Enabling 3DConnexion polling thread in windows, when working in remote session, Adding ability to force hw rendering in remote session

src/PrusaSlicer_app_msvc.cpp

@@ -242,13 +242,14 @@ int wmain(int argc, wchar_t **argv)
 #ifdef SLIC3R_GUI
     // Here one may push some additional parameters based on the wrapper type.
     bool force_mesa = false;
+    bool force_hw   = false;
 #endif /* SLIC3R_GUI */
     for (int i = 1; i < argc; ++ i) {
 #ifdef SLIC3R_GUI
         if (wcscmp(argv[i], L"--sw-renderer") == 0)
             force_mesa = true;
         else if (wcscmp(argv[i], L"--no-sw-renderer") == 0)
-            force_mesa = false;
+            force_hw = true;
 #endif /* SLIC3R_GUI */
         argv_extended.emplace_back(argv[i]);
     }
@@ -261,7 +262,7 @@ int wmain(int argc, wchar_t **argv)
         force_mesa ||
         // Running over a rempote desktop, and the RemoteFX is not enabled, therefore Windows will only provide SW OpenGL 1.1 context.
         // In that case, use Mesa.
-        ::GetSystemMetrics(SM_REMOTESESSION) ||
+        (::GetSystemMetrics(SM_REMOTESESSION) && !force_hw) ||
         // Try to load the default OpenGL driver and test its context version.
         ! opengl_version_check.load_opengl_dll() || ! opengl_version_check.is_version_greater_or_equal_to(2, 0);
 #endif /* SLIC3R_GUI */

src/slic3r/GUI/Mouse3DController.cpp

@@ -668,6 +668,11 @@ void Mouse3DController::init()
 #ifndef _WIN32
     	// Don't start the background thread on Windows, as the HID messages are sent as Windows messages.
 	    m_thread = std::thread(&Mouse3DController::run, this);
+#else
+        // For some reason, HID message routing does not work well with remote session. Requires further investigation
+        if (::GetSystemMetrics(SM_REMOTESESSION)) {
+            m_thread = std::thread(&Mouse3DController::run, this);
+        }
 #endif // _WIN32
 	}
 }