Hi,
I have a Delphi dll defined like this:
TMPData = record
Lastname, Firstname: array[0..40] of char;
Birthday: TDateTime;
Pid: array[0..16] of char;
Title: array[0..20] of char;
Female: Boolean;
Street: array[0..40] of char;
ZipCode: array[0..10] of char;
City: array[0..40] of char;
Phone, Fax, Department, Company: array[0..20] of char;
Pn: array[0..40] of char;
In: array[0..16] of char;
Hi: array[0..8] of char;
Account: array[0..20] of char;
Valid, Status: array[0..10] of char;
Country, NameAffix: array[0..20] of char;
W, H: single;
Bp: array[0..10] of char;
SocialSecurityNumber: array[0..9] of char;
State: array[0..2] of char;
end;
function Init(const tmpData: TMPData; var ErrorCode: integer; ResetFatalError: boolean = false): boolean;
procedure GetData(out tmpData: TMPData);
My current c# signatures looks like this:
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
public struct TMPData
{
[MarshalAs(UnmanagedType.LPStr, SizeConst = 40)]
public string Lastname;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 40)]
public string Firstname;
[MarshalAs(UnmanagedType.R8)]
public double Birthday;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 16)]
public string Pid;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 20)]
public string Title;
[MarshalAs(UnmanagedType.Bool)]
public bool Female;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 40)]
public string Street;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 10)]
public string ZipCode;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 40)]
public string City;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 20)]
public string Phone;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 20)]
public string Fax;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 20)]
public string Department;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 20)]
public string Company;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 40)]
public string Pn;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 16)]
public string In;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 8)]
public string Hi;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 20)]
public string Account;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 10)]
public string Valid;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 10)]
public string Status;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 20)]
public string Country;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 20)]
public string NameAffix;
[MarshalAs(UnmanagedType.I4)]
public int W;
[MarshalAs(UnmanagedType.I4)]
public int H;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 10)]
public string Bp;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 9)]
public string SocialSecurityNumber;
[MarshalAs(UnmanagedType.LPStr, SizeConst = 2)]
public string State;
}
[DllImport("MyDll.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool Init(TMPData tmpData, int ErrorCode, bool ResetFatalError);
[DllImport("MyDll.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool GetData(out TMPData tmpData);
I first call Init setting the BirthDay, LastName and FirstName. I then call GetData but the TMPData structure I get back is incorrect. The FirstName, LastName and Birthday fields are populated but the data is incorrect. Is the mapping correct? ( "array[0..40] of char" equal to "[MarshalAs(UnmanagedType.LPStr, SizeConst = 40)]" )?
