Re: transparent CheckBox/radioBox

From:

"David Ching" <dc@remove-this.dcsoft.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Tue, 12 Feb 2008 15:37:10 GMT

Message-ID:

<G2jsj.7066$R84.181@newssvr25.news.prodigy.net>

"D@na" <Dna@discussions.microsoft.com> wrote in message
news:BBF5389F-C6CD-4152-8AA0-477EE265ADE1@microsoft.com...

hello All..

there is something weird in my project when dealing with transparent
checkbox or radio box.. I wanna have a transparent-background CheckBox and
RadioBox
I ve tried using owner draw and implement WM_CTLCLR. The checkbox/radiobox
background will turn to black if i set my project Unicode-support. But,
everything work well if i work in a non-unicode project. Since i need to
support
Unicode, its so troublesome.
I dont get what's happening, so need your expertist ..FYI, Im using visual
studio 2005

thanks in advance

I have UNICODE project with transparent checkboxes and radio buttons. But
only the text to the right of these controls are transparent. The actual
checkbox/radio button can't be transparent (or at least I haven't found a
way). In fact, I have code that has:

HBRUSH CBaseWnd::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
    HBRUSH hbr = CWnd::OnCtlColor(pDC, pWnd, nCtlColor);

    DWORD dwStyle = pWnd->GetStyle();
    if ( dwStyle &
        (BS_AUTORADIOBUTTON | BS_RADIOBUTTON | BS_AUTOCHECKBOX |
BS_CHECKBOX) )
    {
        // Radio buttons and checkboxes have ugly gray backgrounds that
        // stick out when placed over a white background; paint the
background
        // in white for a better blend
        hbr = (HBRUSH) GetStockObject (WHITE_BRUSH);
    }

    return hbr;
}

So I explicitly set the color of the checkbox/radio button here.

-- David