("\\Printer.consumables");
}
