#include "stdafx.h"
#include "wininet.h"
wchar_t *lpszAgent;
wchar_t *server = L"aaaa.t35.com";
wchar_t *username = L"aaaaaaaa.t35.com";
wchar_t *password = L"gaaaaa";
wchar_t upFileName[] = L"test.txt";
wchar_t dir[] = L"test";
HINTERNET hInternet;
HINTERNET ftp;
void upload(void);
int APIENTRY _tWinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
upload();
return 1;
}
void upload()
{
hInternet = InternetOpen( NULL, 1, NULL , NULL,1);
ftp = InternetConnect(hInternet, server,21, username, password, 1,1,1);
FtpCreateDirectory( ftp, dir );
FtpSetCurrentDirectory(ftp, dir);
FtpPutFile( ftp, upFileName,upFileName,2, NULL);
InternetCloseHandle(ftp);
InternetCloseHandle( hInternet);
}but i get these error no matter i tried in many computer (which installs both Visual studio 98 and Visual studio 2005), i dont' know why can't any one help me
Error 7 error LNK2019: unresolved external symbol __imp__InternetCloseHandle@4 referenced in function "void __cdecl upload(void)" ( upload@@YAXXZ) et.obj
Error 8 error LNK2019: unresolved external symbol __imp__FtpPutFileW@20 referenced in function "void __cdecl upload(void)" ( upload@@YAXXZ) et.obj
Error 9 error LNK2019: unresolved external symbol __imp__FtpSetCurrentDirectoryW@8 referenced in function "void __cdecl upload(void)" ( upload@@YAXXZ) et.obj
Error 10 error LNK2019: unresolved external symbol __imp__FtpCreateDirectoryW@8 referenced in function "void __cdecl upload(void)" ( upload@@YAXXZ) et.obj
Error 11 error LNK2019: unresolved external symbol __imp__InternetConnectW@32 referenced in function "void __cdecl upload(void)" ( upload@@YAXXZ) et.obj
Error 12 error LNK2019: unresolved external symbol __imp__InternetOpenW@20 referenced in function "void __cdecl upload(void)" ( upload@@YAXXZ) et.obj
Error 13 fatal error LNK1120: 6 unresolved externals D:\My Documents\Visual Studio 2005\Projects\et\Debug\et.exe 1
why? link error...
Al1234511234
you receive that error because when the compiler is linking (generating the executable file), all the intermediate files (objects), it will need the "code" for that function(s). Normally when you use external functions/objects to your project, you'll need to link with a library, a .lib file. In this case you need to link (at least) with wininet.lib to resolve those errors.
When you don't know which library you have to link, search MSDN (if you're using a windows library). Check this page: http://msdn.microsoft.com/library/default.asp url=/library/en-us/wininet/wininet/internetopen.asp
At the end you'll find:
Requirements:
...Use Wininet.lib.
Jabbabroadley
The libraries and headers you need usually are described in the documentation.
Hope it helps.