Why is URLDownloadToFile() not downloading my file? - c++

Question

So I am trying to create a function to download a file with a variable address depending on the user with a string input using URLDownloadToFile() however it does not seem to actually download the file to the disk. It skips S_OK, E_OUTOFMEMORY and INET_E_DOWNLOAD_FAILURE to UNKNOWN_ERROR. Using GetLastError() returns 2, checking up online said that meant "Not Found". I'm not sure whether this was the website I was using or not (it's my own server with Node.JS using res.download(path, filename)). Hope for help, the code is below.
Just a note, everything is properly included as needed and the process (safely) runs with SE_DEBUG_NAME so it hopefully should not be a permission error.
// Convert String To Wide String
wstring S2WS(const string& str) {
int length;
int slength = (int)str.length() + 1;
length = MultiByteToWideChar(CP_ACP, 0, str.c_str(), slength, 0, 0);
wchar_t* buffer = new wchar_t[length];
MultiByteToWideChar(CP_ACP, 0, str.c_str(), slength, buffer, length);
wstring out(buffer);
delete[] buffer;
return out;
}
// Download File
int download(string url) {
wstring wUrl = S2WS(url);
LPCWSTR lUrl = wUrl.c_str();
TCHAR path[MAX_PATH];
GetCurrentDirectory(MAX_PATH, path);
HRESULT response = URLDownloadToFile(NULL, lUrl, path, 0, NULL);
if (response == S_OK) {
cout << "S_OK" << endl;
} else if (response == E_OUTOFMEMORY) {
cout << "E_OUTOFMEMORY" << endl;
} else if (response == INET_E_DOWNLOAD_FAILURE) {
cout << "INET_E_DOWNLOAD_FAILURE" << endl;
} else {
cout << "UNKNOWN_ERROR" << endl;
}
return 0;
}
// Example Usage
int main() {
download("http://somewebsite.com/files/textfile.txt");
}

Answer 1

From URLDownloadToFile, the path should be file path not a directory path. You could append some file name to the path variable and it should work.
TCHAR path[MAX_PATH];
GetCurrentDirectory(MAX_PATH, path);
wcscat_s(path, L"\\filename.txt");