MessageBox

[Mushroom Realm]

How would i make a messagebox display a variables contents, right now it gives me compile 'cant convert string to char*', and it gives me the smae error when i give it a char* or the & of either.

[MoMad]

Show me how you call your messagebox

[SteveCRM]

i think strings might need to use the string.c_str()

i think the string class has that

[Mushroom Realm]

#include <windows.h>
#include <iostream.h>
#include <string>

int main()
{
string name;
cout<<"Whats your name?\n";
cin>>name;
MessageBox(NULL, name, name, MB_OK);
return 0;
}

thats the chunk

[MoMad]

Originally posted by Mushroom Realm
#include <windows.h>
#include <iostream.h>
#include <string>

int main()
{
string name;
cout<<"Whats your name?\n";
cin>>name;
MessageBox(NULL, name, name, MB_OK);
return 0;
}

thats the chunk

try:

MessageBox(NULL, name.c_str(), name.c_str(), MB_OK); 

[parksie]

Replace iostream.h with iostream, and add a using namespace std; (use Google to find out, or look round the forums for why).

[MoMad]

Yes, because the new string overloads the operator char * () right parksie?

[parksie]

Nope. There's a good reason why the standard string does *not* have an implicit conversion to char*.

It messes up all the type-detection, so in the end it's much less useful for optimisations.

[MoMad]

coool

[CornedBee]

Quite confusing for people who only used CString all the time...
Yet it does make a lot of sense.

[CornedBee]

BTW if you care for UNICODE compatibility (easier localization and faster execution in WinNT/2k/XP) you should use this instead of string:

typedef basic_string<TCHAR> tstring;

You must still include <string>.
Use tstring just like string, but also include <tchar.h> and always use the _T() macro to wrap all your literal strings.
tstrign mystr = _T("Hello, UNICODE!");