Unit Timezone

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Description


To be documented

Constants



Timezone specific constants TIME_ZONE_*
TIME_ZONE_ID_UNKNOWN = 0;  
TIME_ZONE_ID_STANDARD = 1;  
TIME_ZONE_ID_DAYLIGHT = 2;  
TIME_ZONE_ID_INVALID = DWORD($FFFFFFFF);  


Timezone signature constants TIMEZONE_SIGNATURE_*
TIMEZONE_SIGNATURE = $ED9A1BC3;  


Type definitions


To be documented

Public variables


To be documented

Function declarations


Initialization functions

procedure TimezoneInit;
Description: To be documented
Note None documented


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


function TimezoneDelete(Timezone:PTimezoneEntry):LongWord;
Description: To be documented
Note None documented


function TimezoneGetName(Timezone:PTimezoneEntry):String;
Description: To be documented
Note None documented


function TimezoneGetDescription(Timezone:PTimezoneEntry):String;
Description: To be documented
Note None documented


function TimezoneGetBias(Timezone:PTimezoneEntry):LongInt;
Description: To be documented
Note None documented


function TimezoneGetState(Timezone:PTimezoneEntry):LongWord;
Description: To be documented
Note None documented


function TimezoneGetActiveBias(Timezone:PTimezoneEntry):LongInt;
Description: To be documented
Note None documented


function TimezoneGetStandardName(Timezone:PTimezoneEntry):String;
Description: To be documented
Note None documented


function TimezoneGetStandardBias(Timezone:PTimezoneEntry):LongInt;
Description: To be documented
Note None documented


function TimezoneGetStandardDate(Timezone:PTimezoneEntry; Next:Boolean):TDateTime;
Description: To be documented
Note None documented


function TimezoneGetStandardStart(Timezone:PTimezoneEntry):TSystemTime;
Description: To be documented
Note None documented


function TimezoneGetDaylightName(Timezone:PTimezoneEntry):String;
Description: To be documented
Note None documented


function TimezoneGetDaylightBias(Timezone:PTimezoneEntry):LongInt;
Description: To be documented
Note None documented


function TimezoneGetDaylightDate(Timezone:PTimezoneEntry; Next:Boolean):TDateTime;
Description: To be documented
Note None documented


function TimezoneGetDaylightStart(Timezone:PTimezoneEntry):TSystemTime;
Description: To be documented
Note None documented


function TimezoneFind(const Name:String):PTimezoneEntry;
Description: To be documented
Note None documented


function TimezoneEnumerate(Callback:TTimezoneEnumerate; Data:Pointer):LongWord;
Description: To be documented
Note None documented


Timezone helper functions

function TimezoneGetCount:LongWord; inline;
Description: Get the current timezone count
Note None documented


function TimezoneGetDefault:PTimezoneEntry; inline;
Description: Get the current default timezone
Note None documented


function TimezoneSetDefault(Timezone:PTimezoneEntry):LongWord;
Description: Set the current default timezone
Note None documented


function TimezoneCheck(Timezone:PTimezoneEntry):PTimezoneEntry;
Description: Check if the supplied Timezone is in the Timezone table
Note None documented


function Timezone?pdateOffset:LongWord;
Description: To be documented
Note None documented


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


function TimezoneStartToDescription(const AStart:TSystemTime):String;
Description: Get the description of the start date of a timezone
Note None documented


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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