[Emacs-diffs] emacs-26 88a0dd7: In w32fullscreen_hook don't add decorations to undecorated frames

[Martin Rudalics]

branch: emacs-26
commit 88a0dd71f10ffb63fba08c062e948551c3e876c2
Author: Martin Rudalics <address@hidden>
Commit: Martin Rudalics <address@hidden>

    In w32fullscreen_hook don't add decorations to undecorated frames
    
    * src/w32term.c (w32fullscreen_hook): Do not add (or try to
    remove) decorations for undecorated frames.
---
 src/w32term.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/w32term.c b/src/w32term.c
index a7a510b..d7ec401 100644
--- a/src/w32term.c
+++ b/src/w32term.c
@@ -6252,7 +6252,8 @@ w32fullscreen_hook (struct frame *f)
 
       if (FRAME_PREV_FSMODE (f) == FULLSCREEN_BOTH)
         {
-          SetWindowLong (hwnd, GWL_STYLE, dwStyle | WS_OVERLAPPEDWINDOW);
+         if (!FRAME_UNDECORATED (f))
+           SetWindowLong (hwnd, GWL_STYLE, dwStyle | WS_OVERLAPPEDWINDOW);
          SetWindowPlacement (hwnd, &FRAME_NORMAL_PLACEMENT (f));
        }
       else if (FRAME_PREV_FSMODE (f) == FULLSCREEN_HEIGHT
@@ -6278,7 +6279,8 @@ w32fullscreen_hook (struct frame *f)
 
          w32_fullscreen_rect (hwnd, f->want_fullscreen,
                               FRAME_NORMAL_PLACEMENT (f).rcNormalPosition, 
&rect);
-          SetWindowLong (hwnd, GWL_STYLE, dwStyle & ~WS_OVERLAPPEDWINDOW);
+         if (!FRAME_UNDECORATED (f))
+           SetWindowLong (hwnd, GWL_STYLE, dwStyle & ~WS_OVERLAPPEDWINDOW);
           SetWindowPos (hwnd, HWND_TOP, rect.left, rect.top,
                         rect.right - rect.left, rect.bottom - rect.top,
                         SWP_NOOWNERZORDER | SWP_FRAMECHANGED);