Issues a Windows "SendMessage", with lParam as a Unicode string. (Windows NT/2000/XP/2003 only)
SendMessageW( window-id/handle, message-id, wParam, lParam )
(i) window-id/handle windowed or handle to send to.
(i) Message-id message ID number (in decimal).
(i) wParam wParam value (message-specific information).
(s) lParam lParam value (message-specific information assumed to be a Unicode string).
(s) result of the message processing; it depends on the message sent.
The lParam string is copied to a GMEM_LOWER buffer, and a LPSTR to the copied string is passed as lParam. The GMEM_LOWER buffer is freed immediately upon return from the SendMessageW.
; Send WM_SETTINGCHANGE to all top-level windows ; when they make changes to system parameters HWND_BROADCAST = -1 WM_SETTINGCHANGE = 26 SendMessageW( HWND_BROADCAST, WM_SETTINGCHANGE, 0, "")