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// Declares a class member for each structure element.
[ StructLayout( LayoutKind.Sequential )]
public class SystemTime
{
public ushort year;
...
public ushort milliseconds;
}
public class LibWrap
{
// Declares a managed prototype for the unmanaged function.
[ DllImport( "Kernel32.dll" )]
public static extern void GetSystemTime( [In,Out] SystemTime st );
}
[VB.net]
Imports System.Runtime.InteropServices
'Declare Sructure for SytemTime so you can access all parts
<StructLayout(LayoutKind.Sequential)> _
Public Structure SYSTEMTIME
Public wYear As Short
Public wMonth As Short
Public wDayOfWeek As Short
Public wDay As Short
Public wHour As Short
Public wMinute As Short
Public wSecond As Short
Public wMilliseconds As Short
End Structure
'Declare Sub to call GetSystemTime
Private Declare Sub GetSystemTime Lib "kernel32" Alias "GetSystemTime" (ByRef lpSystemTime As SYSTEMTIME)
'Test It
Private Sub Test()
Dim sysTime As SYSTEMTIME
GetSystemTime(sysTime)
MessageBox.Show(sysTime.wMilliseconds.ToString())
End Sub
Alternative Managed API:
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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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