How to set the multiline text in the EditBox programmatically

I have a following dialog

Code:

---

IDD_ABOUTBOX DIALOG DISCARDABLE  22, 17, 230, 75
STYLE DS_MODALFRAME | WS_CAPTION | WS_SYSMENU
CAPTION "About"
FONT 8, "System"
BEGIN
    ICON            IDI_MYPLAYER,IDC_MYICON,14,9,20,20
    LTEXT          "MyPlayer Version 1.0",IDC_STATIC,49,10,119,8,
                    SS_NOPREFIX
    LTEXT          "Copyright (C) 2007",IDC_STATIC,49,20,119,8
    DEFPUSHBUTTON  "OK",IDOK,195,6,30,11,WS_GROUP
    EDITTEXT        IDC_OSVER,49,36,144,32,ES_MULTILINE | ES_AUTOVSCROLL |
                    ES_AUTOHSCROLL | ES_READONLY
END

---

In the Dialog procedure I do the following:

Code:

---

switch (message)
{
        case WM_INITDIALOG:
        {
              SetDlgItemText(hDlg,IDC_OSVER,"Hello\nworld");
        }
        return TRUE;
...
}

---

But the text does not split in two lines... It is shown on one line.
And if the text is longer than the EditBox - the scroll bar does not appears...

How could I add the multiline text to the Multiline editbox on dilog opening, so the scrollbars will be visible when needed?

It might be better to use a richedit control.

> "Hello\nworld"
You could try the other combinations of "\r" or "\r\n".
It seems likely they would have used what the native file system used when this was first invented.

Thanks

\r\n did the trick.

There is the second problem left:
When the text is longer than edit control the scroll bar does not appers.
I thought ES_AUTOHSCROLL is enough to show the scrollbar... Should I sent some additional message?

WS_HSCROLL and/or WS_VSCROLL