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If the function succeeds, the return value is the number of bytes returned. If the function fails, the return value is GDI_ERROR.

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    /// If an error occurs and the selected object is not a region, the return value is NULL. Otherwise, it is HGDI_ERROR.</returns>

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    /// <returns>If the function succeeds, the return value is the number of bytes returned. If the function fails, the return value is GDI_ERROR.</returns>

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///   <para>If an error occurs and the selected object is not a region, the return value is <c>NULL</c>. Otherwise, it is <c>HGDI_ERROR</c>.</para>

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DI_FUNCTION

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  If (devParams.Flags And Win32.DI_NEEDRESTART) = Win32.DI_NEEDRESTART OrElse (devParams.Flags And Win32.DI_NEEDREBOOT) = Win32.DI_NEEDREBOOT Then

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public const int DI_MASK = 0x0001;

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public const int DI_IMAGE = 0x0002;

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/// Combination of DI_IMAGE and DI_MASK.

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public const int DI_NORMAL = 0x0003;

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public const int DI_COMPAT = 0x0004;

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public const int DI_DEFAULTSIZE = 0x0008;

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public const int DI_NOMIRROR = 0x0010;

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        public const int SPAPI_E_DI_DO_DEFAULT = (int)(0x800F020E - 0x100000000);

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        public const int SPAPI_E_DI_NOFILECOPY = (int)(0x800F020F - 0x100000000);

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        public const int SPAPI_E_DI_BAD_PATH = (int)(0x800F0214 - 0x100000000);

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        public const int SPAPI_E_DI_POSTPROCESSING_REQUIRED = (int)(0x800F0226 - 0x100000000);

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        public const int SPAPI_E_DI_DONT_INSTALL = (int)(0x800F022B - 0x100000000);

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DI_

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DI_

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    User32.GetRawInputDeviceInfo(device.hDevice, User32.RIDI_DEVICEINFO, ref di, ref size);

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//Call this passing RIDI_DEVICEINFO

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//Call this passing RIDI_DEVICENAME

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        RIDI_PREPARSEDDATA = 0x20000005,

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        RIDI_DEVICENAME = 0x20000007,

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        RIDI_DEVICEINFO = 0x2000000B

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     RIDI_PREPARSEDDATA = &H20000005

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     RIDI_DEVICENAME = &H20000007

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     RIDI_DEVICEINFO = &H2000000B

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        var firstCall = GetRawInputDeviceInfo(deviceHandle, RIDI_DEVICENAME, devBufer, ref returnedDataSize);

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        var secondCall = GetRawInputDeviceInfo(deviceHandle, RIDI_DEVICEINFO, ref devInfo, ref returnedDataSize);

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         GetRawInputDeviceInfo(itm.Key, DeviceInfoTypes.RIDI_DEVICENAME, IntPtr.Zero, pcbSize)

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         GetRawInputDeviceInfo(itm.Key, DeviceInfoTypes.RIDI_DEVICENAME, pData, pcbSize)

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        ///        Skip it to use the default <c>#32512</c> (value of <c>IDI_APPLICATION</c>) to use

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    IDI_APPLICATION = 32512,

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    IDI_HAND = 32513,

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    IDI_QUESTION = 32514,

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    IDI_EXCLAMATION = 32515,

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    IDI_ASTERISK = 32516,

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    IDI_WINLOGO = 32517,

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    IDI_WARNING = IDI_EXCLAMATION,

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    IDI_ERROR = IDI_HAND,

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    IDI_INFORMATION = IDI_ASTERISK,

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    IDI_APPLICATION = 32512

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    IDI_HAND = 32513

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    IDI_QUESTION = 32514

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    IDI_EXCLAMATION = 32515

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    IDI_ASTERISK = 32516

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    IDI_WINLOGO = 32517

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    IDI_WARNING = IDI_EXCLAMATION

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    IDI_ERROR = IDI_HAND

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    IDI_INFORMATION = IDI_ASTERISK

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            TileWindows(IntPtr.Zero, MDI_TILE.SKIPDISABLED, _

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    FILE_DEVICE_MIDI_IN = 0x0d,

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    FILE_DEVICE_MIDI_OUT = 0x0e,

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    FILE_DEVICE_MIDI_IN = &Hd

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    FILE_DEVICE_MIDI_OUT = &He

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    public const int SPAPI_E_DI_DO_DEFAULT = unchecked((int)0x800F020E);

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    public const int SPAPI_E_DI_NOFILECOPY = unchecked((int)0x800F020F);

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    public const int SPAPI_E_DI_BAD_PATH = unchecked((int)0x800F0214);

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    public const int SPAPI_E_DI_POSTPROCESSING_REQUIRED = unchecked((int)0x800F0226);

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    public const int SPAPI_E_DI_DONT_INSTALL = unchecked((int)0x800F022B);

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    Public Const SPAPI_E_DI_DO_DEFAULT As Integer = CInt(&H800f020eUI)

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    Public Const SPAPI_E_DI_NOFILECOPY As Integer = CInt(&H800f020fUI)

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    Public Const SPAPI_E_DI_BAD_PATH As Integer = CInt(&H800f0214UI)

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    Public Const SPAPI_E_DI_POSTPROCESSING_REQUIRED As Integer = CInt(&H800f0226UI)

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    Public Const SPAPI_E_DI_DONT_INSTALL As Integer = CInt(&H800f022bUI)