From c8a5989b8f2ec4db661b974ffb21eb75a54d9713 Mon Sep 17 00:00:00 2001
From: Tony Barbour <tony@LunarG.com>
Date: Tue, 20 Oct 2015 12:49:46 -0600
Subject: demos: Handle paint events and call RedrawWindow to animate

This keeps MessageBoxs from validation on Windows from hanging the
demos, while allowing the demo to animate
---
 demos/cube.c | 3 ++-
 demos/tri.c  | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/demos/cube.c b/demos/cube.c
index a57bf4ff..12de7f54 100644
--- a/demos/cube.c
+++ b/demos/cube.c
@@ -1814,7 +1814,7 @@ LRESULT CALLBACK WndProc(HWND hWnd,
         break;
     case WM_PAINT:
         demo_run(&demo);
-        return 0;
+        break;
     default:
         break;
     }
@@ -2536,6 +2536,7 @@ int WINAPI WinMain(HINSTANCE hInstance,
             TranslateMessage(&msg); 
             DispatchMessage(&msg);
         }
+        RedrawWindow(demo.window, NULL, NULL, RDW_INTERNALPAINT);
     }
 
     demo_cleanup(&demo);
diff --git a/demos/tri.c b/demos/tri.c
index 06321c22..ef9ff42b 100644
--- a/demos/tri.c
+++ b/demos/tri.c
@@ -1487,7 +1487,7 @@ LRESULT CALLBACK WndProc(HWND hWnd,
     case WM_PAINT:
         if (demo.prepared) {
             demo_run(&demo);
-            return 0;
+            break;
         }
     default:
         break;
@@ -2193,6 +2193,7 @@ int APIENTRY WinMain(HINSTANCE hInstance,
             TranslateMessage(&msg); 
             DispatchMessage(&msg);
         }
+        RedrawWindow(demo.window, NULL, NULL, RDW_INTERNALPAINT);
     }
 
     demo_cleanup(&demo);
-- 
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