Function DeleteAllMessages

src/window.cpp:3371–3377

* Delete all messages and close their corresponding window (if any). */

 * Delete all messages and close their corresponding window (if any).
 */
void DeleteAllMessages()
{
	InitNewsItemStructs();
	InvalidateWindowData(WC_STATUS_BAR, 0, SBI_NEWS_DELETED); // invalidate the statusbar
	InvalidateWindowData(WC_MESSAGE_HISTORY, 0); // invalidate the message history
	CloseWindowById(WC_NEWS_WINDOW, 0); // close newspaper or general message window if shown
}

/**
 * Close all windows that are used for construction of vehicle etc.