The Grid Control

    else if (m_MouseMode == MOUSE_SIZING_COL)
    {
        CRect rect;
        GetClientRect(rect);
        CRect invertedRect(m_LastMousePoint.x, rect.top, m_LastMousePoint.x + 2, rect.bottom);
        
        CDC* pDC = GetDC();
        if (pDC)
        {
            pDC->InvertRect(&invertedRect);
            ReleaseDC(pDC);
        }
        
        if (m_LeftClickDownPoint != point && (point.x != 0 || point.y != 0)) // 0 pt fix by email1@bierling.net
        {   
            CPoint start;
            if (!GetCellOrigin(m_LeftClickDownCell, &start))
            {
				return;
			}

			int nCol         = m_LeftClickDownCell.col;
            int nColumnWidth = max(point.x - start.x, m_bAllowColHide? 0 : 1);
			
			// check our new boolean to see if we want the original behavior or the new behavior
			if (!m_bAllowFrozenColumnResize)
			{
				SetColumnWidth(nCol, nColumnWidth);
			}
			else
			{
				// This code allows you to resize a column in either direction. 
				// The column side you're resizing towards remains frozen in 
				// place.  This allows you to anchor the edge of the grid and 
				// resize the columns within it.  jms - 02/07/2005
				if (nCol < GetColumnCount() - 1)
				{
					int nThisColWidth = GetColumnWidth(nCol);
					int nNextColWidth = GetColumnWidth(nCol + 1);
					int nWidthDiff    = nThisColWidth - nColumnWidth;

					int nNewWidth = 0;
					// grid wackiness - depending on if the nCol is shrinking or growing, we have to set
					// column widths for the two affected columns in a different order
					if (nWidthDiff > 0)
					{
						nNewWidth = nNextColWidth + nWidthDiff;
						SetColumnWidth(nCol, nColumnWidth);
						SetColumnWidth(nCol + 1, nNewWidth);
					}
					else
					{
						nNewWidth = nNextColWidth - (nColumnWidth - nThisColWidth);
						SetColumnWidth(nCol + 1, nNewWidth);
						SetColumnWidth(nCol, nColumnWidth);
					}
				}
			}

			ResetScrollBars();
			Invalidate();
		}
	}

protected:
	BOOL m_bAllowFrozenColumnResize;

public:
	void SetFrozenColumnResize(BOOL bVal) { m_bAllowFrozenColumnResize = bVal; };