Functions Delphi

function IncMillisecond ( const StartDateTime : TDateTime {; NumberOfMilliSeconds : Integer = 1} ) : TDateTime;


Description
The IncMillisecond function returns a TDateTime value that is NumberOfMilliSeconds greater than the passed StartDateTime value.

The year, month, day and hour values are incremented as appropriate.

The increment value is optional, being 1 by default.

Notes
There is no DecMillisecond function.
Instead, use IncMillisecond with a negative increment.


Related commands
IncYear Increments a TDateTime variable by a number of years
IncMonth Increments a TDateTime variable by a number of months
IncDay Increments a TDateTime variable by + or - number of days
IncMinute Increments a TDateTime variable by + or - number of minutes
IncSecond Increments a TDateTime variable by + or - number of seconds

Example code : A simple example of increment and decrement
var
myDate : TDateTime;
begin
// Set up our date to the start of 2006
myDate := EncodeDateTime(2006, 1, 1, 0, 0, 0, 0);
ShowMessage('myDate = '+DateTimeToStr(myDate));
// Add 5000 milliseconds to this date
myDate := IncMillisecond(myDate, 5000);
ShowMessage('myDate + 5000 milliseconds = '+DateTimeToStr(myDate));
// Subtract 2000 milliseconds from this date
myDate := IncMillisecond(myDate, -2000);
ShowMessage('myDate - 2000 milliseconds = '+DateTimeToStr(myDate));
end;

Show full unit code
myDate = 01/01/2006
myDate = 01/01/2006 00:00:05
myDate = 01/01/2006 00:00:03