@msdn=http://search.microsoft.com/search/results.aspx?qu=$$$ @pinvoke=http://pinvoke.net/$$$.htm Summary: TODO - a short description !!!!C# Signature: [DllImport("WINSCARD.DLL")] internal static extern uint SCardGetStatusChange(IntPtr hContext, UInt32 dwTimeout, [In, Out] SCARD_READERSTATE[] rgReaderStates, UInt32 cReaders); !!!!VB Signature: Declare Function WinSCard Lib "winscard.dll" (TODO) As TODO !!!!User-Defined Types: [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)] internal struct SCARD_READERSTATE { /// <summary> /// Reader /// </summary> internal string szReader; /// <summary> /// User Data /// </summary> internal IntPtr pvUserData; /// <summary> /// Current State /// </summary> internal UInt32 dwCurrentState; /// <summary> /// Event State/ New State /// </summary> internal UInt32 dwEventState; /// <summary> /// ATR Length /// </summary> internal UInt32 cbAtr; /// <summary> /// Card ATR /// </summary> [MarshalAs(UnmanagedType.ByValArray, SizeConst = 32)] internal byte[] rgbAtr; } And internal enum SCardState { /// <summary> /// Unware /// </summary> UNAWARE = 0x00000000, /// <summary> /// State Ignored /// </summary> IGNORE = 0x00000001, /// <summary> /// State changed /// </summary> CHANGED = 0x00000002, /// <summary> /// State Unknown /// </summary> UNKNOWN = 0x00000004, /// <summary> /// State Unavilable /// </summary> UNAVAILABLE = 0x00000008, /// <summary> /// State empty /// </summary> EMPTY = 0x00000010, /// <summary> /// Card Present /// </summary> PRESENT = 0x00000020, /// <summary> /// ATR mathched /// </summary> ATRMATCH = 0x00000040, /// <summary> /// In exclusive use /// </summary> EXCLUSIVE = 0x00000080, /// <summary> /// In use /// </summary> INUSE = 0x00000100, /// <summary> /// Mute State /// </summary> MUTE = 0x00000200, /// <summary> /// Card unpowered /// </summary> UNPOWERED = 0x00000400 } !!!!Notes: None. !!!!Tips & Tricks: Please add some! !!!!Sample Code: UInt32 nbReaders = 1; SCARD_READERSTATE[] readerState = new SCARD_READERSTATE[nbReaders]; readerState[0].szReader = "Reader X"; readerState[0].dwCurrentState = (UInt32)SCardState.UNAWARE; errorCode = SCardGetStatusChange(hContext, 0, readerState, nbReaders); !!!!Alternative Managed API: Do you know one? Please contribute it! Documentation: WinSCard@msdn on MSDN
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