How can I display icons in cells?

Here is a sample icon cell type class:

// In the .h file
class CGXIconControl : public CGXStatic
{
   DECLARE_CONTROL(CGXIconControl)
public:
   CGXIconControl(CGXGridCore* pGrid);
   virtual ~CGXIconControl();
   virtual void Draw(CDC* pDC, CRect rect, ROWCOL nRow, ROWCOL nCol, const CGXStyle& style, const CGXStyle* pStandardStyle);
};

// in the .cpp file

IMPLEMENT_CONTROL(CGXIconControl, CGXStatic);
CGXIconControl::CGXIconControl(CGXGridCore* pGrid)
   : CGXStatic(pGrid)
{
}
CGXIconControl::~CGXIconControl()
{
}
void CGXIconControl::Draw(CDC* pDC, CRect rect, ROWCOL nRow, ROWCOL nCol, const CGXStyle& style, const CGXStyle* pStandardStyle)
{
   ASSERT(pDC != NULL && pDC->IsKindOf(RUNTIME_CLASS(CDC)));
   // ASSERTION-> Invalid Device Context ->END
   ASSERT(nRow <= Grid()->GetRowCount() && nCol <= Grid()->GetColCount());
   // ASSERTION-> Cell coordinates out of range ->END
   ASSERT_VALID(pDC);
   DrawBackground(pDC, rect, style);

   if (rect.right <= rect.left || rect.Width() <= 1 || rect.Height() <= 1)
      return;
   CString str = style.GetIncludeValue() ? style.GetValue() : _T("");
   if(str.Left(4) == _T("#ICO"))
   {
      int n = str.Find(_T(")"));
      CString strIDResource = str.Mid(5,n-5);
      UINT nIDResource = _ttoi(strIDResource);
      HICON hIcon = AfxGetApp()->LoadIcon (nIDResource);
      CRect r = CGXControl::GetCellRect(nRow, nCol, rect, &style);
      pDC->DrawIcon(r.left, r.top, hIcon);
      // child Controls: spin-buttons, hotspot, combobox btn, ...
      CGXControl::Draw(pDC, rect, nRow, nCol, style, pStandardStyle);
   }
}

You could register this control in any of your projects and use it as shown below:

      CGXIconControl* iconControl = new CGXIconControl(this);
      RegisterControl(GX_IDS_CTRL_ICON, iconControl);
      SetStyleRange(CGXRange(7,7), CGXStyle().SetControl(GX_IDS_CTRL_ICON)
         .SetValue("#ICO(149)")
            );

Of course, setup a GX_IDS_CTRL_ICON string resource first. Note that the above code will draw the icon in the resource with the id 149.