fix

research/examples/simple_sdl2/src/main.rs

diff --git a/research/examples/simple_sdl2/src/main.rs b/research/examples/simple_sdl2/src/main.rs
index 5155b74..7133c68 100644
--- a/research/examples/simple_sdl2/src/main.rs
+++ b/research/examples/simple_sdl2/src/main.rs
@@ -115,7 +115,7 @@
             }
         }
 
-        surface_texture.present();
+        device_handle.queue.present(surface_texture);
     }
 }