Re: transparent CheckBox/radioBox

This is the way I implemented a transparent checkbox/radiobutton
As with David's, mine only has the text part transparent. If you want the
actual box transparent, you will have to create your own control from
scratch.

// CTransparentCheckBox

class CTransparentCheckBox : public CButton
{
 DECLARE_DYNAMIC(CTransparentCheckBox)

public:
 CTransparentCheckBox();
 virtual ~CTransparentCheckBox();

protected:
 DECLARE_MESSAGE_MAP()
public:
   afx_msg HBRUSH CtlColor(CDC* /*pDC*/, UINT /*nCtlColor*/);
   afx_msg BOOL OnEraseBkgnd(CDC* pDC);
};

//////////////////////////////////////////////////////////////////////////////////////////////////
IMPLEMENT_DYNAMIC(CTransparentCheckBox, CButton)
CTransparentCheckBox::CTransparentCheckBox()
{
}

CTransparentCheckBox::~CTransparentCheckBox()
{
}

BEGIN_MESSAGE_MAP(CTransparentCheckBox, CButton)
   ON_WM_CTLCOLOR_REFLECT()
   ON_WM_ERASEBKGND()
END_MESSAGE_MAP()

// CTransparentCheckBox message handlers

HBRUSH CTransparentCheckBox::CtlColor(CDC* pDC, UINT /*nCtlColor*/)
{
   pDC->SetBkMode(TRANSPARENT);
   return (HBRUSH)GetStockObject(HOLLOW_BRUSH);
}

BOOL CTransparentCheckBox::OnEraseBkgnd(CDC* pDC)
{
   return TRUE;
}

AliR.

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