simple Bitmap Bkgd Class ?

   I have written some code to process a bitmap (with transparent areas) to
determine the region for a dialog. And I wanted to put this processing code
in a class. But there are a few simple procedures that I haven't had much
practice using.
  One question - how is the "LoadImage" statement correctly written.. I have
been using LoadBitmap, but it seems to change the color slightly. But I have
never used LoadImage. (code below)
   Next question - how is the HRGN handle returned from a member function in
this bitmap processing class to the main dialog class.

Here is the code -
====
BOOL CBmpBkgdDlg::OnInitDialog()
{
    "auto-code here"

   BmpBkgdRegion BkgdRgn; //class declaration
   BkgdRgn.AccessBmp(); //call to member function

   SetWindowRgn(hRgn,true); //set window region from hRgn
}
====
class BmpBkgdRegion
{
 public:
     HRGN AccessBmp();
     BmpBkgdRegion();
     virtual ~BmpBkgdRegion();
     HRGN hRgn;

protected:
     void ProcessBmp();
     CBitmap bmpBkgd;
};
====
HRGN BmpBkgdRegion::AccessBmp()
{
     bmpBkgd.LoadBitmap(IDB_BACKGROUND); //change to LoadImage***
     ProcessBmp();

     return hRgn; //how is this returned***
}

void BmpBkgdRegion::ProcessBmp()
{
   //processing code results with hRgn
 }
====