Managed C++/CLI

[DllImport(S"Kernel32.dll", EntryPoint="ReadFile", CharSet=CharSet::Auto)]<br />
	extern "C"  Boolean ReadFileNative(IntPtr hFile,StringBuilder *lpBuffer,<br />
	UInt32 nNumberOfBytesToRead,<br />
	UInt32 *lpNumberOfBytesRead, <br />
	Int32);

String *GetFileTextWithImport(String *fileName){<br />
		FileStream *fs=new FileStream(fileName,FileMode::Open);<br />
	//Wrapping a handle with HandleRef guarantees that<br />
		//the managed object is not garbage collected <br />
		//until the platform invoke call completes.<br />
		HandleRef hRef=HandleRef(fs,fs->Handle);<br />
		StringBuilder *sbText=new StringBuilder(fs->Length);<br />
		UInt32 uiToRead=0;<br />
		ReadFileNative(hRef.Handle,sbText,fs->Length,&uiToRead,0);<br />
		fs->Dispose();<br />
		return sbText->ToString();<br />
	}

String *GetFileText(String *fileName){<br />
		FileStream *fs=new FileStream(fileName,FileMode::Open);<br />
		HandleRef hRef=HandleRef(fs,fs->Handle);<br />
		IntPtr ptrText=Marshal::AllocHGlobal(fs->Length);<br />
		DWORD uiToRead=fs->Length, uiRead=0;<br />
		ReadFile((HANDLE)hRef.Handle,ptrText.ToPointer(),uiToRead,&uiRead,NULL);<br />
		String *strRet=Marshal::PtrToStringAnsi(ptrText);<br />
		Marshal::FreeHGlobal(ptrText);<br />
		fs->Dispose();<br />
		return strRet;