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CoDosDateTimeToFileTime

Converts the MS-DOS representation of the time and date to a FILETIME structure, which Win32 uses to determine the date and time.

BOOL CoDosDateTimeToFileTime(

WORD nDosDate,
//The 16-bit MS-DOS date
WORD nDosTime,
//The 16-bit MS-DOS time
FILETIME * lpFileTime
//Pointer to the FILETIME structure
);

Parameters

nDosDate

Specifies the 16-bit MS-DOS date.

nDosTime

Specifies the 16-bit MS-DOS time.

lpFileTime

Points to the FILETIME structure.

Return Values

TRUE

Indicates the FILETIME structure was created successfully.

FALSE

Indicates the FILETIME structure was not created successfully, probably because of invalid arguments.

Comments

The FILETIME structure and the CoDosDateTimeToFileTime and CoFileTimeToDosDateTime functions are part of the Win32 API definition. They are provided for compatibility in all OLE implementations, but are redundant on Win32 platforms.

MS-DOS records file dates and times as packed 16-bit values. An MS-DOS date has the following format:

Bits
Contents
0-4
Days of the month (1-31).
5-8
Months (1 = January, 2 = February, and so forth).
9-15
Year offset from 1980 (add 1980 to get actual year).

An MS-DOS time has the following format:

Bits
Contents
0-4
Seconds divided by 2.
5-10
Minutes (0-59).
11-15
Hours (0-23 on a 24-hour clock).

See Also

CoFileTimeToDosDateTime, CoFileTimeNow

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