An application sends the IMC_OPENSTATUSWINDOW message to the IME window to show the status window. This message is ignored if the system is not in the show IME status mode. The user can set or clear the show IME status mode from the task bar.
msg = (UINT) WM_IME_CONTROL;
wParam = (WPARAM) IMC_OPENSTATUSWINDOW;
lParam = (LPARAM) 0;
Returns zero if successful, nonzero otherwise.
If the status window is already shown, this message does nothing. Although the application may send this message to the IME window, the application does not receive the corresponding IMN_OPENSTATUSWINDOW message.