From 55073aa7a39c6d9485fa0c1dec854ec654e618d6 Mon Sep 17 00:00:00 2001
From: ocornut <omarcornut@gmail.com>
Date: Tue, 19 Dec 2023 11:22:43 +0100
Subject: [PATCH] Examples; SDL: added missing return values checks from
 SDL_CreateWindow() calls. (#7147)

---
 examples/example_sdl2_directx11/main.cpp    | 6 ++++++
 examples/example_sdl2_opengl2/main.cpp      | 6 ++++++
 examples/example_sdl2_opengl3/main.cpp      | 6 ++++++
 examples/example_sdl2_sdlrenderer2/main.cpp | 5 +++++
 examples/example_sdl2_vulkan/main.cpp       | 5 +++++
 5 files changed, 28 insertions(+)

diff --git a/examples/example_sdl2_directx11/main.cpp b/examples/example_sdl2_directx11/main.cpp
index 7c166059..3275bafd 100644
--- a/examples/example_sdl2_directx11/main.cpp
+++ b/examples/example_sdl2_directx11/main.cpp
@@ -47,6 +47,12 @@ int main(int, char**)
     // Setup window
     SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
     SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+DirectX11 example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
+    if (window == nullptr)
+    {
+        printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
+        return -1;
+    }
+
     SDL_SysWMinfo wmInfo;
     SDL_VERSION(&wmInfo.version);
     SDL_GetWindowWMInfo(window, &wmInfo);
diff --git a/examples/example_sdl2_opengl2/main.cpp b/examples/example_sdl2_opengl2/main.cpp
index e1451a61..efb28edb 100644
--- a/examples/example_sdl2_opengl2/main.cpp
+++ b/examples/example_sdl2_opengl2/main.cpp
@@ -41,6 +41,12 @@ int main(int, char**)
     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
     SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
     SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+OpenGL example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
+    if (window == nullptr)
+    {
+        printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
+        return -1;
+    }
+
     SDL_GLContext gl_context = SDL_GL_CreateContext(window);
     SDL_GL_MakeCurrent(window, gl_context);
     SDL_GL_SetSwapInterval(1); // Enable vsync
diff --git a/examples/example_sdl2_opengl3/main.cpp b/examples/example_sdl2_opengl3/main.cpp
index 344f7452..d748c136 100644
--- a/examples/example_sdl2_opengl3/main.cpp
+++ b/examples/example_sdl2_opengl3/main.cpp
@@ -68,6 +68,12 @@ int main(int, char**)
     SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
     SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
     SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+OpenGL3 example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
+    if (window == nullptr)
+    {
+        printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
+        return -1;
+    }
+
     SDL_GLContext gl_context = SDL_GL_CreateContext(window);
     SDL_GL_MakeCurrent(window, gl_context);
     SDL_GL_SetSwapInterval(1); // Enable vsync
diff --git a/examples/example_sdl2_sdlrenderer2/main.cpp b/examples/example_sdl2_sdlrenderer2/main.cpp
index bc7603ee..bfba8fa6 100644
--- a/examples/example_sdl2_sdlrenderer2/main.cpp
+++ b/examples/example_sdl2_sdlrenderer2/main.cpp
@@ -38,6 +38,11 @@ int main(int, char**)
     // Create window with SDL_Renderer graphics context
     SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
     SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+SDL_Renderer example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
+    if (window == nullptr)
+    {
+        printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
+        return -1;
+    }
     SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED);
     if (renderer == nullptr)
     {
diff --git a/examples/example_sdl2_vulkan/main.cpp b/examples/example_sdl2_vulkan/main.cpp
index 3163446f..bbd9eec4 100644
--- a/examples/example_sdl2_vulkan/main.cpp
+++ b/examples/example_sdl2_vulkan/main.cpp
@@ -385,6 +385,11 @@ int main(int, char**)
     // Create window with Vulkan graphics context
     SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
     SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+Vulkan example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
+    if (window == nullptr)
+    {
+        printf("Error: SDL_CreateWindow(): %s\n", SDL_GetError());
+        return -1;
+    }
 
     ImVector<const char*> extensions;
     uint32_t extensions_count = 0;