X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3f66f6a5b3583b02c34854556eb83e3a808524ce..dd44c130144ad153bf67121a94b23a615db409f5:/src/msw/toplevel.cpp

diff --git a/src/msw/toplevel.cpp b/src/msw/toplevel.cpp
index a48e267e78..37b3a3d0a7 100644
--- a/src/msw/toplevel.cpp
+++ b/src/msw/toplevel.cpp
@@ -1100,6 +1100,12 @@ bool wxTopLevelWindowMSW::ShowFullScreen(bool show, long style)
 
         newStyle &= ~offFlags;
 
+        // Full screen windows should logically be popups as they don't have
+        // decorations (and are definitely not children) and while not using
+        // this style doesn't seem to make any difference for most windows, it
+        // breaks wxGLCanvas in some cases, see #15434, so just always use it.
+        newStyle |= WS_POPUP;
+
         // change our window style to be compatible with full-screen mode
         ::SetWindowLong(GetHwnd(), GWL_STYLE, newStyle);