DLL Import use SYSTEMTIME

Question

I have a dll developed using C++. Now I wish to use these functions in my C# application. I know how to use the dll in my application, but my problem is that the dll expects a parameter which is of type SYSTEMTIME.

[DllImport("MyControl.dll")]
 public static extern Int32 MyCONTROL_NewControl(SYSTEMTIME stime);

But I am not able to use the SYSTEMTIME in my C# code. Please suggest a workaround on how to use SYSTEMTIME .

Answer 1

That should work:

[StructLayout(LayoutKind.Sequential)]
private struct SYSTEMTIME {
    Int16 wYear;
    Int16 wMonth;
    Int16 wDayOfWeek;
    Int16 wDay;
    Int16 wHour;
    Int16 wMinute;
    Int16 wSecond;
    Int16 wMilliseconds;
}

See also the ready to use solution from pinvoke like Christian.K pointed to.

Answer 2

That's how you use it in c#:

    [StructLayout(LayoutKind.Sequential)]
    public struct SYSTEMTIME
    {
        ushort wYear;//ushort = WORD
        ushort wMonth;
        ushort wDayOfWeek;
        ushort wDay;
        ushort wHour;
        ushort wMinute;
        ushort wSecond;
        ushort wMilliseconds;
    }