winpr/include/winpr/timezone.h

 
#ifndef WINPR_TIMEZONE_H
#define WINPR_TIMEZONE_H
 
#include <winpr/winpr.h>
#include <winpr/wtypes.h>
 
#include <winpr/windows.h>
 
#ifdef __cplusplus
extern "C"
{
#endif
 
#ifndef _WIN32
 
  typedef struct
  {
    LONG Bias;
    WCHAR StandardName[32];
    SYSTEMTIME StandardDate;
    LONG StandardBias;
    WCHAR DaylightName[32];
    SYSTEMTIME DaylightDate;
    LONG DaylightBias;
  } TIME_ZONE_INFORMATION, *PTIME_ZONE_INFORMATION, *LPTIME_ZONE_INFORMATION;
 
  typedef struct
  {
    LONG Bias;
    WCHAR StandardName[32];
    SYSTEMTIME StandardDate;
    LONG StandardBias;
    WCHAR DaylightName[32];
    SYSTEMTIME DaylightDate;
    LONG DaylightBias;
    WCHAR TimeZoneKeyName[128];
    BOOLEAN DynamicDaylightTimeDisabled;
  } DYNAMIC_TIME_ZONE_INFORMATION, *PDYNAMIC_TIME_ZONE_INFORMATION,
      *LPDYNAMIC_TIME_ZONE_INFORMATION;
 
#define TIME_ZONE_ID_UNKNOWN 0
#define TIME_ZONE_ID_STANDARD 1
#define TIME_ZONE_ID_DAYLIGHT 2
  WINPR_API DWORD GetTimeZoneInformation(LPTIME_ZONE_INFORMATION lpTimeZoneInformation);
 
  WINPR_ATTR_NODISCARD
  WINPR_API BOOL SetTimeZoneInformation(const TIME_ZONE_INFORMATION* lpTimeZoneInformation);
 
  WINPR_ATTR_NODISCARD
  WINPR_API BOOL SystemTimeToFileTime(const SYSTEMTIME* lpSystemTime, LPFILETIME lpFileTime);
 
  WINPR_ATTR_NODISCARD
  WINPR_API BOOL FileTimeToSystemTime(const FILETIME* lpFileTime, LPSYSTEMTIME lpSystemTime);
 
  WINPR_ATTR_NODISCARD
  WINPR_API BOOL SystemTimeToTzSpecificLocalTime(LPTIME_ZONE_INFORMATION lpTimeZone,
                                                 LPSYSTEMTIME lpUniversalTime,
                                                 LPSYSTEMTIME lpLocalTime);
 
  WINPR_ATTR_NODISCARD
  WINPR_API BOOL TzSpecificLocalTimeToSystemTime(LPTIME_ZONE_INFORMATION lpTimeZoneInformation,
                                                 LPSYSTEMTIME lpLocalTime,
                                                 LPSYSTEMTIME lpUniversalTime);
 
#endif
 
/*
 * GetDynamicTimeZoneInformation is provided by the SDK if _WIN32_WINNT >= 0x0600 in SDKs above 7.1A
 * and incorrectly if _WIN32_WINNT >= 0x0501 in older SDKs
 */
#if !defined(_WIN32) ||                                                  \
    (defined(_WIN32) && (defined(NTDDI_WIN8) && _WIN32_WINNT < 0x0600 || \
                         !defined(NTDDI_WIN8) && _WIN32_WINNT < 0x0501)) /* Windows Vista */
 
  WINPR_API DWORD
  GetDynamicTimeZoneInformation(PDYNAMIC_TIME_ZONE_INFORMATION pTimeZoneInformation);
 
  WINPR_ATTR_NODISCARD
  WINPR_API BOOL
  SetDynamicTimeZoneInformation(const DYNAMIC_TIME_ZONE_INFORMATION* lpTimeZoneInformation);
 
  WINPR_ATTR_NODISCARD
  WINPR_API BOOL GetTimeZoneInformationForYear(USHORT wYear, PDYNAMIC_TIME_ZONE_INFORMATION pdtzi,
                                               LPTIME_ZONE_INFORMATION ptzi);
 
#endif
 
#if !defined(_WIN32) || (defined(_WIN32) && (_WIN32_WINNT < 0x0601)) /* Windows 7 */
 
  WINPR_ATTR_NODISCARD
  WINPR_API BOOL
  SystemTimeToTzSpecificLocalTimeEx(const DYNAMIC_TIME_ZONE_INFORMATION* lpTimeZoneInformation,
                                    const SYSTEMTIME* lpUniversalTime, LPSYSTEMTIME lpLocalTime);
 
  WINPR_ATTR_NODISCARD
  WINPR_API BOOL
  TzSpecificLocalTimeToSystemTimeEx(const DYNAMIC_TIME_ZONE_INFORMATION* lpTimeZoneInformation,
                                    const SYSTEMTIME* lpLocalTime, LPSYSTEMTIME lpUniversalTime);
 
#endif
 
#if !defined(_WIN32) || (defined(_WIN32) && (_WIN32_WINNT < 0x0602)) /* Windows 8 */
 
  WINPR_ATTR_NODISCARD
  WINPR_API DWORD EnumDynamicTimeZoneInformation(
      DWORD dwIndex, PDYNAMIC_TIME_ZONE_INFORMATION lpTimeZoneInformation);
 
  WINPR_ATTR_NODISCARD
  WINPR_API DWORD GetDynamicTimeZoneInformationEffectiveYears(
      const DYNAMIC_TIME_ZONE_INFORMATION* lpTimeZoneInformation, LPDWORD FirstYear,
      LPDWORD LastYear);
 
#else
#pragma comment(lib, "advapi32")
#endif
 
#ifdef __cplusplus
}
#endif
 
#endif /* WINPR_TIMEZONE_H */