https://github.com/Grumbel/sdl-jstest/issues/15
https://github.com/Grumbel/sdl-jstest/commit/62124aa8b9d4c3a8eec5206bf0fc09fade52b326

From 62124aa8b9d4c3a8eec5206bf0fc09fade52b326 Mon Sep 17 00:00:00 2001
From: Ingo Ruhnke <grumbel@gmail.com>
Date: Wed, 12 Jul 2023 17:34:38 +0200
Subject: [PATCH] Fix initial blank screen in sdl-jstest

Screen was left blank due to only getting drawn once a new event
arrived.

Fixes #15
---
 src/sdl-jstest.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/sdl-jstest.c b/src/sdl-jstest.c
index 388e84d..bc95024 100644
--- a/src/sdl-jstest.c
+++ b/src/sdl-jstest.c
@@ -192,11 +192,11 @@ int main(int argc, char** argv)
 
         int quit = 0;
         SDL_Event event;
+        bool something_new = TRUE;
         while(!quit)
         {
           SDL_Delay(10);
 
-          bool something_new = FALSE;
           while (SDL_PollEvent(&event)) {
             something_new = TRUE;
             switch(event.type)
@@ -302,6 +302,8 @@ int main(int argc, char** argv)
             printw("Press Ctrl-c to exit\n");
 
             refresh();
+
+            something_new = FALSE;
           }
 
           if ( getch() == 3 ) // Ctrl-c