GetTimeZoneInformation-Funktion Diese Funktion ermittelt die Zeitzoneninformationen des Systems.
Betriebssystem:  Win95, Win98, WinNT 3.1, Win2000, WinME	Views:  3.074

Deklaration:

Declare Function GetTimeZoneInformation Lib "kernel32.dll"  ( _
  lpTimeZoneInformation As TIME_ZONE_INFORMATION) As Long

Beschreibung:
Diese Funktion ermittelt die Zeitzoneninformationen des Systems.

Parameter:

lpTimeZoneInformation

Erwartet eine TIME_ZONE_INFORMATION-Struktur die mit den Zeitzonen Einstellungen des System gefüllt wird.

Rückgabewert:
Ist die Funktion erfolgreich, so wird der Wert "1" zurückgegeben, andernfalls derWert "0".

Beispiel:

Private Declare Function GetTimeZoneInformation Lib "kernel32.dll"  ( _
  lpTimeZoneInformation As TIME_ZONE_INFORMATION) As Long
Private Declare Function WideCharToMultiByte Lib "kernel32" ( _
  ByVal CodePage  As Long, _
  ByVal dwFlags As Long, _
  ByVal lpWideCharStr As String, _
  ByVal cchWideChar As Long, _
  ByVal lpMultiByteStr As String, _
  ByVal cchMultiByte As Long, _
  ByVal lpDefaultChar As String, _
  ByVal lpUsedDefaultChar As Long) As Long 
 
Private Type SYSTEMTIME
  wYear As Integer
  wMonth As Integer
  wDayOfWeek As Integer
  wDay As Integer
  wHour As Integer
  wMinute As Integer
  wSecond As Integer
  wMilliseconds As Integer
End Type
 
Private Type TIME_ZONE_INFORMATION
  Bias As Long
  StandardName As String * 64
  StandardDate As SYSTEMTIME
  StandardBias As Long
  DaylightName As String * 64
  DaylightDate As SYSTEMTIME
  DaylightBias As Long
End Type

' Zeitzoneninformationen ermitteln
Private Sub Command1_Click()
  Dim Retval As Long, TZ As TIME_ZONE_INFORMATION, TmpOut As String * 32
 
  ' Zeitzoneninformationen ermitteln
  Retval = GetTimeZoneInformation(TZ)
 
  ' Zeitzonenname von WideChar in einen lesbaren String konvertieren
  Retval = WideCharToMultiByte(0&, 0&, TZ.StandardName, 64, TmpOut, 32,  _
  "", 0&)
  Debug.Print Left$(TmpOut, InStr(1, TmpOut, vbNullChar) - 1)
 
  ' Sommerzeitname von WideChar in einen lesbaren String konvertieren
  Retval = WideCharToMultiByte(0&, 0&, TZ.DaylightName, 64, TmpOut, 32,  _
  "", 0&)
  Debug.Print Left$(TmpOut, InStr(1, TmpOut, vbNullChar) - 1)
End Sub