Zhiyi Zhang (@zhiyi) commented about dlls/win32u/driver.c:
static LONG nulldrv_ChangeDisplaySettingsEx( LPCWSTR name, LPDEVMODEW mode, HWND hwnd, DWORD flags, LPVOID lparam ) {
- return DISP_CHANGE_FAILED;
- return E_NOTIMPL;
E_NOTIMPL is for HRESULT. ERROR_CALL_NOT_IMPLEMENTED seems better.