WINDOW_BUFFER_SIZE_RECORD

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 {
    COORD dwSize;
} WINDOW_BUFFER_SIZE_RECORD;

dwSize

Size of the screen buffer, in character cell columns and rows.

Buffer size events are placed in the input buffer when the console is in window-aware mode (ENABLE_WINDOW_INPUT).