Thin Windows shell access and bundle quiet validation

src/platform_windows/windows_runtime_shell.cpp

@@ -152,6 +152,26 @@ WacomTablet* bound_wacom_tablet() noexcept
     return retained_runtime_state().tablet;
 }
 
+HWND main_window_handle() noexcept
+{
+    return retained_state().hWnd;
+}
+
+const wchar_t* main_window_title() noexcept
+{
+    return retained_state().window_title;
+}
+
+bool main_window_sandboxed() noexcept
+{
+    return retained_state().sandboxed;
+}
+
+void set_main_window_sandboxed(bool sandboxed) noexcept
+{
+    retained_state().sandboxed = sandboxed;
+}
+
 int run_main_application(int argc, char** argv)
 {
     auto& state = retained_state();