static extern int Escape(IntPtr hdc, int nEscape, int cbInput,

static extern int ExtEscape(IntPtr hdc, int nEscape, int cbInput,

    Public Shared Function ExtEscape(ByVal hdc As IntPtr, ByVal nEscape As Integer, ByVal cbInput As Integer, ByVal lpszInData As String, ByVal cbOutput As Integer, ByRef lpszOutData As IntPtr) As Integer

    //Here only to catch errors where input is not a number (EXIT, for example, is a string)        

        /// <summary> 2357 - Could not determine the type of input. </summary>

        /// <summary> 2662 - There is no DFS name whose entry path matches the input Entry Path. </summary>

    public static PropertyKey WPD_PROPERTY_MTP_EXT_OPERATION_CODE = new PropertyKey(0x4d545058, 0x1a2e, 0x4106, 0xa3, 0x57, 0x77, 0x1e, 0x8, 0x19, 0xfc, 0x56, 1001);    // [ VT_UI4 ] : Input param which identifies the vendor-extended MTP operation code

    public static PropertyKey WPD_PROPERTY_MTP_EXT_OPERATION_PARAMS = new PropertyKey(0x4d545058, 0x1a2e, 0x4106, 0xa3, 0x57, 0x77, 0x1e, 0x8, 0x19, 0xfc, 0x56, 1002);    // [ VT_UNKNOWN ] : Input IPortableDevicePropVariantCollection (of VT_UI4) specifying the params for the vendor operation

    public static PropertyKey WPD_PROPERTY_MTP_EXT_TRANSFER_TOTAL_DATA_SIZE = new PropertyKey(0x4d545058, 0x1a2e, 0x4106, 0xa3, 0x57, 0x77, 0x1e, 0x8, 0x19, 0xfc, 0x56, 1007);    // [ VT_UI8 ] : Input (when writing data) or output (when reading data) param which specifies total data size in bytes (excluding any overhead)

    public static PropertyKey WPD_PROPERTY_MTP_EXT_TRANSFER_NUM_BYTES_TO_READ = new PropertyKey(0x4d545058, 0x1a2e, 0x4106, 0xa3, 0x57, 0x77, 0x1e, 0x8, 0x19, 0xfc, 0x56, 1008); // [ VT_UI4 ] : Input param specifying the number of bytes to read from device in a series of read calls

    public static PropertyKey WPD_PROPERTY_MTP_EXT_TRANSFER_NUM_BYTES_TO_WRITE = new PropertyKey(0x4d545058, 0x1a2e, 0x4106, 0xa3, 0x57, 0x77, 0x1e, 0x8, 0x19, 0xfc, 0x56, 1010); // [ VT_UI4 ] : Input specifying the number of bytes to send to device in a series of write calls

    public const int SEE_MASK_WAITFORINPUTIDLE  = 0x02000000;

    public const int SEE_MASK_WAITFORINPUTIDLE  = 0x02000000;

        /// Name translation: Input name mapped to more than one output name.

        /// Name translation: Input name found, but not the associated output format.

        /// User input required for operation to succeed

        /// Common prefix is input moniker

        /// An outgoing call cannot be made since the application is dispatching an input-synchronous call.

        public const int RPC_E_CANTCALLOUT_ININPUTSYNCCALL = (int)(0x8001010D - 0x100000000);

        public const int OSS_MORE_INPUT = (int)(0x80093004 - 0x100000000);

private const UInt32 WM_INPUTLANGCHANGE    = 0x0051;

private const UInt32 WM_INPUTLANGCHANGEREQUEST = 0x0050;

   WM_INPUTLANGCHANGE = &H51

   WM_INPUTLANGCHANGEREQUEST = &H50

WM_INPUTLANGCHANGEREQUEST equ 050h

WM_INPUTLANGCHANGE    equ 051h

->If there are any bytes in the input buffer, ReadFile returns immediately with the bytes in the buffer.

->If there are no bytes in the input buffer, ReadFile waits until a byte arrives and then returns immediately.

    internal sbyte EofChar;          // end of input character

    struct DELTA_INPUT

Structure DELTA_INPUT

    Private Shared Function ConvertFileTimeToDateTime(input As FILETIME) As DateTime

    Dim longTime As ULong = (CType(input.dwHighDateTime, ULong) << 32) Or input.dwLowDateTime

    internal struct HARDWAREINPUT

Structure HARDWAREINPUT

   internal enum INPUT_TYPE : uint {

      INPUT_MOUSE = 0,

      INPUT_KEYBOARD = 1,

      INPUT_HARDWARE = 2

Structure INPUT_TYPE

    public struct INPUT_RECORD

  Public Structure INPUT_RECORD

  Public Enum InputEventTypes

   internal enum INPUT_TYPE : uint {

      INPUT_MOUSE = 0,

      INPUT_KEYBOARD = 1,

      INPUT_HARDWARE = 2

Structure INPUT_TYPE

    internal struct KEYBDINPUT

Structure KEYBDINPUT

        ///Input Method Editor (IME) Kana mode

        ///The VK_PACKET key is the low word of a 32-bit Virtual Key value used for non-keyboard input methods. For more information,

        ///see Remark in KEYBDINPUT, SendInput, WM_KEYDOWN, and WM_KEYUP

    struct LASTINPUTINFO

        public static readonly int SizeOf = Marshal.SizeOf(typeof(LASTINPUTINFO));

    Structure LASTINPUTINFO

   type LastInputInfo = {

    internal struct MOUSEINPUT

Structure MOUSEINPUT

    ''' You can specify an index on input to indicate the initial filter description and filter

    ''' When the dialog box returns, it sets these flags to indicate the user's input.

Structure RAWINPUTMOUSE

/// <summary>Value type for raw input devices.</summary>

public struct RAWINPUTDEVICE

    /// <summary>Top level collection Usage page for the raw input device.</summary>

    /// <summary>Top level collection Usage for the raw input device. </summary>

    public RawInputDeviceFlags Flags;

''' <summary>Value type for raw input devices.</summary>

Public Structure RAWINPUTDEVICE

    ''' <summary>Top level collection Usage page for the raw input device.</summary>

    ''' <summary>Top level collection Usage for the raw input device. </summary>

    Public Flags As RawInputDeviceFlags

HIDUsagePage, HIDUsage, RawInputDeviceFlags

    /// Value type for a raw input header.

    public struct RAWINPUTHEADER

        /// <summary>Type of device the input is coming from.</summary>

        public RawInputType Type;

    ''' Value type for a raw input header.

    Public Structure RawInputHeader

        ''' <summary>Type of device the input is coming from.</summary>

        Public Type As RawInputType

    /// Value type for raw input from a HID.

    public struct RAWINPUTHID

Structure RAWINPUTHID

    /// Value type for raw input from a keyboard.

    ''' Value type for raw input from a keyboard.

Structure RAWINPUTMOUSE

  public uint dwBytesRecorded; // used for input only

Have a look at SendInput for an example of where these constants are used.

   // For use with the INPUT struct, see SendInput for an example

   public const int INPUT_MOUSE     = 0;

   public const int INPUT_KEYBOARD  = 1;

   public const int INPUT_HARDWARE  = 2;

    ' For use with the INPUT struct, see SendInput for an example

    INPUT_MOUSE = 0

    INPUT_KEYBOARD = 1

    INPUT_HARDWARE = 2

Buffer size events are placed in the input buffer when the console is in window-aware mode (ENABLE_WINDOW_INPUT).

        System.Runtime.InteropServices.ComTypes.FILETIME LastInputTime;

The rationale behind the change in the history for this is because is that he/she wanted to "unmarshal". However, in functions like WlanConnect(), it is used as an "input". So, it needs to be marshaled. Then I believe they should be IntPtr.

System.Console.KeyAvailable() - Gets a value indicating whether a key press is available in the input stream. (Nonblocking)

static extern int DocumentProperties(IntPtr hwnd, IntPtr hPrinter, [MarshalAs(UnmanagedType.LPWStr)] string pDeviceName, IntPtr pDevModeOutput, IntPtr pDevModeInput, int fMode);

static extern int DocumentProperties(IntPtr hWnd, IntPtr hPrinter, string pDeviceName, IntPtr pDevModeOutput, IntPtr pDevModeInput, fModes fMode);

    Private Shared Function DocumentProperties(ByVal hwnd As IntPtr, ByVal hPrinter As IntPtr, <MarshalAs(UnmanagedType.LPWStr)> ByVal pDeviceName As String, ByVal pDevModeOutput As IntPtr, ByVal pDevModeInput As IntPtr, ByVal fMode As Integer) As Integer

Doesn't work on a x64 system. (i.e. this declaration is wrong for x64, I'm just not quite sure why.). MH:I tested the code extensivly and I think the param "IntPtr pDevModeInput" must not have the "ref" flag. If it has the initial state of the dialog is wrong. EP: Yup, you're right! Thanks!!! I've been trying to figure out why it doesn't work on some drivers for a few weeks now! "ref" removed.

static extern bool XcvData(IntPtr hXcv, [MarshalAs(UnmanagedType.LPWStr)] string pszDataName, IntPtr InputData, uint cbInputData,

                [MarshalAs(UnmanagedType.LPArray)] byte[] pbInput,

                int cbInput,

            [MarshalAs(UnmanagedType.LPArray)] byte[] pbInput,

            int cbInput,

    IntPtr pbInputByteArray,

    int cbInput,

  When the input is a 4 byte DWORD; you may also use this:

                            ref int pbInput,

                            int cbInput,

    ProcessImageFileMapping, // q: HANDLE (input)

                      DELTA_INPUT GlobalOptions,

                      DELTA_INPUT GlobalOptions,

DELTA_INPUT

    /// Use to determine the amount of data pending in the network's input buffer that can be read from socket s.

        /// Use to determine the amount of data pending in the network's input buffer that can be read from socket s.

        /// but is not removed from the input queue.

UInt32 Connect(IntPtr midiInputHandle, IntPtr midiOutputHandle)

     return midiConnect(midiInputHandle, midiOutputHandle, IntPtr.Zero);

UInt32 Disconnect(IntPtr midiInputHandle, IntPtr midiOutputHandle)

     return midiDisconnect(midiInputHandle, midiOutputHandle, IntPtr.Zero);