Check whether two TDateTimes are only a number of minutes apart.
Source position: dateutil.inc line 270
function WithinPastMinutes( |
const ANow: TDateTime; |
const AThen: TDateTime; |
const AMinutes: Int64 |
):Boolean; |
ANow |
|
First moment in time. |
AThen |
|
Second moment in time. |
AMinutes |
|
Number of minutes to check. |
True if ANow and Athen are only AMinutes apart, false otherwise.
WithinPastMinutes compares the timestamps ANow and AThen and returns True if the difference between them is at most AMinutes minutes apart, or False if they are further apart.
| Remark: | Since this function uses the MinutesBetween function to calculate the difference in Minutes, this means that fractional minutes do not count, and the fractional part is simply dropped, so for two dates actually 2 and a half minutes apart, the result will also be True |
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Check whether two TDateTimes are only a number of years apart. |
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Check whether two TDateTimes are only a number of months apart. |
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Check whether two TDateTimes are only a number of weeks apart. |
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Check whether two TDateTimes are only a number of days apart. |
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Check whether two TDateTimes are only a number of hours apart. |
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Check whether two TDateTimes are only a number of seconds apart. |
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Check whether two TDateTimes are only a number of milliseconds apart. |
Program Example52; { This program demonstrates the WithinPastMinutes function } Uses SysUtils,DateUtils; Procedure Test(ANow,AThen : TDateTime; AMinutes : Integer); begin Write(DateTimeToStr(AThen),' and ',DateTimeToStr(ANow)); Write(' are within ',AMinutes,' Minutes: '); Writeln(WithinPastMinutes(ANow,AThen,AMinutes)); end; Var D1,D2 : TDateTime; Begin D1:=Now; D2:=D1-(59*OneSecond); Test(D1,D2,1); D2:=D1-(61*OneSecond); Test(D1,D2,1); D2:=D1-(122*OneSecond); Test(D1,D2,1); D2:=D1-(306*OneSecond); Test(D1,D2,5); D2:=D1-(5.4*OneMinute); Test(D1,D2,5); D2:=D1-(2.5*OneMinute); Test(D1,D2,1); Test(D1,D2,2); Test(D1,D2,3); End.