| Delphi DataType | C# datatype |
| ansistring | string |
| boolean | bool |
| byte | byte |
| char | char |
| comp | double |
| currency | decimal |
| double | double |
| extended | double |
| int64 | long |
| int32 | int |
| int16 | short |
| integer | int |
| longint | int |
| longword | uint |
| olevariant | object |
| pchar | string |
| real | double |
| real48 | double |
| shortint | sbyte |
| single | float |
| smallint | short |
| string | string |
| variant | object |
| widechar | char |
| wchar | char |
| uchar | char |
| widestring | string |
| word | ushort |
| textfile | System.IO.FileInfo |
| tdate | System.DateTime |
| tdatetime | System.DateTime |
| tfiletime | System.DateTime |
| hresult | long |
| pointer | object |
| ansichar | char |
| file | System.IO.File |
| plongint | int |
| pinteger | int |
| pcardinal | uint |
| pword | double |
| pdword | double |
| psmallint | short |
| pbyte | byte |
| pshortint | short |
| pint64 | long |
| plongword | uint |
| psingle | float |
| pdouble | double |
| pdate | System.DateTime |
| pdispatch | object |
| ppdispatch | object |
| perror | object |
| pwordbool | bool |
| punknown | object |
| ppunknown | object |
| ppwidechar | string |
| ppchar | string |
| ppansichar | string |
| pansichar | string |
| pextended | double |
| pcomp | double |
| pcurrency | double |
| pvariant | object |
| polevariant | object |
| ppointer | object |
| pboolean | bool |
| pdatetime | System.DateTime |
| thandle | long |
| tresult | long |
| cardinal | uint |
| tbytearray | byte[] |
| twordarray | int[] |
| dword | int |
| pstring | string |
| pwidestring | string |
| tsystemtime | System.DateTime |
| bytebool | bool |
| longbool | bool |
| wordbool | bool |
| hmodule | long |
| tlargeinteger | int |
| plargeinteger | int |
| pwidechar | string |
| toleenum | long |
| pbytearray | byte[] |
| pwordarray | int[] |
| pansistring | string |
| ptextbuf | string |
| shortstring | string |
| utf8string | string |
| text | System.IO.Stream |
| textfile | System.IO.Stream |
| textinput | System.IO.TextReader |
| textoutput | System.IO.TextWriter |
| ttypeinfo | System.Type |
| tbytes | sbyte[] |