Alexandros Frantzis : win32u: Respect per-monitor thread dpi awareness when getting window from point.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 07d3846d370e85b8f7a3c6b3e214702d43fd07f8
URL:    https://gitlab.winehq.org/wine/wine/-/commit/07d3846d370e85b8f7a3c6b3e214702...

Author: Alexandros Frantzis 
Date:   Tue Nov 14 10:19:30 2023 +0200

win32u: Respect per-monitor thread dpi awareness when getting window from point.

---

dlls/win32u/window.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/dlls/win32u/window.c b/dlls/win32u/window.c
index 4a57e0abde7..69dd8caba5d 100644
--- a/dlls/win32u/window.c
+++ b/dlls/win32u/window.c
@@ -2229,8 +2229,10 @@ HWND window_from_point( HWND hwnd, POINT pt, INT *hittest )
     int i, res;
     HWND ret, *list;
     POINT win_pt;
+    int dpi;

if (!hwnd) hwnd = get_desktop_window();
+    if (!(dpi = get_thread_dpi())) dpi = get_win_monitor_dpi( hwnd );

*hittest = HTNOWHERE;

@@ -2254,7 +2256,7 @@ HWND window_from_point( HWND hwnd, POINT pt, INT *hittest )
             *hittest = HTCLIENT;
             break;
         }
-        win_pt = map_dpi_point( pt, get_thread_dpi(), get_dpi_for_window( list[i] ));
+        win_pt = map_dpi_point( pt, dpi, get_dpi_for_window( list[i] ));
         res = send_message( list[i], WM_NCHITTEST, 0, MAKELPARAM( win_pt.x, win_pt.y ));
         if (res != HTTRANSPARENT)
         {