Help needed with this code

[flavourofbru]

Hi all,

I am presently working with folder and would like to find out the number of files in that particular directory.
But I am getting the following error:

error C2664: 'FindFirstFileW ' : cannot convert parameter 1 from 'const char *' to 'LPCWSTR'

the code is as follows:

#include "stdafx.h"
#define _WIN32_WINNT 0x0400
#include <windows.h>
#include <stdio.h>
#include <string>
using namespace std;
 
int main(int argc, char *argv[])
{
WIN32_FIND_DATA FindFileData;
HANDLE hFind;
 
string str1 = "abc.txt";
 
printf ("Target file is %s.\n", str1.c_str());
hFind = FindFirstFile(str1.c_str(), &FindFileData);
if (hFind == INVALID_HANDLE_VALUE)
{
printf ("Invalid File Handle. GetLastError reports %d\n", GetLastError());
return (0);
}
else
{
printf ("The first file found is %s\n", FindFileData.cFileName);
FindClose(hFind);
return (1);
}
}

any help is appreciated!

Thanks!!

[Darryl]

It's because you are compiling in Unicode but passing an ANSI string to your function. Use a wstring instead. and wrap your literals in TEXT("your string")

Other suggestions if you really want to make it Unicode neutral is:

1. use TCHAR.H

2. create a neutral string type like this: typedef tstring basic_string<TC HAR>;

3. use int _tmain(INT argc, _TCHAR **argv instead of int main...

[sicarie]

And please have a look at the Posting Guidelines in the meantime. Thanks!