C++ 生成器 TtcpClient

Question

void __fastcall TForm1::Button1Click(TObject *Sender)
{
    int size =  MemoEnter->GetTextLen() + 1;
    wchar_t *szBuff = new wchar_t[size];
    memset(szBuff, 0, sizeof(szBuff));
    MemoEnter->GetTextBuf((wchar_t *)szBuff, size);
    TcpClient->SendBuf(szBuff, sizeof(szBuff));
    LogOut->Lines->Add(szBuff);
    delete []szBuff;
}  

为什么 TcpClient 不发送任何东西？服务器没问题。连接正常。Telnet 向服务器发送数据，但这段代码没有。

伙计们!我试着

TcpClient->SendBuf("fsd", 3);

还是一无所获

Answer 1

这可能是造成问题的原因:

sizeof(szBuff); // Returns the sizeof a wchar_t*,
                // not the number of characters in szBuff

改变:

memset(szBuff, 0, sizeof(szBuff));
...
TcpClient->SendBuf(szBuff, sizeof(szBuff));

收件人:

memset(szBuff, 0, sizeof(wchar_t) * size);
...
TcpClient->SendBuf(szBuff, wcslen(szBuff));

如果TcpClient->SendBuf()的第二个参数是字节数，而不是字符数，则改为:

TcpClient->SendBuf(szBuff, wcslen(szBuff) * sizeof(wchar_t));