[PATCH v4 9/9] win32u: Use parent rectangle for visible region calculations of a CS_PARENTDC child.

[Dmitry Timoshkov]

From: Dmitry Timoshkov

Signed-off-by: Dmitry Timoshkov 
---
 dlls/user32/tests/dce.c | 3 +--
 dlls/win32u/dce.c       | 5 +++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/dlls/user32/tests/dce.c b/dlls/user32/tests/dce.c
index e9cc9817432..ccc7b03e273 100644
--- a/dlls/user32/tests/dce.c
+++ b/dlls/user32/tests/dce.c
@@ -521,7 +521,7 @@ static void test_begin_paint(void)
     ok( rect.bottom == parent_rect.bottom, "rect.bottom = %ld, expected %ld\n", rect.bottom, parent_rect.bottom );

hdc = GetDC( hwnd_parent );
-    todo_wine ok( GetPixel( hdc, 60, 60 ) == cr, "error drawing outside of window client area\n" );
+    ok( GetPixel( hdc, 60, 60 ) == cr, "error drawing outside of window client area\n" );
     ReleaseDC( hwnd_parent, hdc );
 }

@@ -566,7 +566,6 @@ static void test_cropped_parentdc_paint_clipbox(void)

hdc = GetDC( hwnd_container );
     MapWindowPoints( hwnd_child, hwnd_container, &dot_pos, 1 );
-    todo_wine
     ok( GetPixel( hdc, dot_pos.x, dot_pos.y ) == cr, "error drawing outside of window client area\n" );
     ReleaseDC( hwnd_container, hdc );

diff --git a/dlls/win32u/dce.c b/dlls/win32u/dce.c
index 93107f93930..58d7c30ee4e 100644
--- a/dlls/win32u/dce.c
+++ b/dlls/win32u/dce.c
@@ -420,6 +420,11 @@ static void update_visible_region( struct dce *dce )
                 top_win     = wine_server_ptr_handle( reply->top_win );
                 win_rect    = wine_server_get_rect( reply->win_rect );
                 top_rect    = wine_server_get_rect( reply->top_rect );
+                if (flags & DCX_PARENTCLIP)
+                {
+                    win_rect.right  = top_rect.right;
+                    win_rect.bottom = top_rect.bottom;
+                }
                 paint_flags = reply->paint_flags;
             }
             else size = reply->total_size;