Search
Module:
Directory

   Desktop Functions:

   Smart Device Functions:


Show Recent Changes
Subscribe (RSS)
Misc. Pages
Comments
FAQ
Helpful Tools
Playground
Suggested Reading
Website TODO List
Support Forum
Download Visual Studio Add-In

Terms of Use
Privacy Policy
getsystemtime (kernel32)
 
.
Summary
Retrieves the current system date and time. The system time is expressed in Coordinated Universal Time (UTC).

C# Signature:

[DllImport("kernel32.dll")]
static extern void GetSystemTime(out SYSTEMTIME lpSystemTime);

VB Signature:

<DllImport("kernel32.dll")> _
Shared Sub GetSystemTime(ByRef time As SYSTEMTIME)
End Sub

User-Defined Types:

None.

Notes:

See SYSTEMTIME.

Tips & Tricks:

Please add some!

Sample Code:

[C#]

// 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:

Do you know one? Please contribute it!

Documentation

Please edit this page!

Do you have...

  • helpful tips or sample code to share for using this API in managed code?
  • corrections to the existing content?
  • variations of the signature you want to share?
  • additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).

 
Access PInvoke.net directly from VS:
Terms of Use
Edit This Page
Find References
Show Printable Version
Revisions