Working Code for String Truncate: For OS 3.0

[Oguri, Joe]

   I must have 3.0 also.. there is no WinDrawTruncChars on my system. So,
from reading the other
  postings on how to write your own, I wrote one that works for me. This
should save you about 45 
  seconds (120 if you have to look up the API like I did).

void
TrimString(CharPtr Str, Int Pixels)
{
    Int   sWid, sLen;
    Boolean fit;

    sWid = Pixels - 6;
    sLen = StrLen(Str);
    FntCharsInWidth(Str, &sWid, &sLen, &fit);
    if (!fit) {
       Str[sLen] = 0;
       StrCat(Str, "...");
       } 
}