Path: utzoo!attcan!uunet!samsung!zaphod.mps.ohio-state.edu!rpi!uupsi!rodan.acs.syr.edu!jfbruno
From: jfbruno@rodan.acs.syr.edu (John Bruno)
Newsgroups: comp.windows.ms
Subject: Mistakes in SDK3.0 documentation?
Message-ID: <1990Sep19.190320.25693@rodan.acs.syr.edu>
Date: 19 Sep 90 19:03:20 GMT
Sender: jfbruno@rodan.acs.syr.edu (John Bruno)
Organization: Integrated Healthcare Technologies, Inc.
Lines: 25

I believe I have found a minor error in the "Guide to Programming" book that
is supplied with SDK 3.0.  It's in the StringOut function on page 18-6. This
function is supposed to write a string in the given font, then reset to the
previous font and return the length of the string.  The function first 
switches the font, then writes the text, then restores the original font,
then calculates and returns the length.  The length should be calculated 
before switching back to the original font, like so:

WORD StringOut(hDC, etc)
...
{
  HANDLE hPrevFont;
  WORD length;
  
  hPrevFont = SelectObject(hDC, hFont);
  TextOut(hDC, X, Y, lpString, lstrlen(lpString));
  length=LOWORD(GetTextExtent(hDC, lpString, lstrlen(lpString)));
  SelectObject(hDC, hPrevFont);
  return(length);
}

Since I'm just learning about Win3, I'm wondering if anyone has noticed any
other problems with the SDK.  If so, please post.

---jb