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GetDateFormat (kernel32)
.
C# Signature:
[DllImport("kernel32.dll")]
static extern int GetDateFormat(uint locale, uint dwFlags, IntPtr lpDate, string frmat, StringBuilder sb, int sbSize);
User-Defined Types:
None.
Notes:
Win32 interpret format differently than CLR so if you don't need exactly Win32 compatible behavior use DateTime.ToString() instead.
Tips & Tricks:
SYSTEMTIME is different from DateTime so to call GetDateFormat() I declared my own SystemTime struct and changed signature to accept it:
[DllImport("kernel32.dll")]
static extern int GetDateFormat(uint locale, uint dwFlags, ref SystemTime date, string format, StringBuilder sb, int sbSize);
Sample Code:
using System;
using System.Text;
using System.Globalization;
using System.Runtime.InteropServices;
class Test {
[DllImport("kernel32.dll")]
static extern int GetDateFormat(int locale, uint dwFlags, ref SystemTime sysTime,
string lpFormat, StringBuilder lpDateStr, int cchDate
);
[StructLayout(LayoutKind.Sequential)]
private struct SystemTime {
[MarshalAs(UnmanagedType.U2)] public ushort Year;
[MarshalAs(UnmanagedType.U2)] public ushort Month;
[MarshalAs(UnmanagedType.U2)] public ushort DayOfWeek;
[MarshalAs(UnmanagedType.U2)] public ushort Day;
[MarshalAs(UnmanagedType.U2)] public ushort Hour;
[MarshalAs(UnmanagedType.U2)] public ushort Minute;
[MarshalAs(UnmanagedType.U2)] public ushort Second;
[MarshalAs(UnmanagedType.U2)] public ushort Milliseconds;
Represents a date and time using individual members for the month, day, year, weekday, hour, minute, second, and millisecond.
9/30/2021 1:01:31 PM - -45.137.113.229
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