From 3b17d08eb292583ee0668b6b9ad29c3ad89d5200 Mon Sep 17 00:00:00 2001 From: Frank Praznik Date: Wed, 16 Apr 2025 12:47:29 -0400 Subject: [PATCH] win32: Check internal data when positioning child windows Under certain circumstances, processing events may try to position a child before it is fully initialized. Check the internal data before proceeding. (cherry picked from commit 9da46bc37fb9920f5ee12b187f165a30339985cc) --- src/video/windows/SDL_windowswindow.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/video/windows/SDL_windowswindow.c b/src/video/windows/SDL_windowswindow.c index 355b7c2fd2..fe21fa7e9b 100644 --- a/src/video/windows/SDL_windowswindow.c +++ b/src/video/windows/SDL_windowswindow.c @@ -348,6 +348,10 @@ bool WIN_SetWindowPositionInternal(SDL_Window *window, UINT flags, SDL_WindowRec // Update any child windows for (child_window = window->first_child; child_window; child_window = child_window->next_sibling) { + if (!child_window->internal) { + // This child window is not yet fully initialized. + continue; + } if (!WIN_SetWindowPositionInternal(child_window, flags, SDL_WINDOWRECT_CURRENT)) { result = false; }