利用SHFILEOPSTRUCT复制文件出现的问题

Question

SHFILEOPSTRUCT op1;
 char buf_to[]="C:\\新建文件夹\\";
 op1.hwnd=NULL;  
 op1.wFunc=FO_COPY;   
  op1.fFlags=FOF_NOCONFIRMATION | FOF_RENAMEONCOLLISION;
char buf_form[]="C:\\文件夹1\\*";
  op1.pFrom=buf_form;  
 op1.pTo=buf_to; 
 ::SHFileOperation(&op1);
上面这段代码没有问题，执行成功，但是如果我改成
CString copyfrom="C:\\文件夹1\\*";
strcpy(buf_form,copyfrom);
则会出现错误，错误出现的原因应该是利用strcpy函数得到的buf_form是不对的，我要怎么做才能把CString类型的值赋给buf_form才能正确呢，我试过getbuffer也不对

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阿荣

Answer 1

参数类型不对。参数不应该是字符串，而应该是用两个\0终止的缓冲区。参考SHFILEOPSTRUCT结构的文档。

如果你用CString，你应该将其内容复制到自己的缓冲区。

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MSMVP VC++

Answer 2

Please not that the pFrom and pTo member of the SHFILEOPSTRUCT must be double-null terminated. That means you need to add an extra '\0' to the end of your string. Plase allocate one char more for your buf_from and buf_to.

Please refer following code:

    CString strFrom(_T("C:\\somedir\\*"));
    CString strTo(_T("C:\\otherdir"));

    SHFILEOPSTRUCT option = {0};
    option.hwnd = NULL;
    option.wFunc = FO_COPY;
    option.fFlags = FOF_NOCONFIRMATION | FOF_RENAMEONCOLLISION;

    int nBufSize = strFrom.GetLength() + 2;
    LPTSTR pBufFrom = new TCHAR[nBufSize];
    ::SecureZeroMemory(pBufFrom, nBufSize * sizeof(TCHAR));
    StringCchCopy(pBufFrom, nBufSize, strFrom);
    option.pFrom = pBufFrom;

    nBufSize = strTo.GetLength() + 2;
    LPTSTR pBufTo = new TCHAR[nBufSize];
    ::SecureZeroMemory(pBufTo, nBufSize * sizeof(TCHAR));
    StringCchCopy(pBufTo, nBufSize, strTo);
    option.pTo = pBufTo;

    ::SHFileOperation(&option);