Here's the MSDN page for SHFileOperation. At the bottom of the page are all the error-codes (return values). So what value does it return in your case?
Print out the value of 'n' in the else statement to find out and thus find out what went wrong.

Yes, as your advice, i add the output of "n",
the result is "1026".(it should be 0x402)

By the MSDN:
0x402 An unknown error occurred. This is typically due to an invalid path in the source or destination. This error does not occur on Windows Vista and later.

So i guess the fail may from the "invalid path". is it right?
(But in my PC, the path is true, with out any problem.)

sorry, "failed" was printed.
and here is my code, i can not understand why...

C++ Syntax (Toggle Plain Text)

#include "stdafx.h"
#include <windows.h>
#include <iostream>
#include <CString>
using namespace std;
 
int main()
{
    SHFILEOPSTRUCT sf;
    memset(&sf,0,sizeof(sf));
	sf.hwnd = 0;
    sf.wFunc = FO_COPY;
 
	string from = "D:\\testfrom\\*.*";
	string to = "D:\\testto";
 
	sf.pFrom = from.c_str();
	sf.pTo = to.c_str();
    sf.fFlags = FOF_NOCONFIRMATION | FOF_NOCONFIRMMKDIR | FOF_NOERRORUI;
 
    int n = SHFileOperation(&sf);
    if( n == 0)
    {
        cout << "Success\n";
    }
    else
    {
        cout << "Failed\n";
    }
}

#include "stdafx.h" #include <windows.h> #include <iostream> #include <CString> using namespace std; int main() { SHFILEOPSTRUCT sf; memset(&sf,0,sizeof(sf)); sf.hwnd = 0; sf.wFunc = FO_COPY; string from = "D:\\testfrom\\*.*"; string to = "D:\\testto"; sf.pFrom = from.c_str(); sf.pTo = to.c_str(); sf.fFlags = FOF_NOCONFIRMATION | FOF_NOCONFIRMMKDIR | FOF_NOERRORUI; int n = SHFileOperation(&sf); if( n == 0) { cout << "Success\n"; } else { cout << "Failed\n"; } }