Rémi Bernon : win32u: Update the window state when WS_EX_LAYERED window style changes.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 12010b7006b913f698d463f53607e3a3226e22d2
URL:    https://gitlab.winehq.org/wine/wine/-/commit/12010b7006b913f698d463f53607e3a...

Author: Rémi Bernon 
Date:   Sat Jun 15 21:09:37 2024 +0200

win32u: Update the window state when WS_EX_LAYERED window style changes.

In order for apply_window_pos to be called and surface to be updated.

---

dlls/win32u/window.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/dlls/win32u/window.c b/dlls/win32u/window.c
index 7edbbba29bb..c860be38c65 100644
--- a/dlls/win32u/window.c
+++ b/dlls/win32u/window.c
@@ -1202,7 +1202,7 @@ static HWND set_window_owner( HWND hwnd, HWND owner )
 /* Helper function for SetWindowLong(). */
 LONG_PTR set_window_long( HWND hwnd, INT offset, UINT size, LONG_PTR newval, BOOL ansi )
 {
-    BOOL ok, made_visible = FALSE;
+    BOOL ok, made_visible = FALSE, layered = TRUE;
     LONG_PTR retval = 0;
     STYLESTRUCT style;
     WND *win;
@@ -1389,8 +1389,8 @@ LONG_PTR set_window_long( HWND hwnd, INT offset, UINT size, LONG_PTR newval, BOO
     }
     SERVER_END_REQ;

-    if ((offset == GWL_STYLE && ((style.styleOld ^ style.styleNew) & WS_VISIBLE)) ||
-        (offset == GWL_EXSTYLE && ((style.styleOld ^ style.styleNew) & WS_EX_LAYERED)))
+    if (offset == GWL_EXSTYLE && ((style.styleOld ^ style.styleNew) & WS_EX_LAYERED)) layered = TRUE;
+    if ((offset == GWL_STYLE && ((style.styleOld ^ style.styleNew) & WS_VISIBLE)) || layered)
     {
         made_visible = (win->dwStyle & WS_VISIBLE) != 0;
         invalidate_dce( win, NULL );
@@ -1404,7 +1404,7 @@ LONG_PTR set_window_long( HWND hwnd, INT offset, UINT size, LONG_PTR newval, BOO
         style.styleOld = retval;
         style.styleNew = newval;
         user_driver->pSetWindowStyle( hwnd, offset, &style );
-        if (made_visible) update_window_state( hwnd );
+        if (made_visible || layered) update_window_state( hwnd );
         send_message( hwnd, WM_STYLECHANGED, offset, (LPARAM)&style );
     }