public void ShowPrintDialog(nsIDOMWindow parent, nsIWebBrowserPrint webBrowserPrint, nsIPrintSettings printSettings)
{
const int NS_ERROR_ABORT = unchecked ((int)0x80004004);
using (var dialog = new System.Windows.Forms.PrintDialog())
{
dialog.UseEXDialog = true;
if (dialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
var settings = dialog.PrinterSettings;
printSettings.SetPrinterNameAttribute(dialog.PrinterSettings.PrinterName);
// Add other settings here ...
}
else
{
throw new COMException("Operation aborted", NS_ERROR_ABORT);
}
}
}