Safe Haskell	None
Language	GHC2021

SDL3.Sys.Bindgen.Time.Unsafe

Synopsis

sDL_GetDateTimeLocalePreferences :: Ptr SDL_DateFormat -> Ptr SDL_TimeFormat -> IO CBool
sDL_GetCurrentTime :: Ptr SDL_Time -> IO CBool
sDL_TimeToDateTime :: SDL_Time -> Ptr SDL_DateTime -> CBool -> IO CBool
sDL_DateTimeToTime :: PtrConst SDL_DateTime -> Ptr SDL_Time -> IO CBool
sDL_TimeToWindows :: SDL_Time -> Ptr Uint32 -> Ptr Uint32 -> IO ()
sDL_TimeFromWindows :: Uint32 -> Uint32 -> IO SDL_Time
sDL_GetDaysInMonth :: CInt -> CInt -> IO CInt
sDL_GetDayOfYear :: CInt -> CInt -> CInt -> IO CInt
sDL_GetDayOfWeek :: CInt -> CInt -> CInt -> IO CInt

Documentation

sDL_GetDateTimeLocalePreferences Source #

Arguments

:: Ptr SDL_DateFormat	`dateFormat` a pointer to the `SDL_DateFormat` to hold the returned date format, may be NULL.
-> Ptr SDL_TimeFormat	`timeFormat` a pointer to the `SDL_TimeFormat` to hold the returned time format, may be NULL.
-> IO CBool

Gets the current preferred date and time format for the system locale.

This might be a "slow" call that has to query the operating system. It's best to ask for this once and save the results. However, the preferred formats can change, usually because the user has changed a system preference outside of your program.

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: This function is not thread safe.
C declaration: SDL_GetDateTimeLocalePreferences, defined at SDL3/SDL_time.h 113:34

Since: 3.2.0

sDL_GetCurrentTime Source #

Arguments

:: Ptr SDL_Time	`ticks` the SDL_Time to hold the returned tick count.
-> IO CBool

Gets the current value of the system realtime clock in nanoseconds since Jan 1, 1970 in Universal Coordinated Time (UTC).

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
C declaration: SDL_GetCurrentTime, defined at SDL3/SDL_time.h 127:34

Since: 3.2.0

sDL_TimeToDateTime Source #

Arguments

:: SDL_Time	`ticks` the SDL_Time to be converted.
-> Ptr SDL_DateTime	`dt` the resulting `SDL_DateTime`.
-> CBool	`localTime` the resulting `SDL_DateTime` will be expressed in local time if true, otherwise it will be in Universal Coordinated Time (UTC).
-> IO CBool

Converts an SDL_Time in nanoseconds since the epoch to a calendar time in the SDL_DateTime format.

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
C declaration: SDL_TimeToDateTime, defined at SDL3/SDL_time.h 145:34

Since: 3.2.0

sDL_DateTimeToTime Source #

Arguments

:: PtrConst SDL_DateTime	`dt` the source `SDL_DateTime`.
-> Ptr SDL_Time	`ticks` the resulting SDL_Time.
-> IO CBool

Converts a calendar time to an SDL_Time in nanoseconds since the epoch.

This function ignores the day_of_week member of the SDL_DateTime struct, so it may remain unset.

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
C declaration: SDL_DateTimeToTime, defined at SDL3/SDL_time.h 162:34

Since: 3.2.0

sDL_TimeToWindows Source #

Arguments

:: SDL_Time	`ticks` the time to convert.
-> Ptr Uint32	`dwLowDateTime` a pointer filled in with the low portion of the Windows FILETIME value.
-> Ptr Uint32	`dwHighDateTime` a pointer filled in with the high portion of the Windows FILETIME value.
-> IO ()

Converts an SDL time into a Windows FILETIME (100-nanosecond intervals since January 1, 1601).

This function fills in the two 32-bit values of the FILETIME structure.

Thread safety: It is safe to call this function from any thread.
C declaration: SDL_TimeToWindows, defined at SDL3/SDL_time.h 180:34

Since: 3.2.0

sDL_TimeFromWindows Source #

Arguments

:: Uint32	`dwLowDateTime` the low portion of the Windows FILETIME value.
-> Uint32	`dwHighDateTime` the high portion of the Windows FILETIME value.
-> IO SDL_Time

Converts a Windows FILETIME (100-nanosecond intervals since January 1, 1601) to an SDL time.

This function takes the two 32-bit values of the FILETIME structure as parameters.

Returns: the converted SDL time.
Thread safety: It is safe to call this function from any thread.
C declaration: SDL_TimeFromWindows, defined at SDL3/SDL_time.h 197:38

Since: 3.2.0

sDL_GetDaysInMonth Source #

Arguments

:: CInt	`year` the year.
-> CInt	`month` the month [1-12].
-> IO CInt

Get the number of days in a month for a given year.

Returns: the number of days in the requested month or -1 on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
C declaration: SDL_GetDaysInMonth, defined at SDL3/SDL_time.h 211:33

Since: 3.2.0

sDL_GetDayOfYear Source #

Arguments

:: CInt	`year` the year component of the date.
-> CInt	`month` the month component of the date.
-> CInt	`day` the day component of the date.
-> IO CInt

Get the day of year for a calendar date.

Returns: the day of year [0-365] if the date is valid or -1 on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
C declaration: SDL_GetDayOfYear, defined at SDL3/SDL_time.h 226:33

Since: 3.2.0

sDL_GetDayOfWeek Source #

Arguments

:: CInt	`year` the year component of the date.
-> CInt	`month` the month component of the date.
-> CInt	`day` the day component of the date.
-> IO CInt

Get the day of week for a calendar date.

Returns: a value between 0 and 6 (0 being Sunday) if the date is valid or -1 on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
C declaration: SDL_GetDayOfWeek, defined at SDL3/SDL_time.h 241:33

Since: 3.2.0