Thread: Problem

Hi, again
what have I did wrong in this code?

Code:

#include <iostream>

// The CHelloApp class
class CHelloApp : public CWinApp
{
    public:
        BOOL InitInstance();
};

// The CHelloWnd class
class CHelloWnd : public CFrameWnd
{
    public:
        CHelloWnd();
    protected:
        afx_msg void OnPaint();
        DECLARE_MESSAGE_MAP()
};

// InitInstance - Returns TRUE if initialization is successful.
BOOL CHelloApp::InitInstance()
{
    m_pMainWnd = new CHelloWnd;
    if( m_pMainWnd != 0 )
    {
        m_pMainWnd->ShowWindow( m_nCmdShow );
        m_pMainWnd->UpdateWindow();
        return TRUE;
    }
    else
        return FALSE;
}

// Create a message map that handles one message - WM_PAINT
BEGIN_MESSAGE_MAP( CHelloWnd, CFrameWnd )
    ON_WM_PAINT()
END_MESSAGE_MAP()

CHelloWnd::CHelloWnd()
{
    Create( NULL, "Hello" );
}

// OnPaint - Handles the WM_PAINT message from Windows.
void CHelloWnd::OnPaint()
{
    CPaintDC    dc(this);
    dc.TextOut(50, 50, "Hello World!", 12);
}

// Create a single instance of the application.
CHelloApp   theApplication;

Compilator: Default compiler
Kör g++.exe...
g++.exe "C:\Documents and Settings\Andreas\Mina dokument\project\DOS\Hellowin.cpp" -o "C:\Documents and Settings\Andreas\Mina dokument\project\DOS\Hellowin.exe" -I"C:\Dev-Cpp\include\c++" -I"C:\Dev-Cpp\include\c++\mingw32" -I"C:\Dev-Cpp\include\c++\backward" -I"C:\Dev-Cpp\include" -L"C:\Dev-Cpp\lib"
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:5: parse
error before `{' token
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:12: parse
error before `{' token
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:18: ISO
C++ forbids declaration of `DECLARE_MESSAGE_MAP' with no type
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp: In

function `int DECLARE_MESSAGE_MAP()':
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:18: parse
error before `}' token
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:22: invalid
use of undefined type `class CHelloApp'
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:4: forward

declaration of `class CHelloApp'
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp: In
member function `BOOL CHelloApp::InitInstance()':
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:23: `
m_pMainWnd' undeclared (first use this function)
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:23: (Each
undeclared identifier is reported only once for each function it appears
in.)
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:23: invalid

use of undefined type `class CHelloWnd'
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:11: forward
declaration of `class CHelloWnd'
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:26: `
m_nCmdShow' undeclared (first use this function)

C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp: At
global scope:
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:35: type
specifier omitted for parameter `CFrameWnd'
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:36: ISO
C++ forbids declaration of `BEGIN_MESSAGE_MAP' with no type
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp: In
function `int BEGIN_MESSAGE_MAP(CHelloWnd)':
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:36: `
<anonymous>' has incomplete type
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:11: forward
declaration of `class CHelloWnd'
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:36: parse
error before `(' token
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:37: ISO
C++ forbids declaration of `ON_WM_PAINT' with no type
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp: In

function `int ON_WM_PAINT()':
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:39: ISO
C++ forbids declaration of `END_MESSAGE_MAP' with no type
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp: In
function `int END_MESSAGE_MAP()':
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:40: invalid
use of undefined type `class CHelloWnd'
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:11: forward
declaration of `class CHelloWnd'
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp: In
constructor `CHelloWnd::CHelloWnd()':
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:41: `
Create' undeclared (first use this function)

C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:46: invalid
use of undefined type `class CHelloWnd'
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:11: forward
declaration of `class CHelloWnd'
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp: In
member function `void CHelloWnd::OnPaint()':
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:47: `
CPaintDC' undeclared (first use this function)

C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:47: parse
error before `(' token
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:48: `
dc' undeclared (first use this function)

C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp: At
global scope:
C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:52: aggregate
`CHelloApp theApplication' has incomplete type and cannot be defined

C:/Documents and Settings/Andreas/Mina dokument/project/DOS/Hellowin.cpp:52: storage
size of `theApplication' isn't known

Running complete

First you should include windows.h
That will probably get rid of most of the errors.

But i won´t works

Did you include windows.h?? If so then I believe this is MFC code which you cant (at least what I know) use in dev.

#include <iostream>

---> #include <iostream.h> ?? not sure if that maters

That is not it. This is windows code. I have a small suspicion he tries to use MFC code but MFC is (as far as I know) not supported by his compiler.

why not?

I dont know if it is MFC code but if it is it is completely microsoft specific and I think only their compilers support it ( Visual C++).

Well this looks exactly like a basic MFC app so I will assume that it is, and like the rest of you, my first thought was Dev-C++ doesn't support MFC.