From a0d615b003df799e433d83f3eb6972e89f347ccf Mon Sep 17 00:00:00 2001
From: Justin Severn <275836311+pinklightultra@users.noreply.github.com>
Date: Sun, 25 Oct 2026 10:12:43 -0400
Subject: [PATCH] fix(sdl2): use SDL_WINDOW_FULLSCREEN_DESKTOP and disable
 windowed mode on fullscreen

---
 sources/Adapters/SDL2/GUI/SDLGUIWindowImp.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sources/Adapters/SDL2/GUI/SDLGUIWindowImp.cpp b/sources/Adapters/SDL2/GUI/SDLGUIWindowImp.cpp
index dec7b1f9..6904af86 100644
--- a/sources/Adapters/SDL2/GUI/SDLGUIWindowImp.cpp
+++ b/sources/Adapters/SDL2/GUI/SDLGUIWindowImp.cpp
@@ -70,6 +70,7 @@ SDLGUIWindowImp::SDLGUIWindowImp(GUICreateWindowParams &p) {
     const char *fullscreenValue = Config::GetInstance()->GetValue("FULLSCREEN");
     if ((fullscreenValue) && (!strcmp(fullscreenValue, "YES"))) {
         fullscreen = true;
+        windowed_ = false;
     }
 
     if (!strcmp(driverName, "fbcon")) {
@@ -104,7 +105,7 @@ SDLGUIWindowImp::SDLGUIWindowImp(GUICreateWindowParams &p) {
     window_ = SDL_CreateWindow(
         "LittleGPTracker", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
         screenRect_.Width(), screenRect_.Height(),
-        fullscreen ? SDL_WINDOW_FULLSCREEN : SDL_WINDOW_SHOWN);
+        fullscreen ? SDL_WINDOW_FULLSCREEN_DESKTOP : SDL_WINDOW_SHOWN);
     NAssert(window_);
 
     // Compute the x & y offset to locate our app window