private static void RegisterTagEventHandler()
{
if (myHandler == null)
{
myHandler = new TagEventHandler(NXObjectManager.TagHandler);
TagEventMaskType mask = TagEventMaskType.TAG_EVENT_UNDO_DELETE_DISCARDED_MASK | TagEventMaskType.TAG_EVENT_UNDO_DELETE_EXPIRED_MASK | TagEventMaskType.TAG_EVENT_UNDO_OVER_DELETE_MASK | TagEventMaskType.TAG_EVENT_NORMAL_DELETE_MASK | TagEventMaskType.TAG_EVENT_UNDO_OVER_CREATE_MASK;
JAM_register_managed_tag_event_handler(mask, myHandler, ref handlerId);
}
}
private static void UnloadHandler(object sender, EventArgs e)
{
AppDomain.CurrentDomain.DomainUnload -= unloadHandler;
if (handlerId >= 0)
{
JAM_unregister_tag_event_handler(handlerId);
}
myHandler = null;
handlerId = -1;
}
// called when an attached rfid reader loses detection of a tag
void rfid_TagLost(object sender, TagEventArgs e)
{
if (this.InvokeRequired)
{
var m = new TagEventHandler(rfid_TagLost);
this.Invoke(m, new object[2] {
sender, e
});
return;
}
WindowState = FormWindowState.Minimized;
}
// called when an attached rfid reader detects a tag
void rfid_Tag(object sender, TagEventArgs e)
{
if (this.InvokeRequired)
{
var m = new TagEventHandler(rfid_Tag);
this.Invoke(m, new object[2] {
sender, e
});
return;
}
Loyalty.Program.ActiveCard = e.Tag;
// Update last activity for this tag
MTO.UpdateTag(new Tag
{
TagNum = e.Tag,
LastActivity = DateTime.Now
});
// Show the operator form
var frm = new frmOperator(MTO);
frm.Show();
frm.SetWorkingCard(e.Tag);
// for debugging
var lvi = new ListViewItem();
lvi.Text = "Tag";
lvi.SubItems.Add(DateTime.Now.ToLongTimeString());
lvi.SubItems.Add("Observed tag '" + e.Tag + "'");
listView1.Items.Add(lvi);
}
private static extern int JAM_register_managed_tag_event_handler(TagEventMaskType mask, TagEventHandler handler, ref int id);
public static void AddToTagEvent(TagEventHandler d)
{
myRfid.Tag += d;
}
