Nikolay Sivov <nsi...@codeweavers.com> wrote: > >> + case WM_WINDOWPOSCHANGING: > >> + { > >> + HWND parent = GetParent(hwnd); > >> + if (parent) infoPtr->hwndNotify = parent; > >> + return DefWindowProcW(hwnd, uMsg, wParam, lParam); > >> + } > > What if an application subclasses tab and doesn't pass WM_WINDOWPOSCHANGING > > to the original proc? > Then it will fail just like it does currently, and will work for the > rest of the applications.
Is it really supposed to fail? > > Why not just call GetParent() every time when a > > notification is being sent? > Because it won't work if you create a control without WS_CHILD. How is that different from the WM_WINDOWPOSCHANGING handler? -- Dmitry.