[PATCH 2/7] winex11: Reset the window relative position when it gets reparented.

[Rémi Bernon]

From: Rémi Bernon

Instead of keeping the same offset as from the previous window parent,
which may cause offsets to stack up with embedded windows.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=57370
---
 dlls/winex11.drv/window.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/dlls/winex11.drv/window.c b/dlls/winex11.drv/window.c
index 98772f3d44e..02a1eb13c48 100644
--- a/dlls/winex11.drv/window.c
+++ b/dlls/winex11.drv/window.c
@@ -2320,7 +2320,12 @@ void set_window_parent( struct x11drv_win_data *data, Window parent )
     if (!data->whole_window) return; /* only keep track of parent if we have a toplevel */
     TRACE( "window %p/%lx, parent %lx\n", data->hwnd, data->whole_window, parent );
     host_window_reparent( &data->parent, parent, data->whole_window );
-    if (data->parent) host_window_configure_child( data->parent, data->whole_window, data->rects.visible, TRUE );
+    if (data->parent)
+    {
+        RECT rect = data->rects.visible;
+        OffsetRect( &rect, -rect.left, -rect.top );
+        host_window_configure_child( data->parent, data->whole_window, rect, TRUE );
+    }
     data->parent_invalid = 0;
 }