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+# Windows
+
+## Old systems
+
+WinRT, Windows Phone, and UWP are no longer supported.
+
+All desktop Windows versions, back to Windows XP, are still supported.
+
+## LLVM and Intel C++ compiler support
+
+SDL will build with the Visual Studio project files with LLVM-based compilers, such as the Intel oneAPI C++
+compiler, but you'll have to manually add the "-msse3" command line option
+to at least the SDL_audiocvt.c source file, and possibly others. This may
+not be necessary if you build SDL with CMake instead of the included Visual
+Studio solution.
+
+Details are here: https://github.com/libsdl-org/SDL/issues/5186
+
+## MinGW-w64 compiler support
+
+SDL can be built with MinGW-w64 and CMake. Minimum tested MinGW-w64 version is 8.0.3.
+
+On a Windows host, you first need to install and set up the MSYS2 environment, which provides the MinGW-w64 toolchain. Install MSYS2, typically to `C:\msys64`, and follow the instructions on the MSYS2 wiki to use the MinGW-w64 shell to update all components in the MSYS2 environment. This generally amounts to running `pacman -Syuu` from the mingw64 shell, but refer to MSYS2's documentation for more details. Once the MSYS2 environment has been updated, install the x86_64 MinGW toolchain from the mingw64 shell with the command `pacman -S mingw-w64-x86_64-toolchain`. (You can additionally install `mingw-w64-i686-toolchain` if you intend to build 32-bit binaries as well. The remainder of this section assumes you only want to build 64-bit binaries.)
+
+To build and install SDL, you can use PowerShell or any CMake-compatible IDE. First, install CMake, Ninja, and Git. These tools can be installed using any number of tools, such as the MSYS2's `pacman`, `winget`, `Chocolatey`, or by manually downloading and running the installers. Clone SDL to an appropriate location with `git` and run the following commands from the root of the cloned repository:
+
+```sh
+mkdir build
+cmake -S . -B build -G Ninja -DCMAKE_TOOLCHAIN_FILE=build-scripts/cmake-toolchain-mingw64-x86_64.cmake
+cmake --build build --parallel
+cmake --install build --prefix C:/Libraries
+```
+
+This installs SDL to `C:\Libraries`. You can specify another directory of your choice as desired. Ensure that your `CMAKE_PREFIX_PATH` includes `C:\Libraries` when you want to build against this copy of SDL. The simplest way to do this is to pass it to CMake as an option at configuration time:
+
+```sh
+cmake .. -G Ninja -DCMAKE_PREFIX_PATH=C:/Libraries
+```
+
+You will also need to configure CMake to use the MinGW-w64 toolchain to build your own project. Here is a minimal toolchain file that you could use for this purpose:
+
+```
+set(CMAKE_SYSTEM_NAME Windows)
+set(CMAKE_SYSTEM_PROCESSOR x86_64)
+
+find_program(CMAKE_C_COMPILER NAMES x86_64-w64-mingw32-gcc REQUIRED)
+find_program(CMAKE_CXX_COMPILER NAMES x86_64-w64-mingw32-g++ REQUIRED)
+find_program(CMAKE_RC_COMPILER NAMES x86_64-w64-mingw32-windres windres REQUIRED)
+```
+
+Save this in your project and refer to it at configuration time with the option `-DCMAKE_TOOLCHAIN_FILE`.
+
+On Windows, you also need to copy `SDL3.dll` to an appropriate directory so that the game can find it at runtime. For guidance, see [README-cmake.md](README-cmake.md#how-do-i-copy-a-sdl3-dynamic-library-to-another-location).
+
+Below is a minimal `CMakeLists.txt` file to build your game linked against a system SDL that was built with the MinGW-w64 toolchain. See [README-cmake.md](README-cmake.md) for more details on including SDL in your CMake project.
+
+```cmake
+cmake_minimum_required(VERSION 3.15)
+project(mygame)
+
+find_package(SDL3 REQUIRED CONFIG COMPONENTS SDL3-shared)
+
+add_executable(mygame WIN32 mygame.c)
+target_link_libraries(mygame PRIVATE SDL3::SDL3)
+
+# On Windows, copy SDL3.dll to the build directory
+if(WIN32)
+    add_custom_command(
+        TARGET mygame POST_BUILD
+        COMMAND "${CMAKE_COMMAND}" -E copy $<TARGET_FILE:SDL3::SDL3-shared> $<TARGET_FILE_DIR:mygame>
+        VERBATIM
+    )
+endif()
+```
+
+## OpenGL ES 2.x support
+
+SDL has support for OpenGL ES 2.x under Windows via two alternative
+implementations.
+
+The most straightforward method consists in running your app in a system with
+a graphic card paired with a relatively recent (as of November of 2013) driver
+which supports the WGL_EXT_create_context_es2_profile extension. Vendors known
+to ship said extension on Windows currently include nVidia and Intel.
+
+The other method involves using the
+[ANGLE library](https://code.google.com/p/angleproject/). If an OpenGL ES 2.x
+context is requested and no WGL_EXT_create_context_es2_profile extension is
+found, SDL will try to load the libEGL.dll library provided by ANGLE.
+
+To obtain the ANGLE binaries, you can either compile from source from
+https://chromium.googlesource.com/angle/angle or copy the relevant binaries
+from a recent Chrome/Chromium install for Windows. The files you need are:
+
+- libEGL.dll
+- libGLESv2.dll
+- d3dcompiler_46.dll (supports Windows Vista or later, better shader
+  compiler) *or* d3dcompiler_43.dll (supports Windows XP or later)
+
+If you compile ANGLE from source, you can configure it so it does not need the
+d3dcompiler_* DLL at all (for details on this, see their documentation).
+However, by default SDL will try to preload the d3dcompiler_46.dll to
+comply with ANGLE's requirements. If you wish SDL to preload
+d3dcompiler_43.dll (to support Windows XP) or to skip this step at all, you
+can use the SDL_HINT_VIDEO_WIN_D3DCOMPILER hint (see SDL_hints.h for more
+details).
+
+Known Bugs:
+
+- SDL_GL_SetSwapInterval is currently a no op when using ANGLE. It appears
+  that there's a bug in the library which prevents the window contents from
+  refreshing if this is set to anything other than the default value.
+
+## Vulkan Surface Support
+
+Support for creating Vulkan surfaces is configured on by default. To disable
+it change the value of `SDL_VIDEO_VULKAN` to 0 in `SDL_config_windows.h`. You
+must install the [Vulkan SDK](https://www.lunarg.com/vulkan-sdk/) in order to
+use Vulkan graphics in your application.
+
+## Transparent Window Support
+
+SDL uses the Desktop Window Manager (DWM) to create transparent windows. DWM is
+always enabled from Windows 8 and above. Windows 7 only enables DWM with Aero Glass
+theme.
+
+However, it cannot be guaranteed to work on all hardware configurations (an example
+is hybrid GPU systems, such as NVIDIA Optimus laptops).