[PATCH 0/1] MR7763: winex11: Avoid sending WM_MOUSEACTIVATE on WM_TAKE_FOCUS.

[Rémi Bernon (＠rbernon)]

It confuses Unity and breaks input after alt-tab.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=48121

[PATCH 1/1] winex11: Avoid sending WM_MOUSEACTIVATE on WM_TAKE_FOCUS.

[Rémi Bernon]

From: Rémi Bernon

It confuses Unity and breaks input after alt-tab.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=48121
---
 dlls/winex11.drv/event.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/dlls/winex11.drv/event.c b/dlls/winex11.drv/event.c
index f9aa4b3f66b..89b99af8951 100644
--- a/dlls/winex11.drv/event.c
+++ b/dlls/winex11.drv/event.c
@@ -772,16 +772,8 @@ static void handle_wm_protocols( HWND hwnd, XClientMessageEvent *event )

if (can_activate_window(hwnd))
         {
-            /* simulate a mouse click on the menu to find out
-             * whether the window wants to be activated */
-            LRESULT ma = send_message( hwnd, WM_MOUSEACTIVATE,
-                                       (WPARAM)NtUserGetAncestor( hwnd, GA_ROOT ),
-                                       MAKELONG( HTMENU, WM_LBUTTONDOWN ) );
-            if (ma != MA_NOACTIVATEANDEAT && ma != MA_NOACTIVATE)
-            {
-                set_focus( event->display, hwnd, event_time );
-                return;
-            }
+            set_focus( event->display, hwnd, event_time );
+            return;
         }
         else if (hwnd == NtUserGetDesktopWindow())
         {

[Tim Clem (＠tclem)]

We do an analogous thing in macdrv [here](https://gitlab.winehq.org/wine/wine/-/blob/856efc7a958c32a34b3d7e47cc80a8ab0...), which is also known to confuse Unity. Should we remove that as well?

[Rémi Bernon (＠rbernon)]

Probably yes, although this has been tested in Proton with many games there's still a possibility that it could break other kind of applications. I'm not completely sure why it was added in the first place.

[Tim Clem (＠tclem)]

On Tue Apr  8 17:25:54 2025 +0000, Rémi Bernon wrote:
> Probably yes, although this has been tested in Proton with many games
> there's still a possibility that it could break other kind of
> applications. I'm not completely sure why it was added in the first place.

For what it's worth, CrossOver has carried a hack that removes the WM_MOUSEACTIVATE from macdrv for about 4 years.