Add unsupported-command feedback to the device UI

src/slic3r/GUI/DeviceManager.cpp

@@ -4653,6 +4653,40 @@ void MachineObject::set_ctt_dlg( wxString text){
     }
 }
 
+void MachineObject::show_unsupported_dlg(int code)
+{
+    // why: a dead control invites repeat clicks, and the frame is modeless - without the guard
+    // every click stacks another one. Same shape as set_ctt_dlg above, including the reset on
+    // both hide and close so a dismissed dialog can reappear on the next attempt.
+    if (m_unsupported_dlg_shown) {
+        return;
+    }
+    m_unsupported_dlg_shown = true;
+
+    // why: two codes so the user learns which kind of dead end this is - the slicer having no
+    // translation for the command, or the printer's own config lacking the hardware to run it.
+    const wxString text = (code == ORCA_NETWORK_ERR_CAP_NOT_AVAILABLE) ?
+                              _L("This printer is not configured with the hardware this control needs.") :
+                              _L("This control is not supported on this printer.");
+
+    // note: constructed directly rather than through CallAfter because every publish_json caller
+    // is on the UI thread - clicks come from wx handlers, and the agent marshals its own push
+    // callbacks back to main before parse_json runs. set_ctt_dlg relies on the same property.
+    auto unsupported_dlg = new GUI::SecondaryCheckDialog(nullptr, wxID_ANY, _L("Warning"),
+                                                         GUI::SecondaryCheckDialog::VisibleButtons::ONLY_CONFIRM);
+    unsupported_dlg->update_text(text);
+    unsupported_dlg->Bind(wxEVT_SHOW, [this](auto& e) {
+        if (!e.IsShown()) {
+            m_unsupported_dlg_shown = false;
+        }
+        });
+    unsupported_dlg->Bind(wxEVT_CLOSE_WINDOW, [this](auto& e) {
+        e.Skip();
+        m_unsupported_dlg_shown = false;
+        });
+    unsupported_dlg->on_show();
+}
+
 int MachineObject::publish_gcode(std::string gcode_str)
 {
     json j;