C# 调用Delphi 写得com 组件问题？
在delphi中写了这样一个函数，都不能调用成功，望指点。

function TestStr(s:WideString):WideString;stdcall;
begin
result:=s+' -delphi ';
end;

C#中报出的异常
Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

[解决办法]
function TestStr(s:pchar):pchar;stdcall;//试试这个

[解决办法]
WideString -> PChar