Rémi Bernon : dinput: Forbid acquiring for other process windows.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 7a2d59fb24ae6c6458339f1e8be1a7d160fc5d3c
URL:    https://gitlab.winehq.org/wine/wine/-/commit/7a2d59fb24ae6c6458339f1e8be1a7d...

Author: Rémi Bernon 
Date:   Wed Feb 15 13:43:26 2023 +0100

dinput: Forbid acquiring for other process windows.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54431

---

dlls/dinput/device.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/dinput/device.c b/dlls/dinput/device.c
index c7b29da9271..c001d1ef29a 100644
--- a/dlls/dinput/device.c
+++ b/dlls/dinput/device.c
@@ -546,6 +546,7 @@ static HRESULT WINAPI dinput_device_Acquire( IDirectInputDevice8W *iface )
 {
     struct dinput_device *impl = impl_from_IDirectInputDevice8W( iface );
     HRESULT hr = DI_OK;
+    DWORD pid;

TRACE( "iface %p.\n", iface );

@@ -556,6 +557,8 @@ static HRESULT WINAPI dinput_device_Acquire( IDirectInputDevice8W *iface )
         hr = DIERR_INVALIDPARAM;
     else if ((impl->dwCoopLevel & DISCL_FOREGROUND) && impl->win != GetForegroundWindow())
         hr = DIERR_OTHERAPPHASPRIO;
+    else if ((impl->dwCoopLevel & DISCL_FOREGROUND) && (!GetWindowThreadProcessId( impl->win, &pid ) || pid != GetCurrentProcessId()))
+        hr = DIERR_INVALIDPARAM;
     else
     {
         impl->status = STATUS_ACQUIRED;