Difference between revisions of "Unit Timezone"

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----
 
----
  
−
'''Ultibo Timezone interface unit'''
+
'''Ultibo Timezone Interface unit'''
−
 
+
−
''To be documented''
+
  
 
=== Constants ===
 
=== Constants ===
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<br />
 
<br />
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
−
<div style="font-size: 14px; padding-left: 12px;">'''Timezone signature constants''' <code> TIMEZONE_SIGNATURE_* </code></div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Timezone signature''' <code> TIMEZONE_SIGNATURE_* </code></div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
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----
 
----
  
−
''To be documented''
+
 
 +
'''System time'''
 +
 
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
 +
<code>LPSYSTEMTIME = SysUtils.LPSYSTEMTIME;</code>
 +
 
 +
<code>SYSTEMTIME = SysUtils.SYSTEMTIME;</code>
 +
 
 +
<code>TSystemTime = SysUtils.TSystemTime;</code>
 +
 
 +
<code>PSystemTime = SysUtils.PSystemTime;</code>
 +
 
 +
<code>_SYSTEMTIME = SysUtils.SYSTEMTIME;</code>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>wYear:Word;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
| <code>wMonth:Word;</code>
 +
| &nbsp;
 +
|-
 +
| <code>wDayOfWeek:Word;</code>
 +
| &nbsp;
 +
|-
 +
| <code>wDay:Word;</code>
 +
| &nbsp;
 +
|-
 +
| <code>wHour:Word;</code>
 +
| &nbsp;
 +
|-
 +
| <code>wMinute:Word;</code>
 +
| &nbsp;
 +
|-
 +
| <code>wSecond:Word;</code>
 +
| &nbsp;
 +
|-
 +
| <code>wMilliseconds:Word;</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
 
 +
'''Timezone information'''
 +
 
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
 +
<code>TIME_ZONE_INFORMATION = _TIME_ZONE_INFORMATION;</code>
 +
 
 +
<code>LPTIME_ZONE_INFORMATION = ^TIME_ZONE_INFORMATION;</code>
 +
 
 +
<code>TTimeZoneInformation = TIME_ZONE_INFORMATION;</code>
 +
 
 +
<code>PTimeZoneInformation = PTIME_ZONE_INFORMATION;</code>
 +
 
 +
<code>PTIME_ZONE_INFORMATION = ^TIME_ZONE_INFORMATION;</code>
 +
 
 +
<code>_TIME_ZONE_INFORMATION = record</code>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>Bias:LONG;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
| <code>StandardName:array [0..31] of WCHAR;</code>
 +
| &nbsp;
 +
|-
 +
| <code>StandardDate:SYSTEMTIME;</code>
 +
| &nbsp;
 +
|-
 +
| <code>StandardBias:LONG;</code>
 +
| &nbsp;
 +
|-
 +
| <code>DaylightName:array [0..31] of WCHAR;</code>
 +
| &nbsp;
 +
|-
 +
| <code>DaylightDate:SYSTEMTIME;</code>
 +
| &nbsp;
 +
|-
 +
| <code>DaylightBias:LONG;</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
 
 +
'''Timezone data'''
 +
 
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
 +
<code>PTimezoneData = ^TTimezoneData;</code>
 +
 
 +
<code>TTimezoneData = record</code>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>Name:String[32];</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
| <code>Description:String[64];</code>
 +
| &nbsp;
 +
|-
 +
| <code>Bias:LongInt;</code>
 +
| &nbsp;
 +
|-
 +
| <code>StandardName:String[32];</code>
 +
| &nbsp;
 +
|-
 +
| <code>StandardBias:LongInt;</code>
 +
| &nbsp;
 +
|-
 +
| <code>StandardStart:SYSTEMTIME;</code>
 +
| &nbsp;
 +
|-
 +
| <code>DaylightName:String[32];</code>
 +
| &nbsp;
 +
|-
 +
| <code>DaylightBias:LongInt;</code>
 +
| &nbsp;
 +
|-
 +
| <code>DaylightStart:SYSTEMTIME;</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
 
 +
'''Timezone enumeration callback'''
 +
 
 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
 +
|-
 +
| <code>TTimezoneEnumerate = function(Timezone:PTimezoneEntry; Data:Pointer):LongWord;</code>
 +
| style="width: 40%;"|
 +
|-
 +
|}
 +
 
 +
'''Timezone entry'''
 +
 
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
 +
<code>PTimezoneEntry = ^TTimezoneEntry;</code>
 +
 
 +
<code>TTimezoneEntry = record</code>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
|colspan="2"|''Timezone Properties''
 +
|-
 +
| <code>Signature:LongWord;</code>
 +
| Signature for entry validation
 +
|-
 +
| <code>Name:array[0..TIMEZONE_NAME_LENGTH - 1] of Char;</code>
 +
| Timezone name
 +
|-
 +
| <code>Description:array[0..TIMEZONE_DESC_LENGTH - 1] of Char;</code>
 +
| Timezone description
 +
|-
 +
| <code>Bias:LongInt;</code>
 +
| &nbsp;
 +
|-
 +
| <code>StandardName:array[0..TIMEZONE_NAME_LENGTH - 1] of Char;</code>
 +
| Standard name
 +
|-
 +
| <code>StandardBias:LongInt;</code>
 +
| &nbsp;
 +
|-
 +
| <code>StandardStart:SYSTEMTIME;</code>
 +
| &nbsp;
 +
|-
 +
| <code>DaylightName:array[0..TIMEZONE_NAME_LENGTH - 1] of Char;</code>
 +
| Daylight name
 +
|-
 +
| <code>DaylightBias:LongInt;</code>
 +
| &nbsp;
 +
|-
 +
| <code>DaylightStart:SYSTEMTIME;</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|''Internal Properties''
 +
|-
 +
| <code>Prev:PTimezoneEntry;</code>
 +
| Previous entry in Timezone table
 +
|-
 +
| <code>Next:PTimezoneEntry;</code>
 +
| Next entry in Timezone table
 +
|-
 +
|}
 +
</div></div>
 +
<br />
  
 
=== Public variables ===
 
=== Public variables ===
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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<br />
 
<br />
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
−
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetState(Timezone:PTimezoneEntry):LongWord;</pre>
+
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetState(Timezone:PTimezoneEntry):LongWord; inline;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the state of the supplied Timezone at the current date and time</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Timezone
−
| None documented
+
| The timezone entry to get the state for
 +
|-
 +
! Return
 +
| The TIME_ZONE_ID_* constant representing the standard / daylight state of the timezone
 
|-
 
|-
 
|}
 
|}
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<br />
 
<br />
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
−
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetActiveBias(Timezone:PTimezoneEntry):LongInt;</pre>
+
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetStateEx(Timezone:PTimezoneEntry; const DateTime:TDateTime):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the state of the supplied Timezone at the specified date and time</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Timezone
−
| None documented
+
| The timezone entry to get the state for
 +
|-
 +
! DateTime
 +
| The date and time to get the state of the timezone at
 +
|-
 +
! Return
 +
| The TIME_ZONE_ID_* constant representing the standard / daylight state of the timezone
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetActiveBias(Timezone:PTimezoneEntry):LongInt; inline;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the bias (offset between UTC and Local) of the supplied Timezone at the current date and time</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Timezone
 +
| The timezone entry to get the bias for
 +
|-
 +
! Return
 +
| The bias in minutes offset between UTC and Local including any daylight bias if active
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetActiveBiasEx(Timezone:PTimezoneEntry; const DateTime:TDateTime):LongInt;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the bias (offset between UTC and Local) of the supplied Timezone at the specified date and time</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Timezone
 +
| The timezone entry to get the bias for
 +
|-
 +
! DateTime
 +
| The date and time to get the bias of the timezone at
 +
|-
 +
! Return
 +
| The bias in minutes offset between UTC and Local
 
|-
 
|-
 
|}
 
|}
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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<br />
 
<br />
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
−
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetStandardStart(Timezone:PTimezoneEntry):TSystemTime;</pre>
+
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetStandardStart(Timezone:PTimezoneEntry):SYSTEMTIME;</pre>
 
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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<br />
 
<br />
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
−
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetDaylightStart(Timezone:PTimezoneEntry):TSystemTime;</pre>
+
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetDaylightStart(Timezone:PTimezoneEntry):SYSTEMTIME;</pre>
 
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function TimezoneFindByStandard(const StandardName:String):PTimezoneEntry;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function TimezoneFindByDaylight(const DaylightName:String):PTimezoneEntry;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
−
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetCount:LongWord; inline;</pre>
+
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetCount:LongWord;</pre>
 
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the current timezone count</div>
 
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the current timezone count</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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<br />
 
<br />
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
−
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetDefault:PTimezoneEntry; inline;</pre>
+
<pre style="border: 0; padding-bottom:0px;">function TimezoneGetDefault:PTimezoneEntry;</pre>
 
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the current default timezone</div>
 
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the current default timezone</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
|-
 
|-
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{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! Note
 
| None documented
 
| None documented
 
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<pre style="border: 0; padding-bottom:0px;">function TimezoneStartToDateTime(const AStart:TSystemTime; AYear:Word):TDateTime;</pre>
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<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Calculate the start date and time from the start date of a timezone</div>
 
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Calculate the start date and time from the start date of a timezone</div>
 
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<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the description of the start date of a timezone</div>
 
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Latest revision as of 04:31, 12 September 2023

Return to Unit Reference


Description

Ultibo Timezone Interface unit

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 TIMEZONE_SIGNATURE_*
TIMEZONE_SIGNATURE = $ED9A1BC3;  


Type definitions


System time

LPSYSTEMTIME = SysUtils.LPSYSTEMTIME;

SYSTEMTIME = SysUtils.SYSTEMTIME;

TSystemTime = SysUtils.TSystemTime;

PSystemTime = SysUtils.PSystemTime;

_SYSTEMTIME = SysUtils.SYSTEMTIME;

wYear:Word;  
wMonth:Word;  
wDayOfWeek:Word;  
wDay:Word;  
wHour:Word;  
wMinute:Word;  
wSecond:Word;  
wMilliseconds:Word;  

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;  
StandardName:array [0..31] of WCHAR;  
StandardDate:SYSTEMTIME;  
StandardBias:LONG;  
DaylightName:array [0..31] of WCHAR;  
DaylightDate:SYSTEMTIME;  
DaylightBias:LONG;  

Timezone data

PTimezoneData = ^TTimezoneData;

TTimezoneData = record

Name:String[32];  
Description:String[64];  
Bias:LongInt;  
StandardName:String[32];  
StandardBias:LongInt;  
StandardStart:SYSTEMTIME;  
DaylightName:String[32];  
DaylightBias:LongInt;  
DaylightStart:SYSTEMTIME;  

Timezone enumeration callback

TTimezoneEnumerate = function(Timezone:PTimezoneEntry; Data:Pointer):LongWord;

Timezone entry

PTimezoneEntry = ^TTimezoneEntry;

TTimezoneEntry = record

Timezone Properties
Signature:LongWord; Signature for entry validation
Name:array[0..TIMEZONE_NAME_LENGTH - 1] of Char; Timezone name
Description:array[0..TIMEZONE_DESC_LENGTH - 1] of Char; Timezone description
Bias:LongInt;  
StandardName:array[0..TIMEZONE_NAME_LENGTH - 1] of Char; Standard name
StandardBias:LongInt;  
StandardStart:SYSTEMTIME;  
DaylightName:array[0..TIMEZONE_NAME_LENGTH - 1] of Char; Daylight name
DaylightBias:LongInt;  
DaylightStart:SYSTEMTIME;  
Internal Properties
Prev:PTimezoneEntry; Previous entry in Timezone table
Next:PTimezoneEntry; Next entry in Timezone table


Public variables

None defined

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; inline;
Description: Get the state of the supplied Timezone at the current date and time
Timezone The timezone entry to get the state for
Return The TIME_ZONE_ID_* constant representing the standard / daylight state of the timezone 


function TimezoneGetStateEx(Timezone:PTimezoneEntry; const DateTime:TDateTime):LongWord;
Description: Get the state of the supplied Timezone at the specified date and time
Timezone The timezone entry to get the state for
DateTime The date and time to get the state of the timezone at
Return The TIME_ZONE_ID_* constant representing the standard / daylight state of the timezone 


function TimezoneGetActiveBias(Timezone:PTimezoneEntry):LongInt; inline;
Description: Get the bias (offset between UTC and Local) of the supplied Timezone at the current date and time
Timezone The timezone entry to get the bias for
Return The bias in minutes offset between UTC and Local including any daylight bias if active 


function TimezoneGetActiveBiasEx(Timezone:PTimezoneEntry; const DateTime:TDateTime):LongInt;
Description: Get the bias (offset between UTC and Local) of the supplied Timezone at the specified date and time
Timezone The timezone entry to get the bias for
DateTime The date and time to get the bias of the timezone at
Return The bias in minutes offset between UTC and Local 


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):SYSTEMTIME;
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):SYSTEMTIME;
Description: To be documented
Note None documented 


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


function TimezoneFindByStandard(const StandardName:String):PTimezoneEntry;
Description: To be documented
Note None documented 


function TimezoneFindByDaylight(const DaylightName: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;
Description: Get the current timezone count
Note None documented 


function TimezoneGetDefault:PTimezoneEntry;
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 TimezoneUpdateOffset:LongWord;
Description: To be documented
Note None documented 


function TimezoneStartToDateTime(const AStart:SYSTEMTIME; AYear:Word):TDateTime;
Description: Calculate the start date and time from the start date of a timezone
Note None documented 


function TimezoneStartToDescription(const AStart:SYSTEMTIME):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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