Unit Timezone
From Ultibo.org
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Description
Ultibo Timezone interface unit
To be documented
Constants
Timezone specific constants
TIME_ZONE_* TIME_ZONE_ID_UNKNOWN = 0;
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TIME_ZONE_ID_STANDARD = 1;
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TIME_ZONE_ID_DAYLIGHT = 2;
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TIME_ZONE_ID_INVALID = DWORD($FFFFFFFF);
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Timezone signature constants
TIMEZONE_SIGNATURE_* TIMEZONE_SIGNATURE = $ED9A1BC3;
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Type definitions
System time
LPSYSTEMTIME = ^SYSTEMTIME;
SYSTEMTIME = _SYSTEMTIME;
TSystemTime = SYSTEMTIME;
PSystemTime = LPSYSTEMTIME;
_SYSTEMTIME = record
wYear:Word;
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wMonth:Word;
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wDayOfWeek:Word;
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wDay:Word;
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wHour:Word;
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wMinute:Word;
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wSecond:Word;
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wMilliseconds:Word;
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Timezone information
TIME_ZONE_INFORMATION = _TIME_ZONE_INFORMATION;
LPTIME_ZONE_INFORMATION = ^TIME_ZONE_INFORMATION;
TTimeZoneInformation = TIME_ZONE_INFORMATION;
PTimeZoneInformation = PTIME_ZONE_INFORMATION;
PTIME_ZONE_INFORMATION = ^TIME_ZONE_INFORMATION;
_TIME_ZONE_INFORMATION = record
Bias:LONG;
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StandardName:array [0..31] of WCHAR;
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StandardDate:SYSTEMTIME;
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StandardBias:LONG;
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DaylightName:array [0..31] of WCHAR;
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DaylightDate:SYSTEMTIME;
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DaylightBias:LONG;
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Timezone data
PTimezoneData = ^TTimezoneData;
TTimezoneData = record
Name:String[32];
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Description:String[64];
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Bias:LongInt;
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StandardName:String[32];
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StandardBias:LongInt;
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StandardStart:TSystemTime;
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DaylightName:String[32];
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DaylightBias:LongInt;
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DaylightStart:TSystemTime;
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Timezone enumeration callback
TTimezoneEnumerate = function(Timezone:PTimezoneEntry; Data:Pointer):LongWord;
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Timezone entry
PTimezoneEntry = ^TTimezoneEntry;
TTimezoneEntry = record
| Timezone Properties | |
Signature:LongWord;
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Signature for entry validation |
Name:String;
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Description:String;
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Bias:LongInt;
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StandardName:String;
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StandardBias:LongInt;
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StandardStart:TSystemTime;
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DaylightName:String;
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DaylightBias:LongInt;
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DaylightStart:TSystemTime;
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| Internal Properties | |
Prev:PTimezoneEntry;
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Previous entry in Timezone table |
Next:PTimezoneEntry;
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Next entry in Timezone table |
Public variables
None defined
Function declarations
Initialization functions
procedure TimezoneInit;
Description: To be documented
| Note | None documented |
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Timezone functions
function TimezoneAdd(Data:PTimezoneData; Default:Boolean):LongWord;
Description: Add a Timezone from a timezone data block and to the Timezone table
| Note | None documented |
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function TimezoneDelete(Timezone:PTimezoneEntry):LongWord;
Description: To be documented
| Note | None documented |
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function TimezoneGetName(Timezone:PTimezoneEntry):String;
Description: To be documented
| Note | None documented |
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function TimezoneGetDescription(Timezone:PTimezoneEntry):String;
Description: To be documented
| Note | None documented |
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function TimezoneGetBias(Timezone:PTimezoneEntry):LongInt;
Description: To be documented
| Note | None documented |
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function TimezoneGetState(Timezone:PTimezoneEntry):LongWord;
Description: To be documented
| Note | None documented |
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function TimezoneGetActiveBias(Timezone:PTimezoneEntry):LongInt;
Description: To be documented
| Note | None documented |
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function TimezoneGetStandardName(Timezone:PTimezoneEntry):String;
Description: To be documented
| Note | None documented |
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function TimezoneGetStandardBias(Timezone:PTimezoneEntry):LongInt;
Description: To be documented
| Note | None documented |
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function TimezoneGetStandardDate(Timezone:PTimezoneEntry; Next:Boolean):TDateTime;
Description: To be documented
| Note | None documented |
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function TimezoneGetStandardStart(Timezone:PTimezoneEntry):TSystemTime;
Description: To be documented
| Note | None documented |
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function TimezoneGetDaylightName(Timezone:PTimezoneEntry):String;
Description: To be documented
| Note | None documented |
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function TimezoneGetDaylightBias(Timezone:PTimezoneEntry):LongInt;
Description: To be documented
| Note | None documented |
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function TimezoneGetDaylightDate(Timezone:PTimezoneEntry; Next:Boolean):TDateTime;
Description: To be documented
| Note | None documented |
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function TimezoneGetDaylightStart(Timezone:PTimezoneEntry):TSystemTime;
Description: To be documented
| Note | None documented |
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function TimezoneFind(const Name:String):PTimezoneEntry;
Description: To be documented
| Note | None documented |
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function TimezoneEnumerate(Callback:TTimezoneEnumerate; Data:Pointer):LongWord;
Description: To be documented
| Note | None documented |
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Timezone helper functions
function TimezoneGetCount:LongWord; inline;
Description: Get the current timezone count
| Note | None documented |
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function TimezoneGetDefault:PTimezoneEntry; inline;
Description: Get the current default timezone
| Note | None documented |
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function TimezoneSetDefault(Timezone:PTimezoneEntry):LongWord;
Description: Set the current default timezone
| Note | None documented |
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function TimezoneCheck(Timezone:PTimezoneEntry):PTimezoneEntry;
Description: Check if the supplied Timezone is in the Timezone table
| Note | None documented |
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function TimezoneUpdateOffset:LongWord;
Description: To be documented
| Note | None documented |
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function TimezoneStartToDateTime(const AStart:TSystemTime; AYear:Word):TDateTime;
Description: Calculate the start date and time from the start date of a timezone
| Note | None documented |
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function TimezoneStartToDescription(const AStart:TSystemTime):String;
Description: Get the description of the start date of a timezone
| Note | None documented |
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function TimezoneNameReplaceChar(const AName:String; AChar,AReplace:Char):String;
Description: Same as ReplaceChar in UltiboUtils, reproduced here to avoid including extra units
| Note | None documented |
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