VC DrawText显示多行，包括设置行距。

int   DrawMultLineText(HDC   hDC   ,   int   nXStart   ,   int   nYStart   ,   int   nWidth   ,   int   nRowHeight   ,   LPCTSTR   pBuff)   
  {   
  TEXTMETRIC   tm;   
    
  LPCTSTR   pChar;   
    
  if(!GetTextMetrics(hDC   ,   &tm))   
  return   0;   
  CPoint   posStart   ,   posCurr;   
  int   nRowCount   =   0;   
  pChar   =   pBuff;   
    
  posStart.SetPoint(nXStart   ,   nYStart);   
    
  for(;   *pChar   ;   pChar++)   
  {   
  if(*pChar   ==   '\t')   
  {   
  MovePos(posStart   ,   posCurr   ,   nWidth   ,nRowHeight   ,   tm.tmAveCharWidth   ,   4);   
                  }   
  else   
  {   
  if(*pChar   ==   '\r')   
  {   
  posCurr.y   +=   nRowHeight;   
  posCurr.x   =   posStart.x;   
  if(   *(pChar   +   1)   ==   '\n')   
  pChar++;   
  }   
  else   
  if(*pChar   ==   '\n')   
  {   
                                  posCurr.y   +=   nRowHeight;   
  posCurr.x   =   posStart.x;     
  }   
  else   
  if(   IsChineseChar(pChar))   
  {   
  TextOut(hDC   ,   posCurr.x   ,   posCurr.y   ,pChar   ,   2);   
    MovePos(posStart   ,   posCurr   ,   nWidth   ,nRowHeight   ,   tm.tmMaxCharWidth   ,   1)   ;   
  pChar   ++;   
  }   
  else   
  {   
  TextOut(hDC   ,   posCurr.x   ,   posCurr.y   ,pChar   ,   1);   
  MovePos(posStart   ,   posCurr   ,   nWidth   ,nRowHeight   ,   tm.tmAveCharWidth   ,   1);   
  }   
  }   
  }   
  return   (posCurr.y   +   posStart.y)   /   nRowHeight;   
  }   
    
  void   MovePos(const   POINT   &posStart   ,   POINT   &posCurr   ,   int   nColWidth   ,   int   nRowHeight   ,   int   nCharWidth   ,   int   nCount)   
  {   
  int   i;   
  if(nColWidth   <   nCharWidth)   
  return;   
  if(posStart.x   >   posCurr.x)   
  posCurr.x   =   posStart.x;   
  if(posStart.y   >   posCurr.y)   
  posCurr.y   =   posStart.y;   
    
  for(i   =   0   ;   i   <   nCount   ;   i++)   
  {   
                  posCurr.x   +=   nCharWidth;   
  if(posCurr.x   >   nColWidth)   
  {   
  posCurr.x   =   posStart.x;   
  posCurr.y   +=   nRowHeight;   
  }   
  }   
  }
  BOOL   IsChineseChar(LPCTSTR   str)   
  {   
  return   *str   <   0   &&   (*(str   +   1))   <   0;   
  }