winex11.drv: Don't assume that owner is top-level window in set_style_hints.

Signed-off-by: Piotr Caban <piotr@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

winex11.drv: Don't assume that owner is top-level window in set_style_hints.
6afecf22 · Piotr Caban · Alexandre Julliard · a04c393a · 6afecf22
Commit 6afecf22 authored Jun 25, 2016 by Piotr Caban Committed by Alexandre Julliard Jul 03, 2016
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window.c dlls/winex11.drv/window.c +7 -1

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--- a/dlls/winex11.drv/window.c
+++ b/dlls/winex11.drv/window.c
@@ -748,10 +748,16 @@ static void set_style_hints( struct x11drv_win_data *data, DWORD style, DWORD ex
 {
    Window group_leader = data->whole_window;
    HWND owner = GetWindow( data->hwnd, GW_OWNER );
-    Window owner_win = X11DRV_get_whole_window( owner );
+    Window owner_win = 0;
    XWMHints *wm_hints;
    Atom window_type;

+    if (owner)
+    {
+        owner = GetAncestor( owner, GA_ROOT );
+        owner_win = X11DRV_get_whole_window( owner );
+    }
+
    if (owner_win)
    {
        XSetTransientForHint( data->display, data->whole_window, owner_win );