result : GetEnumName (TypeInfo (TPerObjectState), Ord (AObjectState)) end Is there a way to pass the enum so that the type will not matter, so that. See alsoĬonvert a date string to a TDateTime value.Ĭonvert a time string to a TDateTime value.Ĭonverts a TDateTime value to a string using a predefined format. function ObjectStateToString (AObjectState : TPerObjectState): string begin. Converts a TDateTime value to a date string with a predefined format (String).
#Free pascal convert tdatetime to string for free
AnsiString has a variable length that is limited only by the value of High (SizeInt) (which. PSPad clip definition file for Free Pascal RTL library Autor: Andrzej. If a ShortString length is not explicitly given, then the length is implicitly set to 255.
name : String 25 ) but is limited to 255 characters. an invalid date or invalid character), an EConvertError exception is raised. ShortString has a fixed maximum length that is decided by the programmer (e.g. The order of the 3 numbers (y/m/d, m/d/y, d/m/y) is determined from the ShortDateFormat variable. The Formatting string can comprise a mix of ordinary characters (that are passed unchanged to the. The Formatting parameter defines how the Data array is manipulated into the returned string. It provides very precise control over this formatting. The following example lists a simple program that controls the GPIO pin 17 as output to switch an LED, transistor or relays. The only requirement is the BaseUnix library that is part of Free Pascal's RTL. If only one number is given, it is supposed to represent the day of the current month. The Format function provides 'C' like formatting of multiple of simple data types into a string. This method provides access to external hardware that doesn't require additional libraries.
If two numbers are given, they are supposed to form the day and month of the current year. StrToDate Converts a string with a date value into the TDateTime format. The date and time parts must be separated by a space.įor the date part, the same restrictions apply as for the StrToDate function: The Date must consist of 1 to three numbers, separated by the DateSeparator character. Free Pascal still calls the language Object Pascal, even though it is nearly. After this, use the Replace () function to replace colon (:) with an empty string in hh:mm:ss string. After this, use another Convert () function to get the hh:mm:ss string from the DateTime value. Will take a range of ISO-8601 dates and convert to DateTime, either local or UTC // Uses TryISO8601ToDate for all greater than uSec, then adds uSec back in. First, use the SQL Server Convert () function to change the DateTime expression to yyyymmdd string format. However when saving or loading a string list, with object attached to. StrToDateTime converts the string S to a TDateTime date and time value. To do that, I pack it out to micro seconds, convert that number of microseconds to a datetime and add it. Some Lazarus/Delphi Pascal components allow adding objects (AddObject) to lists. Return a string representation of a TDateTime value with a given format.StrToDateTime Ĭonvert a date/time string to a TDateTime value. Re: fpc-pascal Converting http date back to TDateTime Alexander Grotewohl Tue, 20:00:22 -0700 'Note that to include any of the above characters literally in the result string, they must be enclosed in double quotes. Typically the two last versions of Lazarus are in active use (1.4. Basically Lazarus/FPC and Delphi are the only really active native Pascal products. A string is not an object btw, but a first class native type. In case a wrong formatting character is found, an EConvertError is raised. Both work in FPC and Delphi, though inttostr might require a object oriented (Delphi alike) mode in FPC. Note that on unix systems, the localization support must be enabled explicitly, see Localization.
Note that for 'c', if the time part is 0 (i.e. The date string must adhere to the format of the ShortDateFormat. DeclarationĭateTimeToString returns in Result a string representation of DateTime using the formatting specified in FormatStr.įor a list of characters that can be used in the FormatStr formatting string, see formatchars. The StrToDate function attempts to convert a date as a string Date into a TDateTime value. DateTimeToString Ĭonverts a TDateTime value to a string with a given format.