You can change the tab order of the controls in your dialog box by changing the Z order of the controls. You simply use the SetWindowPos API function.
For example, suppose you want to change the tab order of controls from A, B to B, A:
HWND hPrevA = GetNextWindow(A, GW_HWNDPREV);HWND hNextB = GetNextWindow(B, GW_HWNDNEXT);SetWindowPos(B, hPrevA, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE );SetWindowPos(A, B, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE );SetWindowPos(hNextB, A, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE );