Ich habe folgendes Problem:

Ich brauche den Pfad für den Desktop auf Windows.

Mein Code:

void make_list(map<string, int> content)
{
	ofstream datei;

	typedef map<string, int>::iterator iterTyp;

	datei.open("???");

	datei << "Name:";

	for(iterTyp it = content.begin(); it != content.end(); ++it)
	{
		datei << "\n" << it->first;
		if(it->second != 1)
			datei << " x " << (it->second);
	}
}

Da wo ??? steht, muss der Pfad hin. Geht es mit "...\...\\desktop"?

Und

datei.open("...\\...\\desktop\\The List.txt", ios_base::out);

funktioniert nicht!

Was hast du denn für einen Code mit SHGetFolderPath() und welche Fehler?

Edit: Und wenn du dann wirklich einen std::string brauchst dann hilft dir sicher diese Funktion:

// Convert a wide Unicode string to an UTF8 string 
std::string utf8_encode(const std::wstring &wstr) 
{ 
    int size_needed = WideCharToMultiByte(CP_UTF8, 0, &wstr[0], (int)wstr.size(), NULL, 0, NULL, NULL); 
    std::string strTo( size_needed, 0 ); 
    WideCharToMultiByte                  (CP_UTF8, 0, &wstr[0], (int)wstr.size(), &strTo[0], size_needed, NULL, NULL); 
    return strTo; 
}

Ergebnis:

Welcome!

This is your personal 'List Editor'.
You can type in several things. This program will sort them and also count them!

Press any key to start!00012FD58

Das kommt raus, wenn ich das so mache:

TCHAR pzPath[MAX_PATH];

	cout << "Welcome!\n\n\n" <<
		"This is your personal 'List Editor'.\n" <<
		"You can type in several things. This program will sort them and also count them!\n\n\n" <<
		"Press any key to start!" << SHGetFolderPath(NULL, CSIDL_DESKTOP, NULL, 0, pzPath) << pzPath << utf8_encode(pzPath);

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This is your personal 'List Editor'.
You can type in several things. This program will sort them and also count them!

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#include <iostream> 
#include <windows.h>
#include <tchar.h>
#include <Shlobj.h>

using namespace std;

int main(void) 
{ 
    TCHAR szPath[MAX_PATH];

	SHGetFolderPath(NULL, 
                     CSIDL_DESKTOP, 
                     NULL, 
                     0, 
                     szPath);

	wcout << szPath;
}

Edit: Nur mal so am Rand es gibt auch wifstream, wofstream, etc. die verlangen dann statt chars wchar_t was = TCHAR ist.

#include <iostream>
#include <fstream>
#include <string>
#include <map>
#include <Shlobj.h>
#include <windows.h> 
#include <tchar.h>

using namespace std;

string utf8_encode(const wstring &wstr) 
{ 
    int size_needed = WideCharToMultiByte(CP_UTF8, 0, &wstr[0], (int)wstr.size(), NULL, 0, NULL, NULL); 
    string strTo( size_needed, 0 ); 
    WideCharToMultiByte                  (CP_UTF8, 0, &wstr[0], (int)wstr.size(), &strTo[0], size_needed, NULL, NULL); 
    return strTo; 
}

string trim(string& str)
{
	while((str[0] == '\n') || (str[0] == ' ') || (str[0] == '\t'))
		str = str.substr(1);

	return str;
}

string trim(string str)
{
	while((str[0] == '\n') || (str[0] == ' ') || (str[0] == '\t'))
		str = str.substr(1);

	return str;
}

map<string, int> read_in()
{
	map<string, int> content;
	string ram;

	cout << "\n\nPlease type in your names. To end this Stream type only: 'e'\n";

	do
	{
		cout << "\nNext:";

		getline(cin, ram);
		if(ram != "e")
			content[ram]++;

	}while(ram != "e");

	return content;
}

void make_list(map<string, int> content)
{
	ofstream datei;
	TCHAR pzPath[MAX_PATH];

	typedef map<string, int>::iterator iterTyp;

	SHGetFolderPath(NULL, CSIDL_DESKTOP, NULL, 0, pzPath);
	datei.open((utf8_encode(pzPath) + "\\The List.txt").c_str(), ios_base::out);

	datei << "Name:";

	for(iterTyp it = content.begin(); it != content.end(); ++it)
	{
		datei << "\n" << it->first;
		if(it->second != 1)
			datei << " x " << (it->second);
	}

	datei.close();

	cout << "Name:";

	for(iterTyp it = content.begin(); it != content.end(); ++it)
	{
		cout << "\n" << it->first;
		if(it->second != 1)
			cout << " x " << (it->second);
	}
}

int main()
{
	cout << "Welcome!\n\n\n" <<
		"This is your personal 'List Editor'.\n" <<
		"You can type in several things. This program will sort them and also count them!\n\n\n" <<
		"Press any key to start!";

	cin.get();

	make_list(read_in());

	cout << "\n\nEverything is done.\n\n" <<
		"You'll find the list on your desktop with the name 'The List'!\n\n\n" <<
		"Press any key to quit!";

	cin.get();

	return 0;
}

Danke an euch alle!

Nur mal so am Rand es gibt auch wifstream, wofstream, etc. die verlangen dann statt chars wchar_t was = TCHAR ist.