Table of Contents
Note: This API call is for DOS and Win16 personality only. Use Family API for portability.
Int 21H, AH=57H, AL=00H
Version
2 and higher
Brief
GET FILE'S LAST-WRITTEN DATE AND TIME
Family API
Input
AX = 5700h BX = file handle
Return
CF clear if successful
CX = file's time (see #01665)
DX = file's date (see #01666)
CF set on error
AX = error code (01h,06h) (see #01680)
Notes
under DR DOS 3.41 and 5.0, this function returns 0 (no date/time) for character devices; MS-DOS returns date and time of opening
Bitfields for file time:
| Bit(s) | Description |
|---|---|
| 15-11 | hours (0-23) |
| 10-5 | minutes |
| 4-0 | seconds/2 |
Bitfields for file date:
| Bit(s) | Description |
|---|---|
| 15-9 | year - 1980 |
| 8-5 | month |
| 4-0 | day |
Note
Text based on Ralf Brown Interrupt List Release 61
| osFree Macro Library | |
|---|---|
| Video I/O | @SetMode @SetCurSz @SetCurPos @GetCur @SetPage @ScrollUp @ScrollDn @Scroll @GetChAtr @PutChAtr @PutCh @SetPalet @SetColor @SetDot @GetDot @WrtTTY @VideoState @GetMode @GetDisplay @GetVideoState @GetEGAInfo @Cls |
| Hardware info | @Equipment @MemSize |
| Serial I/O | @AuxInit @AuxSendChar @AuxRecieveChar @AuxStatus |
| Tape I/O | @TapeOn @TapeOff @TapeRead @TapeWrite |
| Keyboard I/O | @KbdStatus @CharIn @CharPeek |
| Printer I/O | @PrnPrint @PrnInit @PrnStatus |
| Disk I/O | @DskReset @DskStatus @DskRead @DskWrite @DskVerify @DskFormat |
| Date and Time | @SetTime @GetTime |
| Mouse | @MouInit @MouShowPointer @MouStatus @MouSetPos @MouSetMickey @MouRegion |
| Memory manager | @ModBlok SET_BLOCK |