RAPI - CeOpenDatabase,CeReadRecordProps,CeCreateDatabase - DllImport with C#

public const short FILE_ATTRIBUTE_NORMAL = 0x80;public const short INVALID_HANDLE_VALUE = -1;public const uint GENERIC_READ = 0x80000000;public const uint GENERIC_WRITE = 0x40000000;public const short CREATE_NEW = 1;public const short CREATE_ALWAYS = 2;public const short OPEN_EXISTING = 3;public const short ERROR_FILE_EXISTS = 80;public const short ERROR_INVALID_PARAMETER = 87;public const short ERROR_DISK_FULL = 112;[StructLayout(LayoutKind.Sequential)]public struct OSVERSIONINFO{public int dwOSVersionInfoSize;public int dwMajorVersion;public int dwMinorVersion;public int dwBuildNumber;public int dwPlatformId;[MarshalAs(UnmanagedType.ByValTStr,SizeConst= 128)]public string szCSDVersion;}[StructLayout(LayoutKind.Sequential)]public struct RAPIINIT{int cbSize;int heRapiInit;int hrRapiInit;}[StructLayout(LayoutKind.Sequential)]public struct SECURITY_ATTRIBUTES{public int nLength;public int lpSecurityDescriptor;public int bInheritHandle;}[DllImport("rapi.dll", CharSet=CharSet.Unicode)]public static extern int CeCloseHandle(int hObject);[DllImport("rapi.dll", CharSet=CharSet.Unicode)]public static extern int CeCreateFile(string lpFileName,uint dwDesiredAccess,int dwShareMode,int lpSecurityAttributes,intdwCreationDisposition,int dwFlagsAndAttributes,int hTemplateFile);[DllImport("rapi.dll", CharSet=CharSet.Unicode)]public static extern int CeRapiInitEx ([MarshalAs(UnmanagedType.Struct)] ref RAPIINIT pRapiInit);[DllImport("rapi.dll", CharSet=CharSet.Unicode)]public static extern int CeRapiInit ();[DllImport("rapi.dll", CharSet=CharSet.Unicode)]public static extern int CeRapiUninit ();[DllImport("rapi.dll", CharSet=CharSet.Unicode)]public static extern int CeReadFile(int hFile,StringBuilder lpBuffer,int nNumberOfbytesToRead, out int lpNumberOfbytesRead, int lpOverlapped);[DllImport("rapi.dll", CharSet=CharSet.Unicode)]public static extern int CeWriteFile(int hFile,StringBuilder lpBuffer, int nNumberOfbytesToWrite, out int lpNumberOfbytesWritten, int lpOverlapped);[DllImport("rapi.dll", CharSet=CharSet.Unicode)]public static extern int GetLastError();[DllImport("rapi.dll", CharSet=CharSet.Unicode)]public static extern int CeSetEndOfFile(int hFile);[DllImport("rapi.dll", CharSet=CharSet.Unicode)]public static extern int CeGetFileSize(int hFile,int lpFileSizeHigh);[DllImport("rapi.dll", CharSet=CharSet.Unicode)]public static extern int CeGetLastError();

heres a good one

http://www.codeguru.com/Cpp/W-P/ce/database/article.php/c6765/

all DllImport are ok, but there is no fuction that know to open a database !
I need the flowing funcitons:
CeOpenDatabase,CeReadRecordProps,CeCreateDatabase.
 I need to call them by C#,
I know that I can do it with C++
Thank You