From c105540bb10df5d29a101f593f2a3801c1fa0799 Mon Sep 17 00:00:00 2001
From: gernot steinegger <gernot.steinegger@gmail.com>
Date: Sun, 9 Jan 2022 13:01:25 +0100
Subject: [PATCH] "SDL_CreateWindowFrom" in "display" module

if the environment variable "SDL_WINDOWID" is set, use "SDL_CreateWindowFrom" to create the window in "display.set_mode"
---
 src_c/display.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src_c/display.c b/src_c/display.c
index d37c29765a..26f07f77e9 100644
--- a/src_c/display.c
+++ b/src_c/display.c
@@ -1096,7 +1096,10 @@ pg_set_mode(PyObject *self, PyObject *arg, PyObject *kwds)
 
             if (!win) {
                 /*open window*/
-                win = SDL_CreateWindow(title, x, y, w_1, h_1, sdl_flags);
+                const char *window_handle = SDL_getenv("SDL_WINDOWID");
+                win = window_handle
+                    ? SDL_CreateWindowFrom((const void*)atoll(window_handle))
+                    : SDL_CreateWindow(title, x, y, w_1, h_1, sdl_flags);
                 if (!win)
                     return RAISE(pgExc_SDLError, SDL_GetError());
                 init_flip = 1;