I want to change the fonts of the text in my mutli-line editbox. I've found how to change the default font of the entire control, but it is possible to just change one line to either bold or underline? If so, how?

For example: I currently write to the editbox like this:
CString textstr = "hello world\r\nFoobar";
CEdit * Editbox1 = (CEdit*) GetDlgItem(IDC_EDIT1);
Editbox1 ->SetWindowText(textstr);

How would I make "Foobar" bold, and "hello world" regular?