From: Connor McAdams <cmcadams@codeweavers.com> Signed-off-by: Connor McAdams <cmcadams@codeweavers.com> --- dlls/dinput/tests/joystick8.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/dlls/dinput/tests/joystick8.c b/dlls/dinput/tests/joystick8.c index 97ac8c6003d..d52a53792d6 100644 --- a/dlls/dinput/tests/joystick8.c +++ b/dlls/dinput/tests/joystick8.c @@ -6810,6 +6810,29 @@ static void test_joystick_id( DWORD version ) check_device_joystick_id( device, i, FALSE ); IDirectInputDevice8_Release(device); + + /* + * Undocumented behavior, guessed at by seeing GUID_SysMouseEm/GUID_SysMouseEm2 + * where their Data1 values are 0x6f1d2b80/0x6f1d2b81 respectively. + * GUID_Joystick has a Data1 value of 0x6f1d2b70, which gives us 16 + * possible values before hitting GUID_SysMouseEm. This aligns with + * the maximum possible unique joystick ID being 15. + */ + if (i <= 15) + { + GUID joystick_id_guid = GUID_Joystick; + + joystick_id_guid.Data1 += i; + hr = dinput_create_device( &di, &joystick_id_guid, &device ); + todo_wine ok( hr == DI_OK, "Unexpected hr %#lx.\n", hr ); + if (device) + { + check_device_hid_serial( device, descs_bulk[i].serial_str ); + check_device_joystick_id( device, i, TRUE ); + IDirectInputDevice8_Release(device); + } + } + winetest_pop_context(); } -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/10755