Converting twips to client coordinates

I'm using a rich edit control which supports tables. I need to convert twips (which indicate the column width) into client coordinates. Any help?
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A twip is a 20th of a typographical point, which is 1/72 th of an inch.
The resolustion of an inch on screen can be found with GetDeviceCaps,
So, a twip (height) is LOGPIXELSY/72/20.

This function could help you

#define TWIPS_PER_INCH 1440

int TwipsToPixels(CDC* pDC, int iNbTwips, BOOL bY)
  int iNbPixels = 0;

  if (pDC != NULL)
    int iDeviceCaps;

    if (bY == TRUE)
      iDeviceCaps = pDC->GetDeviceCaps(LOGPIXELSY)­;
      iDeviceCaps = pDC->GetDeviceCaps(LOGPIXELSX)­;

    iNbPixels = MulDiv(iNbTwips, iDeviceCaps, TWIPS_PER_INCH);

  return iNbPixels;


The above function will return in screen coordinates. You will need to change it to client coordinates using the ScreenToClient API


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ashugarg00Author Commented:
Thanks a lot,
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