Backends+Examples: SDL2: renamed imgui_impl_sdl.cpp/.h to imgui_impl_sdl2.cpp/.h. (#6146)

+ CI: Update Windows CI to update SDL 2.26.3 instead of 2.0.10

.github/workflows/build.yml

@@ -26,9 +26,9 @@ jobs:
       - name: Install Dependencies
         shell: powershell
         run: |
-          Invoke-WebRequest -Uri "https://www.libsdl.org/release/SDL2-devel-2.0.10-VC.zip" -OutFile "SDL2-devel-2.0.10-VC.zip"
+          Invoke-WebRequest -Uri "https://www.libsdl.org/release/SDL2-devel-2.26.3-VC.zip" -OutFile "SDL2-devel-2.26.3-VC.zip"
-          Expand-Archive -Path SDL2-devel-2.0.10-VC.zip
+          Expand-Archive -Path SDL2-devel-2.26.3-VC.zip
-          echo "SDL2_DIR=$(pwd)\SDL2-devel-2.0.10-VC\SDL2-2.0.10\" >>${env:GITHUB_ENV}
+          echo "SDL2_DIR=$(pwd)\SDL2-devel-2.26.3-VC\SDL2-2.26.3\" >>${env:GITHUB_ENV}
 
           Invoke-WebRequest -Uri "https://github.com/ocornut/imgui/files/3789205/vulkan-sdk-1.1.121.2.zip" -OutFile vulkan-sdk-1.1.121.2.zip
           Expand-Archive -Path vulkan-sdk-1.1.121.2.zip
@@ -123,23 +123,23 @@ jobs:
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_vulkan/example_glfw_vulkan.vcxproj /p:Platform=Win32 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build Win32 example_sdl_vulkan
+      - name: Build Win32 example_sdl2_vulkan
         shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl_vulkan/example_sdl_vulkan.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_vulkan/example_sdl2_vulkan.vcxproj /p:Platform=Win32 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build Win32 example_sdl_opengl2
+      - name: Build Win32 example_sdl2_opengl2
         shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl_opengl2/example_sdl_opengl2.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj /p:Platform=Win32 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build Win32 example_sdl_opengl3
+      - name: Build Win32 example_sdl2_opengl3
         shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl_opengl3/example_sdl_opengl3.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_opengl3/example_sdl2_opengl3.vcxproj /p:Platform=Win32 /p:Configuration=Release'
 
-      - name: Build Win32 example_sdl_directx11
+      - name: Build Win32 example_sdl2_directx11
         shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl_directx11/example_sdl_directx11.vcxproj /p:Platform=Win32 /p:Configuration=Release'
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_directx11/example_sdl2_directx11.vcxproj /p:Platform=Win32 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
       - name: Build Win32 example_win32_directx9
@@ -168,24 +168,24 @@ jobs:
         shell: cmd
         run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_glfw_vulkan/example_glfw_vulkan.vcxproj /p:Platform=x64 /p:Configuration=Release'
 
-      - name: Build x64 example_sdl_vulkan
+      - name: Build x64 example_sdl2_vulkan
         shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl_vulkan/example_sdl_vulkan.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_vulkan/example_sdl2_vulkan.vcxproj /p:Platform=x64 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build x64 example_sdl_opengl2
+      - name: Build x64 example_sdl2_opengl2
         shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl_opengl2/example_sdl_opengl2.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj /p:Platform=x64 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build x64 example_sdl_opengl3
+      - name: Build x64 example_sdl2_opengl3
         shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl_opengl3/example_sdl_opengl3.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_opengl3/example_sdl2_opengl3.vcxproj /p:Platform=x64 /p:Configuration=Release'
         if: github.event_name == 'workflow_run'
 
-      - name: Build x64 example_sdl_directx11
+      - name: Build x64 example_sdl2_directx11
         shell: cmd
-        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl_directx11/example_sdl_directx11.vcxproj /p:Platform=x64 /p:Configuration=Release'
+        run: '"%MSBUILD_PATH%\MSBuild.exe" examples/example_sdl2_directx11/example_sdl2_directx11.vcxproj /p:Platform=x64 /p:Configuration=Release'
 
       - name: Build x64 example_win32_directx9
         shell: cmd
@@ -389,12 +389,12 @@ jobs:
       run: make -C examples/example_glfw_opengl3
       if: github.event_name == 'workflow_run'
 
-    - name: Build example_sdl_opengl2
+    - name: Build example_sdl2_opengl2
-      run: make -C examples/example_sdl_opengl2
+      run: make -C examples/example_sdl2_opengl2
       if: github.event_name == 'workflow_run'
 
-    - name: Build example_sdl_opengl3
+    - name: Build example_sdl2_opengl3
-      run: make -C examples/example_sdl_opengl3
+      run: make -C examples/example_sdl2_opengl3
 
     - name: Build with IMGUI_IMPL_VULKAN_NO_PROTOTYPES
       run: g++ -c -I. -std=c++11 -DIMGUI_IMPL_VULKAN_NO_PROTOTYPES=1 backends/imgui_impl_vulkan.cpp
@@ -443,15 +443,15 @@ jobs:
     - name: Build example_glfw_metal
       run: make -C examples/example_glfw_metal
 
-    - name: Build example_sdl_metal
+    - name: Build example_sdl2_metal
-      run: make -C examples/example_sdl_metal
+      run: make -C examples/example_sdl2_metal
 
-    - name: Build example_sdl_opengl2
+    - name: Build example_sdl2_opengl2
-      run: make -C examples/example_sdl_opengl2
+      run: make -C examples/example_sdl2_opengl2
       if: github.event_name == 'workflow_run'
 
-    - name: Build example_sdl_opengl3
+    - name: Build example_sdl2_opengl3
-      run: make -C examples/example_sdl_opengl3
+      run: make -C examples/example_sdl2_opengl3
 
     - name: Build example_apple_metal
       run: xcodebuild -project examples/example_apple_metal/example_apple_metal.xcodeproj -target example_apple_metal_macos
@@ -482,12 +482,12 @@ jobs:
         emsdk-master/emsdk install latest
         emsdk-master/emsdk activate latest
 
-    - name: Build example_sdl_opengl3 with Emscripten
+    - name: Build example_sdl2_opengl3 with Emscripten
       run: |
         pushd emsdk-master
         source ./emsdk_env.sh
         popd
-        make -C examples/example_sdl_opengl3 -f Makefile.emscripten
+        make -C examples/example_sdl2_opengl3 -f Makefile.emscripten
 
     - name: Build example_emscripten_wgpu
       run: |

.gitignore

@@ -41,7 +41,7 @@ examples/*.o.tmp
 examples/*.out.js
 examples/*.out.wasm
 examples/example_glfw_opengl3/web/*
-examples/example_sdl_opengl3/web/*
+examples/example_sdl2_opengl3/web/*
 examples/example_emscripten_wgpu/web/*
 
 ## JetBrains IDE artifacts
@@ -54,7 +54,7 @@ examples/example_glfw_opengl2/example_glfw_opengl2
 examples/example_glfw_opengl3/example_glfw_opengl3
 examples/example_glut_opengl2/example_glut_opengl2
 examples/example_null/example_null
-examples/example_sdl_metal/example_sdl_metal
+examples/example_sdl2_metal/example_sdl2_metal
-examples/example_sdl_opengl2/example_sdl_opengl2
+examples/example_sdl2_opengl2/example_sdl2_opengl2
-examples/example_sdl_opengl3/example_sdl_opengl3
+examples/example_sdl2_opengl3/example_sdl2_opengl3
-examples/example_sdl_sdlrenderer/example_sdl_sdlrenderer
+examples/example_sdl2_sdlrenderer/example_sdl2_sdlrenderer

backends/imgui_impl_sdl2.cpp

@@ -18,6 +18,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2023-02-07: *BREAKING CHANGE* Renamed this backend file from imgui_impl_sdl.cpp/.h to imgui_impl_sdl2.cpp/.h in prevision for the future release of SDL3.
 //  2023-02-02: Avoid calling SDL_SetCursor() when cursor has not changed, as the function is surprisingly costly on Mac with latest SDL (may be fixed in next SDL version).
 //  2023-02-02: Added support for SDL 2.0.18+ preciseX/preciseY mouse wheel data for smooth scrolling + Scaling X value on Emscripten (bug?). (#4019, #6096)
 //  2023-02-02: Removed SDL_MOUSEWHEEL value clamping, as values seem correct in latest Emscripten. (#4019)
@@ -68,7 +69,7 @@
 //  2016-10-15: Misc: Added a void* user_data parameter to Clipboard function handlers.
 
 #include "imgui.h"
-#include "imgui_impl_sdl.h"
+#include "imgui_impl_sdl2.h"
 
 // SDL
 #include <SDL.h>
@@ -349,7 +350,7 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer)
     // Setup backend capabilities flags
     ImGui_ImplSDL2_Data* bd = IM_NEW(ImGui_ImplSDL2_Data)();
     io.BackendPlatformUserData = (void*)bd;
-    io.BackendPlatformName = "imgui_impl_sdl";
+    io.BackendPlatformName = "imgui_impl_sdl2";
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;       // We can honor GetMouseCursor() values (optional)
     io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;        // We can honor io.WantSetMousePos requests (optional, rarely used)
 

docs/BACKENDS.md

@@ -6,7 +6,7 @@ _(You may browse this at https://github.com/ocornut/imgui/blob/master/docs/BACKE
 your application or engine to easily integrate Dear ImGui.** Each backend is typically self-contained in a pair of files: imgui_impl_XXXX.cpp + imgui_impl_XXXX.h.
 
 - The 'Platform' backends are in charge of: mouse/keyboard/gamepad inputs, cursor shape, timing, and windowing.<BR>
-  e.g. Windows ([imgui_impl_win32.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_win32.cpp)), GLFW ([imgui_impl_glfw.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_glfw.cpp)), SDL2 ([imgui_impl_sdl.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_sdl.cpp)), etc.
+  e.g. Windows ([imgui_impl_win32.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_win32.cpp)), GLFW ([imgui_impl_glfw.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_glfw.cpp)), SDL2 ([imgui_impl_sdl2.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_sdl2.cpp)), etc.
 
 - The 'Renderer' backends are in charge of: creating atlas texture, and rendering imgui draw data.<BR>
   e.g. DirectX11 ([imgui_impl_dx11.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_dx11.cpp)), OpenGL/WebGL ([imgui_impl_opengl3.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_opengl3.cpp)), Vulkan ([imgui_impl_vulkan.cpp](https://github.com/ocornut/imgui/blob/master/backends/imgui_impl_vulkan.cpp)), etc.
@@ -62,7 +62,7 @@ List of Platforms Backends:
     imgui_impl_android.cpp    ; Android native app API
     imgui_impl_glfw.cpp       ; GLFW (Windows, macOS, Linux, etc.) http://www.glfw.org/
     imgui_impl_osx.mm         ; macOS native API (not as feature complete as glfw/sdl backends)
-    imgui_impl_sdl.cpp        ; SDL2 (Windows, macOS, Linux, iOS, Android) https://www.libsdl.org
+    imgui_impl_sdl2.cpp       ; SDL2 (Windows, macOS, Linux, iOS, Android) https://www.libsdl.org
     imgui_impl_win32.cpp      ; Win32 native API (Windows)
     imgui_impl_glut.cpp       ; GLUT/FreeGLUT (this is prehistoric software and absolutely not recommended today!)
 
@@ -83,8 +83,8 @@ List of high-level Frameworks Backends (combining Platform + Renderer):
 
     imgui_impl_allegro5.cpp
 
-Emscripten is also supported.
+Emscripten is also supported!
-The [example_emscripten_opengl3](https://github.com/ocornut/imgui/tree/master/examples/example_emscripten_opengl3) app uses imgui_impl_sdl.cpp + imgui_impl_opengl3.cpp, but other combos are possible.
+The SDL+GL, GLFW+GL and SDL+WebGPU examples are all ready to build and run with Emscripten.
 
 ### Backends for third-party frameworks, graphics API or other languages
 
@@ -97,7 +97,7 @@ If you are not sure which backend to use, the recommended platform/frameworks fo
 |Library |Website |Backend |Note |
 |--------|--------|--------|-----|
 | GLFW | https://github.com/glfw/glfw | imgui_impl_glfw.cpp | |
-| SDL2 | https://www.libsdl.org | imgui_impl_sdl.cpp | |
+| SDL2 | https://www.libsdl.org | imgui_impl_sdl2.cpp | |
 | Sokol | https://github.com/floooh/sokol | [util/sokol_imgui.h](https://github.com/floooh/sokol/blob/master/util/sokol_imgui.h) | Lower-level than GLFW/SDL |
 
 

docs/CHANGELOG.txt

@@ -35,6 +35,14 @@ HOW TO UPDATE?
  VERSION 1.89.3 (In Progress)
 -----------------------------------------------------------------------
 
+Breaking Changes:
+
+- Backends+Examples: SDL2: renamed all unnumbered references to "sdl" to "sdl2".
+  This is in prevision for the future release of SDL3 (#6146)
+  - imgui_impl_sdl.cpp -> imgui_impl_sdl2.cpp
+  - imgui_impl_sdl.h   -> imgui_impl_sdl2.h
+  - example_sdl_xxxx/  -> example_sdl2_xxxx/ (folders and projects)
+
 All changes:
 
 - Inputs, Scrolling: Made horizontal scroll wheel and horizontal scroll direction consistent
@@ -83,12 +91,12 @@ All changes:
   hasPreciseScrollingDeltas==false (e.g. non-Apple mices).
 - Backends: Win32: flipping WM_MOUSEHWHEEL value to match other backends and
   offer consistent horizontal scrolling direction. (#4019)
-- Backends: SDL: flipping SDL_MOUSEWHEEL 'wheel.x' value to match other backends and
+- Backends: SDL2: flipping SDL_MOUSEWHEEL 'wheel.x' value to match other backends and
   offer consistent horizontal scrolling direction. (#4019)
-- Backends: SDL: Removed SDL_MOUSEWHEEL value clamping. (#4019, #6096, #6081)
+- Backends: SDL2: Removed SDL_MOUSEWHEEL value clamping. (#4019, #6096, #6081)
-- Backends: SDL: Added support for SDL 2.0.18+ preciseX/preciseY mouse wheel data
+- Backends: SDL2: Added support for SDL 2.0.18+ preciseX/preciseY mouse wheel data
   for smooth scrolling as reported by SDL. (#4019, #6096)
-- Backends: SDL: Avoid calling SDL_SetCursor() when cursor has not changed, as the function
+- Backends: SDL2: Avoid calling SDL_SetCursor() when cursor has not changed, as the function
   is surprisingly costly on Mac with latest SDL (may be fixed in next SDL version). (#6113)
 - Backends: GLFW: Registering custom low-level mouse wheel handler to get more accurate
   scrolling impulses on Emscripten. (#4019, #6096) [@ocornut, @wolfpld, @tolopolarity]
@@ -97,13 +105,13 @@ All changes:
   the 'window' parameter. (#6142)
 - Backends: WebGPU: Fix building for latest WebGPU specs (remove implicit layout generation).
   (#6117, #4116, #3632) [@tonygrue, @bfierz]
-- Examples: refactored SDL+GL and GLFW+GL examples to compile with Emscripten.
+- Examples: refactored SDL2+GL and GLFW+GL examples to compile with Emscripten.
   (#2492, #2494, #3699, #3705) [@ocornut, @nicolasnoble]
   The dedicated example_emscripten_opengl3/ has been removed.
 - Examples: Win32: Fixed examples using RegisterClassW() since 1.89 to also call
   DefWindowProcW() instead of DefWindowProc() so that title text are correctly converted
   when application is compiled without /DUNICODE. (#5725, #5961, #5975) [@markreidvfx]
-- Examples: SDL+SDL_Renderer: Added call to SDL_RenderSetScale() to display is correct on a
+- Examples: SDL2+SDL_Renderer: Added call to SDL_RenderSetScale() to display is correct on a
   Retina display (albeit lower-res as our other unmodified examples). (#6121, #6065, #5931).
 
 

docs/EXAMPLES.md

@@ -107,7 +107,7 @@ OSX + OpenGL2 example. <BR>
 [example_emscripten_wgpu/](https://github.com/ocornut/imgui/blob/master/examples/example_emscripten_wgpu/) <BR>
 Emcripten + GLFW + WebGPU example. <BR>
 = main.cpp + imgui_impl_glfw.cpp + imgui_impl_wgpu.cpp
-Note that the 'example_glfw_opengl3' and 'example_sdl_opengl3' examples also supports Emscripten!
+Note that the 'example_glfw_opengl3' and 'example_sdl2_opengl3' examples also supports Emscripten!
 
 [example_glfw_metal/](https://github.com/ocornut/imgui/blob/master/examples/example_glfw_metal/) <BR>
 GLFW (Mac) + Metal example. <BR>
@@ -146,40 +146,40 @@ Null example, compile and link imgui, create context, run headless with no input
 This is used to quickly test compilation of core imgui files in as many setups as possible.
 Because this application doesn't create a window nor a graphic context, there's no graphics output.
 
-[example_sdl_directx11/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl_directx11/) <BR>
+[example_sdl2_directx11/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_directx11/) <BR>
 SDL2 + DirectX11 example, Windows only. <BR>
-= main.cpp + imgui_impl_sdl.cpp + imgui_impl_dx11.cpp <BR>
+= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_dx11.cpp <BR>
-This to demonstrate usage of DirectX with SDL.
+This to demonstrate usage of DirectX with SDL2.
 
-[example_sdl_metal/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl_metal/) <BR>
+[example_sdl2_metal/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_metal/) <BR>
-SDL2 (Mac) + Metal example. <BR>
+SDL2 + Metal example, Mac only. <BR>
-= main.mm + imgui_impl_sdl.cpp + imgui_impl_metal.mm
+= main.mm + imgui_impl_sdl2.cpp + imgui_impl_metal.mm
 
-[example_sdl_opengl2/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl_opengl2/) <BR>
+[example_sdl2_opengl2/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_opengl2/) <BR>
 SDL2 (Win32, Mac, Linux etc.) + OpenGL example (legacy, fixed pipeline). <BR>
-= main.cpp + imgui_impl_sdl.cpp + imgui_impl_opengl2.cpp <BR>
+= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_opengl2.cpp <BR>
 **DO NOT USE OPENGL2 CODE IF YOUR CODE/ENGINE IS USING GL OR WEBGL (SHADERS, VBO, VAO, etc.)** <BR>
 This code is mostly provided as a reference to learn about Dear ImGui integration, because it is shorter.
 If your code is using GL3+ context or any semi modern GL calls, using this renderer is likely to
 make things more complicated, will require your code to reset many GL attributes to their initial
 state, and might confuse your GPU driver. One star, not recommended.
 
-[example_sdl_opengl3/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl_opengl3/) <BR>
+[example_sdl2_opengl3/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_opengl3/) <BR>
 SDL2 (Win32, Mac, Linux, etc.) + OpenGL3+/ES2/ES3 example. <BR>
-= main.cpp + imgui_impl_sdl.cpp + imgui_impl_opengl3.cpp <BR>
+= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_opengl3.cpp <BR>
 This uses more modern GL calls and custom shaders. <BR>
 This support building with Emscripten and targetting WebGL.<BR>
 Prefer using that if you are using modern GL or WebGL in your application.
 
-[example_sdl_sdlrenderer/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl_sdlrenderer/) <BR>
+[example_sdl2_sdlrenderer/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_sdlrenderer/) <BR>
 SDL2 (Win32, Mac, Linux, etc.) + SDL_Renderer (most graphics backends are supported underneath) <BR>
-= main.cpp + imgui_impl_sdl.cpp + imgui_impl_sdlrenderer.cpp <BR>
+= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_sdlrenderer.cpp <BR>
 This requires SDL 2.0.18+ (released November 2021) <BR>
 We do not really recommend using SDL_Renderer as it is a rather primitive API.
 
-[example_sdl_vulkan/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl_vulkan/) <BR>
+[example_sdl2_vulkan/](https://github.com/ocornut/imgui/blob/master/examples/example_sdl2_vulkan/) <BR>
 SDL2 (Win32, Mac, Linux, etc.) + Vulkan example. <BR>
-= main.cpp + imgui_impl_sdl.cpp + imgui_impl_vulkan.cpp <BR>
+= main.cpp + imgui_impl_sdl2.cpp + imgui_impl_vulkan.cpp <BR>
 This is quite long and tedious, because: Vulkan. <BR>
 For this example, the main.cpp file exceptionally use helpers function from imgui_impl_vulkan.h/cpp.
 

examples/example_apple_metal/README.md

@@ -4,7 +4,7 @@
 
 This example shows how to integrate Dear ImGui with Metal. It is based on the "cross-platform" game template provided with Xcode as of Xcode 9.
 
-Consider basing your work off the example_glfw_metal/ or example_sdl_metal/ examples. They are better supported and will be portable unlike this one.
+Consider basing your work off the example_glfw_metal/ or example_sdl2_metal/ examples. They are better supported and will be portable unlike this one.
 
 
 

examples/example_sdl2_directx11/build_win32.bat

@@ -1,8 +1,8 @@
 @REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
 @set OUT_DIR=Debug
-@set OUT_EXE=example_sdl_directx11
+@set OUT_EXE=example_sdl2_directx11
 @set INCLUDES=/I..\.. /I..\..\backends /I%SDL2_DIR%\include /I "%WindowsSdkDir%Include\um" /I "%WindowsSdkDir%Include\shared" /I "%DXSDK_DIR%Include"
-@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl.cpp ..\..\backends\imgui_impl_dx11.cpp ..\..\imgui*.cpp
+@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_dx11.cpp ..\..\imgui*.cpp
 @set LIBS=/LIBPATH:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib /LIBPATH:"%DXSDK_DIR%/Lib/x86" d3d11.lib d3dcompiler.lib shell32.lib
 mkdir %OUT_DIR%
 cl /nologo /Zi /MD %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS% /subsystem:console

examples/example_sdl2_directx11/example_sdl2_directx11.vcxproj

@@ -20,9 +20,9 @@
   </ItemGroup>
   <PropertyGroup Label="Globals">
     <ProjectGuid>{9E1987E3-1F19-45CA-B9C9-D31E791836D8}</ProjectGuid>
-    <RootNamespace>example_sdl_directx11</RootNamespace>
+    <RootNamespace>example_sdl2_directx11</RootNamespace>
     <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
-    <ProjectName>example_sdl_directx11</ProjectName>
+    <ProjectName>example_sdl2_directx11</ProjectName>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
@@ -161,16 +161,16 @@
     <ClCompile Include="..\..\imgui_draw.cpp" />
     <ClCompile Include="..\..\imgui_tables.cpp" />
     <ClCompile Include="..\..\imgui_widgets.cpp" />
+    <ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp" />
     <ClCompile Include="..\..\backends\imgui_impl_dx11.cpp" />
-    <ClCompile Include="..\..\backends\imgui_impl_sdl.cpp" />
     <ClCompile Include="main.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\imconfig.h" />
     <ClInclude Include="..\..\imgui.h" />
     <ClInclude Include="..\..\imgui_internal.h" />
+    <ClInclude Include="..\..\backends\imgui_impl_sdl2.h" />
     <ClInclude Include="..\..\backends\imgui_impl_dx11.h" />
-    <ClInclude Include="..\..\backends\imgui_impl_sdl.h" />
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\misc\debuggers\imgui.natvis" />
@@ -179,4 +179,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>

examples/example_sdl2_directx11/example_sdl2_directx11.vcxproj.filters

@@ -18,10 +18,10 @@
     <ClInclude Include="..\..\imgui_internal.h">
       <Filter>imgui</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\backends\imgui_impl_dx11.h">
+    <ClInclude Include="..\..\backends\imgui_impl_sdl2.h">
       <Filter>sources</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\backends\imgui_impl_sdl.h">
+    <ClInclude Include="..\..\backends\imgui_impl_dx11.h">
       <Filter>sources</Filter>
     </ClInclude>
   </ItemGroup>
@@ -44,10 +44,10 @@
     <ClCompile Include="..\..\imgui_widgets.cpp">
       <Filter>imgui</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\backends\imgui_impl_dx11.cpp">
+    <ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp">
       <Filter>sources</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\backends\imgui_impl_sdl.cpp">
+    <ClCompile Include="..\..\backends\imgui_impl_dx11.cpp">
       <Filter>sources</Filter>
     </ClCompile>
   </ItemGroup>
@@ -57,4 +57,4 @@
       <Filter>imgui</Filter>
     </None>
   </ItemGroup>
-</Project>
+</Project>

examples/example_sdl2_directx11/main.cpp

@@ -4,7 +4,7 @@
 // Read online: https://github.com/ocornut/imgui/tree/master/docs
 
 #include "imgui.h"
-#include "imgui_impl_sdl.h"
+#include "imgui_impl_sdl2.h"
 #include "imgui_impl_dx11.h"
 #include <d3d11.h>
 #include <stdio.h>

examples/example_sdl2_metal/Makefile

@@ -6,11 +6,11 @@
 #CXX = g++
 #CXX = clang++
 
-EXE = example_sdl_metal
+EXE = example_sdl2_metal
 IMGUI_DIR = ../..
 SOURCES = main.mm
 SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
-SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl.cpp $(IMGUI_DIR)/backends/imgui_impl_metal.mm
+SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl2.cpp $(IMGUI_DIR)/backends/imgui_impl_metal.mm
 OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
 
 LIBS = -framework Metal -framework MetalKit -framework Cocoa -framework IOKit -framework CoreVideo -framework QuartzCore

examples/example_sdl2_metal/main.mm

@@ -4,7 +4,7 @@
 // Read online: https://github.com/ocornut/imgui/tree/master/docs
 
 #include "imgui.h"
-#include "imgui_impl_sdl.h"
+#include "imgui_impl_sdl2.h"
 #include "imgui_impl_metal.h"
 #include <stdio.h>
 #include <SDL.h>

examples/example_sdl2_opengl2/Makefile

@@ -14,11 +14,11 @@
 #CXX = g++
 #CXX = clang++
 
-EXE = example_sdl_opengl2
+EXE = example_sdl2_opengl2
 IMGUI_DIR = ../..
 SOURCES = main.cpp
 SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
-SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl2.cpp
+SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl2.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl2.cpp
 OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
 UNAME_S := $(shell uname -s)
 

examples/example_sdl2_opengl2/README.md

@@ -0,0 +1,29 @@
+
+# How to Build
+
+- On Windows with Visual Studio's IDE
+
+Use the provided project file (.vcxproj). Add to solution (imgui_examples.sln) if necessary.
+
+- On Windows with Visual Studio's CLI
+
+```
+set SDL2_DIR=path_to_your_sdl2_folder
+cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_opengl2.cpp ..\..\imgui*.cpp /FeDebug/example_sdl2_opengl2.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
+#          ^^ include paths                  ^^ source files                                                            ^^ output exe                    ^^ output dir   ^^ libraries
+# or for 64-bit:
+cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_opengl2.cpp ..\..\imgui*.cpp /FeDebug/example_sdl2_opengl2.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
+```
+
+- On Linux and similar Unixes
+
+```
+c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends main.cpp ../../backends/imgui_impl_sdl2.cpp ../../backends/imgui_impl_opengl2.cpp ../../imgui*.cpp `sdl2-config --libs` -lGL
+```
+
+- On Mac OS X
+
+```
+brew install sdl2
+c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends main.cpp ../../backends/imgui_impl_sdl2.cpp ../../backends/imgui_impl_opengl2.cpp ../../imgui*.cpp `sdl2-config --libs` -framework OpenGl
+```

examples/example_sdl2_opengl2/build_win32.bat

@@ -1,8 +1,8 @@
 @REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
 @set OUT_DIR=Debug
-@set OUT_EXE=example_sdl_opengl2
+@set OUT_EXE=example_sdl2_opengl2
 @set INCLUDES=/I..\.. /I..\..\backends /I%SDL2_DIR%\include
-@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl.cpp ..\..\backends\imgui_impl_opengl2.cpp ..\..\imgui*.cpp
+@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_opengl2.cpp ..\..\imgui*.cpp
 @set LIBS=/LIBPATH:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib shell32.lib
 mkdir %OUT_DIR%
 cl /nologo /Zi /MD %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS% /subsystem:console

examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj

@@ -20,7 +20,7 @@
   </ItemGroup>
   <PropertyGroup Label="Globals">
     <ProjectGuid>{2AE17FDE-F7F3-4CAC-ADAB-0710EDA4F741}</ProjectGuid>
-    <RootNamespace>example_sdl_opengl2</RootNamespace>
+    <RootNamespace>example_sdl2_opengl2</RootNamespace>
     <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
@@ -160,16 +160,16 @@
     <ClCompile Include="..\..\imgui_draw.cpp" />
     <ClCompile Include="..\..\imgui_tables.cpp" />
     <ClCompile Include="..\..\imgui_widgets.cpp" />
+    <ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp" />
     <ClCompile Include="..\..\backends\imgui_impl_opengl2.cpp" />
-    <ClCompile Include="..\..\backends\imgui_impl_sdl.cpp" />
     <ClCompile Include="main.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\imconfig.h" />
     <ClInclude Include="..\..\imgui.h" />
     <ClInclude Include="..\..\imgui_internal.h" />
+    <ClInclude Include="..\..\backends\imgui_impl_sdl2.h" />
     <ClInclude Include="..\..\backends\imgui_impl_opengl2.h" />
-    <ClInclude Include="..\..\backends\imgui_impl_sdl.h" />
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\misc\debuggers\imgui.natvis" />
@@ -178,4 +178,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>

examples/example_sdl2_opengl2/example_sdl2_opengl2.vcxproj.filters

@@ -28,7 +28,7 @@
     <ClCompile Include="..\..\imgui_widgets.cpp">
       <Filter>imgui</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\backends\imgui_impl_sdl.cpp">
+    <ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp">
       <Filter>sources</Filter>
     </ClCompile>
     <ClCompile Include="..\..\backends\imgui_impl_opengl2.cpp">
@@ -48,7 +48,7 @@
     <ClInclude Include="..\..\backends\imgui_impl_opengl2.h">
       <Filter>sources</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\backends\imgui_impl_sdl.h">
+    <ClInclude Include="..\..\backends\imgui_impl_sdl2.h">
       <Filter>sources</Filter>
     </ClInclude>
   </ItemGroup>
@@ -58,4 +58,4 @@
       <Filter>imgui</Filter>
     </None>
   </ItemGroup>
-</Project>
+</Project>

examples/example_sdl2_opengl2/main.cpp

@@ -4,11 +4,11 @@
 // Read online: https://github.com/ocornut/imgui/tree/master/docs
 
 // **DO NOT USE THIS CODE IF YOUR CODE/ENGINE IS USING MODERN OPENGL (SHADERS, VBO, VAO, etc.)**
-// **Prefer using the code in the example_sdl_opengl3/ folder**
+// **Prefer using the code in the example_sdl2_opengl3/ folder**
-// See imgui_impl_sdl.cpp for details.
+// See imgui_impl_sdl2.cpp for details.
 
 #include "imgui.h"
-#include "imgui_impl_sdl.h"
+#include "imgui_impl_sdl2.h"
 #include "imgui_impl_opengl2.h"
 #include <stdio.h>
 #include <SDL.h>

examples/example_sdl2_opengl3/Makefile

@@ -14,11 +14,11 @@
 #CXX = g++
 #CXX = clang++
 
-EXE = example_sdl_opengl3
+EXE = example_sdl2_opengl3
 IMGUI_DIR = ../..
 SOURCES = main.cpp
 SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
-SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl3.cpp
+SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl2.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl3.cpp
 OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
 UNAME_S := $(shell uname -s)
 LINUX_GL_LIBS = -lGL

examples/example_sdl2_opengl3/Makefile.emscripten

@@ -20,7 +20,7 @@ EXE = $(WEB_DIR)/index.html
 IMGUI_DIR = ../..
 SOURCES = main.cpp
 SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
-SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl3.cpp
+SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl2.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl3.cpp
 OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
 UNAME_S := $(shell uname -s)
 CPPFLAGS =

examples/example_sdl2_opengl3/README.md

@@ -10,10 +10,10 @@ Use the provided project file (.vcxproj). Add to solution (imgui_examples.sln) i
 Use build_win32.bat or directly:
 ```
 set SDL2_DIR=path_to_your_sdl2_folder
-cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp /FeDebug/example_sdl_opengl3.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
+cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp /FeDebug/example_sdl2_opengl3.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
-#          ^^ include paths                  ^^ source files                                                                                   ^^ output exe                    ^^ output dir   ^^ libraries
+#          ^^ include paths                  ^^ source files                                                                                    ^^ output exe                    ^^ output dir   ^^ libraries
 # or for 64-bit:
-cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp /FeDebug/example_sdl_opengl3.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
+cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp /FeDebug/example_sdl2_opengl3.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
 ```
 
 ## Linux and similar Unixes
@@ -21,7 +21,7 @@ cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_
 Use our Makefile or directly:
 ```
 c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends
-  main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl3.cpp ../../imgui*.cpp
+  main.cpp ../../backends/imgui_impl_sdl2.cpp ../../backends/imgui_impl_opengl3.cpp ../../imgui*.cpp
   `sdl2-config --libs` -lGL -ldl
 ```
 
@@ -31,7 +31,7 @@ Use our Makefile or directly:
 ```
 brew install sdl2
 c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends
-  main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl3.cpp ../../imgui*.cpp
+  main.cpp ../../backends/imgui_impl_sdl2.cpp ../../backends/imgui_impl_opengl3.cpp ../../imgui*.cpp
   `sdl2-config --libs` -framework OpenGl -framework CoreFoundation
 ```
 

examples/example_sdl2_opengl3/build_win32.bat

@@ -1,8 +1,8 @@
 @REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
 @set OUT_DIR=Debug
-@set OUT_EXE=example_sdl_opengl3
+@set OUT_EXE=example_sdl2_opengl3
 @set INCLUDES=/I..\.. /I..\..\backends /I%SDL2_DIR%\include
-@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp
+@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp
 @set LIBS=/LIBPATH:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib shell32.lib
 mkdir %OUT_DIR%
 cl /nologo /Zi /MD %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS% /subsystem:console

examples/example_sdl2_opengl3/example_sdl2_opengl3.vcxproj

@@ -20,7 +20,7 @@
   </ItemGroup>
   <PropertyGroup Label="Globals">
     <ProjectGuid>{BBAEB705-1669-40F3-8567-04CF6A991F4C}</ProjectGuid>
-    <RootNamespace>example_sdl_opengl3</RootNamespace>
+    <RootNamespace>example_sdl2_opengl3</RootNamespace>
     <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
@@ -160,17 +160,17 @@
     <ClCompile Include="..\..\imgui_draw.cpp" />
     <ClCompile Include="..\..\imgui_tables.cpp" />
     <ClCompile Include="..\..\imgui_widgets.cpp" />
+    <ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp" />
     <ClCompile Include="..\..\backends\imgui_impl_opengl3.cpp" />
-    <ClCompile Include="..\..\backends\imgui_impl_sdl.cpp" />
     <ClCompile Include="main.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\imconfig.h" />
     <ClInclude Include="..\..\imgui.h" />
     <ClInclude Include="..\..\imgui_internal.h" />
+    <ClInclude Include="..\..\backends\imgui_impl_sdl2.h" />
     <ClInclude Include="..\..\backends\imgui_impl_opengl3.h" />
     <ClInclude Include="..\..\backends\imgui_impl_opengl3_loader.h" />
-    <ClInclude Include="..\..\backends\imgui_impl_sdl.h" />
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\misc\debuggers\imgui.natvis" />

examples/example_sdl2_opengl3/example_sdl2_opengl3.vcxproj.filters

@@ -22,10 +22,10 @@
     <ClCompile Include="main.cpp">
       <Filter>sources</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\backends\imgui_impl_opengl3.cpp">
+    <ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp">
       <Filter>sources</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\backends\imgui_impl_sdl.cpp">
+    <ClCompile Include="..\..\backends\imgui_impl_opengl3.cpp">
       <Filter>sources</Filter>
     </ClCompile>
     <ClCompile Include="..\..\imgui_tables.cpp">
@@ -45,15 +45,15 @@
     <ClInclude Include="..\..\imgui_internal.h">
       <Filter>imgui</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\backends\imgui_impl_sdl2.h">
+      <Filter>sources</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\backends\imgui_impl_opengl3.h">
       <Filter>sources</Filter>
     </ClInclude>
     <ClInclude Include="..\..\backends\imgui_impl_opengl3_loader.h">
       <Filter>sources</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\backends\imgui_impl_sdl.h">
-      <Filter>sources</Filter>
-    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="..\README.txt" />
@@ -61,4 +61,4 @@
       <Filter>imgui</Filter>
     </None>
   </ItemGroup>
-</Project>
+</Project>

examples/example_sdl2_opengl3/main.cpp

@@ -4,7 +4,7 @@
 // Read online: https://github.com/ocornut/imgui/tree/master/docs
 
 #include "imgui.h"
-#include "imgui_impl_sdl.h"
+#include "imgui_impl_sdl2.h"
 #include "imgui_impl_opengl3.h"
 #include <stdio.h>
 #include <SDL.h>

examples/example_sdl2_sdlrenderer/Makefile

@@ -14,11 +14,11 @@
 #CXX = g++
 #CXX = clang++
 
-EXE = example_sdl_sdlrenderer
+EXE = example_sdl2_sdlrenderer
 IMGUI_DIR = ../..
 SOURCES = main.cpp
 SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
-SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl.cpp $(IMGUI_DIR)/backends/imgui_impl_sdlrenderer.cpp
+SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl2.cpp $(IMGUI_DIR)/backends/imgui_impl_sdlrenderer.cpp
 OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
 UNAME_S := $(shell uname -s)
 

examples/example_sdl2_sdlrenderer/README.md

@@ -0,0 +1,25 @@
+
+# How to Build
+
+- On Windows with Visual Studio's CLI
+
+```
+set SDL2_DIR=path_to_your_sdl2_folder
+cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_sdlrenderer.cpp ..\..\imgui*.cpp /FeDebug/example_sdl2_sdlrenderer.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib /subsystem:console
+#          ^^ include paths                  ^^ source files                                                                                         ^^ output exe                         ^^ output dir  ^^ libraries
+# or for 64-bit:
+cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_sdlrenderer.cpp ..\..\imgui*.cpp /FeDebug/example_sdl2_sdlrenderer.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL2.lib SDL2main.lib /subsystem:console
+```
+
+- On Linux and similar Unixes
+
+```
+c++ `sdl2-config --cflags` -I .. -I ../.. main.cpp ../../backends/imgui_impl_sdl2.cpp ../../backends/imgui_impl_sdlrenderer.cpp ../../imgui*.cpp `sdl2-config --libs` -lGL
+```
+
+- On Mac OS X
+
+```
+brew install sdl2
+c++ `sdl2-config --cflags` -I .. -I ../.. main.cpp ../../backends/imgui_impl_sdl2.cpp ../../backends/imgui_impl_sdlrenderer.cpp ../../imgui*.cpp `sdl2-config --libs` -framework OpenGl
+```

examples/example_sdl2_sdlrenderer/build_win32.bat

@@ -1,8 +1,8 @@
 @REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
 @set OUT_DIR=Debug
-@set OUT_EXE=example_sdl_sdlrenderer_
+@set OUT_EXE=example_sdl2_sdlrenderer_
 @set INCLUDES=/I..\.. /I..\..\backends /I%SDL2_DIR%\include
-@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl.cpp ..\..\backends\imgui_impl_sdlrenderer.cpp ..\..\imgui*.cpp
+@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_sdlrenderer.cpp ..\..\imgui*.cpp
 @set LIBS=/LIBPATH:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib 
 mkdir %OUT_DIR%
 cl /nologo /Zi /MD %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS% /subsystem:console

examples/example_sdl2_sdlrenderer/example_sdl2_sdlrenderer.vcxproj

@@ -20,7 +20,7 @@
   </ItemGroup>
   <PropertyGroup Label="Globals">
     <ProjectGuid>{0C0B2BEA-311F-473C-9652-87923EF639E3}</ProjectGuid>
-    <RootNamespace>example_sdl_sdlrenderer</RootNamespace>
+    <RootNamespace>example_sdl2_sdlrenderer</RootNamespace>
     <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
@@ -160,16 +160,16 @@
     <ClCompile Include="..\..\imgui_draw.cpp" />
     <ClCompile Include="..\..\imgui_tables.cpp" />
     <ClCompile Include="..\..\imgui_widgets.cpp" />
+    <ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp" />
     <ClCompile Include="..\..\backends\imgui_impl_sdlrenderer.cpp" />
-    <ClCompile Include="..\..\backends\imgui_impl_sdl.cpp" />
     <ClCompile Include="main.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\imconfig.h" />
     <ClInclude Include="..\..\imgui.h" />
     <ClInclude Include="..\..\imgui_internal.h" />
+    <ClInclude Include="..\..\backends\imgui_impl_sdl2.h" />
     <ClInclude Include="..\..\backends\imgui_impl_sdlrenderer.h" />
-    <ClInclude Include="..\..\backends\imgui_impl_sdl.h" />
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\misc\debuggers\imgui.natvis" />
@@ -178,4 +178,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>

examples/example_sdl2_sdlrenderer/example_sdl2_sdlrenderer.vcxproj.filters

@@ -28,7 +28,7 @@
     <ClCompile Include="..\..\imgui_widgets.cpp">
       <Filter>imgui</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\backends\imgui_impl_sdl.cpp">
+    <ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp">
       <Filter>sources</Filter>
     </ClCompile>
     <ClCompile Include="..\..\backends\imgui_impl_sdlrenderer.cpp">
@@ -48,7 +48,7 @@
     <ClInclude Include="..\..\backends\imgui_impl_sdlrenderer.h">
       <Filter>sources</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\backends\imgui_impl_sdl.h">
+    <ClInclude Include="..\..\backends\imgui_impl_sdl2.h">
       <Filter>sources</Filter>
     </ClInclude>
   </ItemGroup>
@@ -58,4 +58,4 @@
       <Filter>imgui</Filter>
     </None>
   </ItemGroup>
-</Project>
+</Project>

examples/example_sdl2_sdlrenderer/main.cpp

@@ -8,7 +8,7 @@
 // For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
 
 #include "imgui.h"
-#include "imgui_impl_sdl.h"
+#include "imgui_impl_sdl2.h"
 #include "imgui_impl_sdlrenderer.h"
 #include <stdio.h>
 #include <SDL.h>

examples/example_sdl2_vulkan/build_win32.bat

@@ -1,8 +1,8 @@
 @REM Build for Visual Studio compiler. Run your copy of vcvars32.bat or vcvarsall.bat to setup command-line compiler.
 
-@set OUT_EXE=example_sdl_vulkan
+@set OUT_EXE=example_sdl2_vulkan
 @set INCLUDES=/I..\.. /I..\..\backends /I%SDL2_DIR%\include /I %VULKAN_SDK%\include
-@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl.cpp ..\..\backends\imgui_impl_vulkan.cpp ..\..\imgui*.cpp
+@set SOURCES=main.cpp ..\..\backends\imgui_impl_sdl2.cpp ..\..\backends\imgui_impl_vulkan.cpp ..\..\imgui*.cpp
 @set LIBS=/LIBPATH:%SDL2_DIR%\lib\x86 /libpath:%VULKAN_SDK%\lib32 SDL2.lib SDL2main.lib shell32.lib vulkan-1.lib
 
 @set OUT_DIR=Debug

examples/example_sdl2_vulkan/example_sdl2_vulkan.vcxproj

@@ -20,7 +20,7 @@
   </ItemGroup>
   <PropertyGroup Label="Globals">
     <ProjectGuid>{BAE3D0B5-9695-4EB1-AD0F-75890EB4A3B3}</ProjectGuid>
-    <RootNamespace>example_sdl_vulkan</RootNamespace>
+    <RootNamespace>example_sdl2_vulkan</RootNamespace>
     <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
@@ -164,7 +164,7 @@
     <ClCompile Include="..\..\imgui_draw.cpp" />
     <ClCompile Include="..\..\imgui_tables.cpp" />
     <ClCompile Include="..\..\imgui_widgets.cpp" />
-    <ClCompile Include="..\..\backends\imgui_impl_sdl.cpp" />
+    <ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp" />
     <ClCompile Include="..\..\backends\imgui_impl_vulkan.cpp" />
     <ClCompile Include="main.cpp" />
   </ItemGroup>
@@ -172,7 +172,7 @@
     <ClInclude Include="..\..\imconfig.h" />
     <ClInclude Include="..\..\imgui.h" />
     <ClInclude Include="..\..\imgui_internal.h" />
-    <ClInclude Include="..\..\backends\imgui_impl_sdl.h" />
+    <ClInclude Include="..\..\backends\imgui_impl_sdl2.h" />
     <ClInclude Include="..\..\backends\imgui_impl_vulkan.h" />
   </ItemGroup>
   <ItemGroup>
@@ -182,4 +182,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>

examples/example_sdl2_vulkan/example_sdl2_vulkan.vcxproj.filters

@@ -19,7 +19,7 @@
     <ClCompile Include="..\..\imgui_draw.cpp">
       <Filter>imgui</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\backends\imgui_impl_sdl.cpp">
+    <ClCompile Include="..\..\backends\imgui_impl_sdl2.cpp">
       <Filter>sources</Filter>
     </ClCompile>
     <ClCompile Include="main.cpp">
@@ -45,7 +45,7 @@
     <ClInclude Include="..\..\imgui_internal.h">
       <Filter>imgui</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\backends\imgui_impl_sdl.h">
+    <ClInclude Include="..\..\backends\imgui_impl_sdl2.h">
       <Filter>sources</Filter>
     </ClInclude>
     <ClInclude Include="..\..\backends\imgui_impl_vulkan.h">
@@ -58,4 +58,4 @@
       <Filter>imgui</Filter>
     </None>
   </ItemGroup>
-</Project>
+</Project>

examples/example_sdl2_vulkan/main.cpp

@@ -10,7 +10,7 @@
 // Read comments in imgui_impl_vulkan.h.
 
 #include "imgui.h"
-#include "imgui_impl_sdl.h"
+#include "imgui_impl_sdl2.h"
 #include "imgui_impl_vulkan.h"
 #include <stdio.h>          // printf, fprintf
 #include <stdlib.h>         // abort

examples/example_sdl_opengl2/README.md

@@ -1,29 +0,0 @@
-
-# How to Build
-
-- On Windows with Visual Studio's IDE
-
-Use the provided project file (.vcxproj). Add to solution (imgui_examples.sln) if necessary.
-
-- On Windows with Visual Studio's CLI
-
-```
-set SDL2_DIR=path_to_your_sdl2_folder
-cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl.cpp ..\..\backends\imgui_impl_opengl2.cpp ..\..\imgui*.cpp /FeDebug/example_sdl_opengl2.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
-#          ^^ include paths                  ^^ source files                                                           ^^ output exe                    ^^ output dir   ^^ libraries
-# or for 64-bit:
-cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl.cpp ..\..\backends\imgui_impl_opengl2.cpp ..\..\imgui*.cpp /FeDebug/example_sdl_opengl2.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL2.lib SDL2main.lib opengl32.lib /subsystem:console
-```
-
-- On Linux and similar Unixes
-
-```
-c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl2.cpp ../../imgui*.cpp `sdl2-config --libs` -lGL
-```
-
-- On Mac OS X
-
-```
-brew install sdl2
-c++ `sdl2-config --cflags` -I .. -I ../.. -I ../../backends main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_opengl2.cpp ../../imgui*.cpp `sdl2-config --libs` -framework OpenGl
-```

examples/example_sdl_sdlrenderer/README.md

@@ -1,25 +0,0 @@
-
-# How to Build
-
-- On Windows with Visual Studio's CLI
-
-```
-set SDL2_DIR=path_to_your_sdl2_folder
-cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl.cpp ..\..\backends\imgui_impl_sdlrenderer.cpp ..\..\imgui*.cpp /FeDebug/example_sdl_sdlrenderer.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x86 SDL2.lib SDL2main.lib /subsystem:console
-#          ^^ include paths                  ^^ source files                                                                                        ^^ output exe                        ^^ output dir  ^^ libraries
-# or for 64-bit:
-cl /Zi /MD /I.. /I..\.. /I%SDL2_DIR%\include main.cpp ..\..\backends\imgui_impl_sdl.cpp ..\..\backends\imgui_impl_sdlrenderer.cpp ..\..\imgui*.cpp /FeDebug/example_sdl_sdlrenderer.exe /FoDebug/ /link /libpath:%SDL2_DIR%\lib\x64 SDL2.lib SDL2main.lib /subsystem:console
-```
-
-- On Linux and similar Unixes
-
-```
-c++ `sdl2-config --cflags` -I .. -I ../.. main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_sdlrenderer.cpp ../../imgui*.cpp `sdl2-config --libs` -lGL
-```
-
-- On Mac OS X
-
-```
-brew install sdl2
-c++ `sdl2-config --cflags` -I .. -I ../.. main.cpp ../../backends/imgui_impl_sdl.cpp ../../backends/imgui_impl_sdlrenderer.cpp ../../imgui*.cpp `sdl2-config --libs` -framework OpenGl
-```

examples/imgui_examples.sln

@@ -17,15 +17,15 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_glfw_opengl3", "exa
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_glfw_vulkan", "example_glfw_vulkan\example_glfw_vulkan.vcxproj", "{57E2DF5A-6FC8-45BB-99DD-91A18C646E80}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_sdl_directx11", "example_sdl_directx11\example_sdl_directx11.vcxproj", "{9E1987E3-1F19-45CA-B9C9-D31E791836D8}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_sdl2_directx11", "example_sdl2_directx11\example_sdl2_directx11.vcxproj", "{9E1987E3-1F19-45CA-B9C9-D31E791836D8}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_sdl_opengl2", "example_sdl_opengl2\example_sdl_opengl2.vcxproj", "{2AE17FDE-F7F3-4CAC-ADAB-0710EDA4F741}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_sdl2_opengl2", "example_sdl2_opengl2\example_sdl2_opengl2.vcxproj", "{2AE17FDE-F7F3-4CAC-ADAB-0710EDA4F741}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_sdl_opengl3", "example_sdl_opengl3\example_sdl_opengl3.vcxproj", "{BBAEB705-1669-40F3-8567-04CF6A991F4C}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_sdl2_opengl3", "example_sdl2_opengl3\example_sdl2_opengl3.vcxproj", "{BBAEB705-1669-40F3-8567-04CF6A991F4C}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_sdl_sdlrenderer", "example_sdl_sdlrenderer\example_sdl_sdlrenderer.vcxproj", "{0C0B2BEA-311F-473C-9652-87923EF639E3}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_sdl2_sdlrenderer", "example_sdl2_sdlrenderer\example_sdl2_sdlrenderer.vcxproj", "{0C0B2BEA-311F-473C-9652-87923EF639E3}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_sdl_vulkan", "example_sdl_vulkan\example_sdl_vulkan.vcxproj", "{BAE3D0B5-9695-4EB1-AD0F-75890EB4A3B3}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "example_sdl2_vulkan", "example_sdl2_vulkan\example_sdl2_vulkan.vcxproj", "{BAE3D0B5-9695-4EB1-AD0F-75890EB4A3B3}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution

imgui.cpp

@@ -386,6 +386,7 @@ CODE
  When you are not sure about an old symbol or function name, try using the Search/Find function of your IDE to look for comments or references in all imgui files.
  You can read releases logs https://github.com/ocornut/imgui/releases for more details.
 
+ - 2023/02/07 (1.89.3) - backends: renamed "imgui_impl_sdl.cpp" to "imgui_impl_sdl2.cpp" and "imgui_impl_sdl.h" to "imgui_impl_sdl2.h". (#6146) This is in prevision for the future release of SDL3.
  - 2022/10/26 (1.89) - commented out redirecting OpenPopupContextItem() which was briefly the name of OpenPopupOnItemClick() from 1.77 to 1.79.
  - 2022/10/12 (1.89) - removed runtime patching of invalid "%f"/"%0.f" format strings for DragInt()/SliderInt(). This was obsoleted in 1.61 (May 2018). See 1.61 changelog for details.
  - 2022/09/26 (1.89) - renamed and merged keyboard modifiers key enums and flags into a same set. Kept inline redirection enums (will obsolete).