The WINDOW_BUFFER_SIZE_RECORD structure is used in a console INPUT_RECORD structure to report changes in the size of the screen buffer.
typedef struct _WINDOW_BUFFER_SIZE_RECORD { // wbsr
COORD dwSize;
} WINDOW_BUFFER_SIZE_RECORD;
Buffer size events are placed in the input buffer when the console is in window-aware mode (ENABLE_WINDOW_INPUT).
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in wincon.h.
Consoles and Character-Mode Support Overview, Console Structures, INPUT_RECORD, ReadConsoleInput