[PATCH 2/2] user32/painting: Trigger WM_PAINT before validating in RedrawWindow.

[Roman Pišl]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=48761
Signed-off-by: Roman Pišl 
---
 dlls/user32/painting.c  | 9 ++++++++-
 dlls/user32/tests/msg.c | 1 -
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/dlls/user32/painting.c b/dlls/user32/painting.c
index 313c5fa1e6..d91305a714 100644
--- a/dlls/user32/painting.c
+++ b/dlls/user32/painting.c
@@ -1229,6 +1229,7 @@ BOOL WINAPI RedrawWindow( HWND hwnd, const RECT *rect, HRGN hrgn, UINT flags )
 {
     static const RECT empty;
     BOOL ret;
+    BOOL updated = FALSE;

if (TRACE_ON(win))
     {
@@ -1249,6 +1250,12 @@ BOOL WINAPI RedrawWindow( HWND hwnd, const RECT *rect, HRGN hrgn, UINT flags )
     /* process pending expose events before painting */
     if (flags & RDW_UPDATENOW) USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_PAINT, 0 );

+    if ((flags & (RDW_INTERNALPAINT | RDW_UPDATENOW | RDW_VALIDATE)) == (RDW_INTERNALPAINT | RDW_UPDATENOW | RDW_VALIDATE))
+    {
+       update_now( hwnd, flags );
+       updated = TRUE;
+    }
+
     if (rect && !hrgn)
     {
         if (IsRectEmpty( rect )) rect = ∅
@@ -1275,7 +1282,7 @@ BOOL WINAPI RedrawWindow( HWND hwnd, const RECT *rect, HRGN hrgn, UINT flags )

if (!hwnd) hwnd = GetDesktopWindow();

-    if (flags & RDW_UPDATENOW) update_now( hwnd, flags );
+    if (flags & RDW_UPDATENOW && !updated) update_now( hwnd, flags );
     else if (flags & RDW_ERASENOW) erase_now( hwnd, flags );

return ret;
diff --git a/dlls/user32/tests/msg.c b/dlls/user32/tests/msg.c
index 4df10a8300..3a0dd8dbbb 100644
--- a/dlls/user32/tests/msg.c
+++ b/dlls/user32/tests/msg.c
@@ -2548,7 +2548,6 @@ static void ok_sequence_(const struct message *expected_list, const char *contex
                 context, count, expected->message);
             if ((expected->flags & kbd_hook) != (actual->flags & kbd_hook)) dump++;

-	    todo_wine_if(line==8239)
        ok_( file, line) (!(expected->flags & has_update) || (actual->flags & has_update),
    	"%s: %u: the msg 0x%04x should have update region\n",
                 context, count, expected->message);