work with I2C devices

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hi,

I have write the following codes to work with an I2C device but i have received this error message :
unable to load dll="coredll" the specified module could not be found.

C#

[DllImport("coredll.dll", EntryPoint = "DeviceIoControl",SetLastError = true)]
        internal static extern int DeviceIoControlCE(int hDevice, int dwIoControlCode, byte[] lpInBuffer, int nInBufferSize, 
            byte[] lpOutBuffer,int nOutBufferSize, ref int lpBytesReturned, IntPtr lpOverlapped);

[DllImport("coredll", SetLastError = true)]
        static extern IntPtr CreateFile(String lpFileName, UInt32 dwDesiredAccess, UInt32 dwShareMode, IntPtr lpSecurityAttributes, UInt32 dwCreationDisposition, UInt32 dwFlagsAndAttributes, IntPtr hTemplateFile);

[DllImport("coredll.dll", SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        static extern bool CloseHandle(IntPtr hObject);

Posted 21-Feb-12 23:35pm

M_Mogharrabi

Updated 24-Feb-12 22:33pm

v3

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Mike Hankey · Answer 1 · 2012-02-22T02:01:00

Solution 1

Might want to try again all that ended up showing is the imports...no error message.

Posted 22-Feb-12 2:01am

Mike Hankey

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M_Mogharrabi 25-Feb-12 4:38am

Hi Mike,
Excuse me for my imperfect question!!!I have correct it.
Please help me...

Mike Hankey · Answer 2 · 2012-02-25T02:42:00

Solution 2

This is an excellent site when working with imports [^].
This dll is for use with Smart devices not desktop and will produce the error above if you are using it for desktop app.

Posted 25-Feb-12 2:42am

Mike Hankey

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M_Mogharrabi 27-Feb-12 0:55am

So how should i use it with Smart devices??Because i have found this code to use in a Windows Application that works with Smart devices.