# SDL: Added SDL\_PROP\_WINDOW\_CREATE\_WIN32\_STYLE\_EX\_NUMBER

**URL:** <https://discourse.libsdl.org/t/sdl-added-sdl-prop-window-create-win32-style-ex-number/69309>\
**Category:** SDL Commits\
**Created:** [September 13, 2026, 5:46pm UTC](https://discourse.libsdl.org/t/sdl-added-sdl-prop-window-create-win32-style-ex-number/69309 "2026-09-13T17:46:53Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![SDLPushPostBot](https://discourse.libsdl.org/user_avatar/discourse.libsdl.org/sdlpushpostbot/32/4370_2.png) [@SDLPushPostBot](https://discourse.libsdl.org/u/SDLPushPostBot)\
**Post date:** [September 13, 2026, 5:46pm UTC](https://discourse.libsdl.org/t/sdl-added-sdl-prop-window-create-win32-style-ex-number/69309/1 "2026-09-13T17:46:53Z")

</div>

> <https://github.com/libsdl-org/SDL/commit/5b02b2217cabb91277a5078956febc291608a0ee>

```diff
From 5b02b2217cabb91277a5078956febc291608a0ee Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Sun, 13 Sep 2026 10:40:44 -0700
Subject: [PATCH] Added SDL_PROP_WINDOW_CREATE_WIN32_STYLE_EX_NUMBER

---
 include/SDL3/SDL_video.h | 2 ++
 src/video/windows/SDL_windowswindow.c | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/SDL3/SDL_video.h b/include/SDL3/SDL_video.h
index 5048f5a05623e..b85d0275d7dca 100644
--- a/include/SDL3/SDL_video.h
+++ b/include/SDL3/SDL_video.h
@@ -1399,6 +1399,7 @@ extern SDL_DECLSPEC SDL_Window * SDLCALL SDL_CreatePopupWindow(SDL_Window *paren
  * window, if you want to wrap an existing window.
  * - `SDL_PROP_WINDOW_CREATE_WIN32_PIXEL_FORMAT_HWND_POINTER`: optional,
  * another window to share pixel format with, useful for OpenGL windows
+ * - `SDL_PROP_WINDOW_CREATE_WIN32_STYLE_EX_NUMBER`: the window style (WS_EX_*) flags to use instead of the defaults.
  *
  * These are additional supported properties with X11:
  *
@@ -1494,6 +1495,7 @@ extern SDL_DECLSPEC SDL_Window * SDLCALL SDL_CreateWindowWithProperties(SDL_Prop
 #define SDL_PROP_WINDOW_CREATE_WAYLAND_WL_SURFACE_POINTER "SDL.window.create.wayland.wl_surface"
 #define SDL_PROP_WINDOW_CREATE_WIN32_HWND_POINTER "SDL.window.create.win32.hwnd"
 #define SDL_PROP_WINDOW_CREATE_WIN32_PIXEL_FORMAT_HWND_POINTER "SDL.window.create.win32.pixel_format_hwnd"
+#define SDL_PROP_WINDOW_CREATE_WIN32_STYLE_EX_NUMBER "SDL.window.create.win32.style_ex"
 #define SDL_PROP_WINDOW_CREATE_X11_WINDOW_NUMBER "SDL.window.create.x11.window"
 #define SDL_PROP_WINDOW_CREATE_EMSCRIPTEN_CANVAS_ID_STRING "SDL.window.create.emscripten.canvas_id"
 #define SDL_PROP_WINDOW_CREATE_EMSCRIPTEN_KEYBOARD_ELEMENT_STRING "SDL.window.create.emscripten.keyboard_element"
diff --git a/src/video/windows/SDL_windowswindow.c b/src/video/windows/SDL_windowswindow.c
index 7c4270e1aa371..7d064ece501e1 100644
--- a/src/video/windows/SDL_windowswindow.c
+++ b/src/video/windows/SDL_windowswindow.c
@@ -713,7 +713,7 @@ bool WIN_CreateWindow(SDL_VideoDevice *_this, SDL_Window *window, SDL_Properties
         }
 
         style |= GetWindowStyle(window);
- styleEx |= GetWindowStyleEx(window);
+ styleEx |= (DWORD)SDL_GetNumberProperty(create_props, SDL_PROP_WINDOW_CREATE_WIN32_STYLE_EX_NUMBER, GetWindowStyleEx(window));
 
         // Figure out what the window area will be
         WIN_ConstrainPopup(window, false);

```