Системные сообщения
| WM_COMPACTING | WM_QUEUESYNC |
| WM_DEVMODECHANGE | WM_SPOOLERSTATUS |
| WM_ENTERIDLE | WM_SYSCOLORCHANGE |
| WM_FONTCHANGE | WM_SYSCOMMAND |
| WM_NULL | WM_TIMECHANGE |
| WM_PALETTECHANGED | WM_WININICHANGE |
| WM_PALETTEISCHANGING | WM_POWER |
Четвертый BORLAND С++ и его окружение