Add option to disable native pen/touch support

docs/source/about/advanced_usage.rst

@@ -289,6 +289,24 @@ high_resolution_scrolling
 
       high_resolution_scrolling = enabled
 
+native_pen_touch
+^^^^^^^^^^^^^^^^
+
+**Description**
+   When enabled, Sunshine will pass through native pen/touch events from Moonlight clients. 
+
+   This can be useful to disable for older applications without native pen/touch support.
+
+   .. Caution:: Applies to Windows only.
+
+**Default**
+   ``enabled``
+
+**Example**
+   .. code-block:: text
+
+      native_pen_touch = enabled
+
 keybindings
 ^^^^^^^^^^^
 

src/config.cpp

@@ -428,6 +428,7 @@ namespace config {
     true,  // controller enabled
     true,  // always send scancodes
     true,  // high resolution scrolling
+    true,  // native pen/touch support
   };
 
   sunshine_t sunshine {
@@ -1061,6 +1062,8 @@ namespace config {
     bool_f(vars, "always_send_scancodes", input.always_send_scancodes);
 
     bool_f(vars, "high_resolution_scrolling", input.high_resolution_scrolling);
+    bool_f(vars, "native_pen_touch", input.native_pen_touch);
+
     int port = sunshine.port;
     int_between_f(vars, "port"s, port, { 1024 + nvhttp::PORT_HTTPS, 65535 - rtsp_stream::RTSP_SETUP_PORT });
     sunshine.port = (std::uint16_t) port;

src/config.h

@@ -123,6 +123,7 @@ namespace config {
     bool always_send_scancodes;
 
     bool high_resolution_scrolling;
+    bool native_pen_touch;
   };
 
   namespace flag {

src/platform/windows/input.cpp

@@ -1720,7 +1720,9 @@ namespace platf {
 
     // We support pen and touch input on Win10 1809+
     if (GetProcAddress(GetModuleHandleA("user32.dll"), "CreateSyntheticPointerDevice") != nullptr) {
-      caps |= platform_caps::pen_touch;
+      if (config::input.native_pen_touch) {
+        caps |= platform_caps::pen_touch;
+      }
     }
     else {
       BOOST_LOG(warning) << "Touch input requires Windows 10 1809 or later"sv;

src_assets/common/assets/web/config.html

@@ -404,6 +404,18 @@
             This can be useful to disable for older applications that scroll too fast with high resolution scroll events.
           </div>
         </div>
+        <!-- Native pen/touch support -->
+        <div class="mb-3" v-if="platform === 'windows'">
+          <label for="native_pen_touch" class="form-label">Native Pen/Touch Support</label>
+          <select id="native_pen_touch" class="form-select" v-model="config.native_pen_touch">
+            <option value="disabled">Disabled</option>
+            <option value="enabled">Enabled</option>
+          </select>
+          <div class="form-text">
+            When enabled, Sunshine will pass through native pen/touch events from Moonlight clients.<br />
+            This can be useful to disable for older applications without native pen/touch support.
+          </div>
+        </div>
       </div>
       <!--Files Tab-->
       <div v-if="currentTab === 'av'" class="config-page">
@@ -877,6 +889,7 @@
     "min_log_level": 2,
     "motion_as_ds4": "enabled",
     "mouse": "enabled",
+    "native_pen_touch": "enabled",
     "nvenc_h264_cavlc": "disabled",
     "nvenc_preset": "1",
     "nvenc_realtime_hags": "enabled",