c - 我无法使用 SHFileOperation 删除文件

Question

我想删除一个文件到回收站。我使用这段代码。

    SHFILEOPSTRUCT FileOp;
    FileOp.hwnd = NULL;
    FileOp.wFunc=FO_DELETE; 
    FileOp.pFrom= lpFileName; //it's my value  \\?\C:\WorkFolder\qweqw.docx
    FileOp.pTo = NULL;
    FileOp.fFlags=FOF_ALLOWUNDO|FOF_NOCONFIRMATION;
    FileOp.hNameMappings=NULL;      
    int t_res = SHFileOperation(&FileOp); // t_res = 124
    return t_res;

我做错了什么？提前致谢。

Answer 1

1. 什么是t_res，应该给出错误代码并提示原因
2. 注意 pFrom 接受文件，而不是单个文件，所以你应该用两个零终止缓冲区，参见 doc excerpt from MSDN :

Although this member is declared as a single null-terminated string, it is actually a buffer that can hold multiple null-delimited file names. Each file name is terminated by a single NULL character. The last file name is terminated with a double NULL character ("\0\0") to indicate the end of the buffer.