Re: BitBlt Bitmap to Region ???

From:

"AliR $VC++ MVP$" <AliR@online.nospam>

Newsgroups:

microsoft.public.vc.mfc

Date:

Wed, 11 Jul 2007 20:20:10 GMT

Message-ID:

<_Xali.45967$5j1.33480@newssvr21.news.prodigy.net>

How about removing the caption flag from the dialog box.
   LONG nOldStyle = ::GetWindowLong(m_hWnd, GWL_STYLE);
   LONG nNewStyle = nOldStyle & ~WS_CAPTION;
   ::SetWindowLong(m_hWnd, GWL_STYLE, nNewStyle);
   SetWindowPos(NULL, 0, 0, 0, 0,
SWP_NOZORDER|SWP_NOMOVE|SWP_NOSIZE|SWP_NOACTIVATE|SWP_DRAWFRAME);

How is this ever true?

if(IDB_BACKGROUND == 0)
return CDialog::OnEraseBkgnd(pDC);

AliR.

"cdg" <anyone@anywhere.com> wrote in message
news:JGali.164370$Sa4.12564@bgtnsc05-news.ops.worldnet.att.net...

Could anyone help me with the code for using a bitmap as the background
for a dialog. I had thought that the code below would be the right
approach,
but I am having a problem with removing the titlebar from a Round
Rectangle
Region after BitBlt-ing a bitmap.

This code is is in OnInitDialog() -

rgnRoundRect.CreateRoundRectRgn( 0, 0, 400, 400, 23, 23 );
SetWindowRgn(rgnRoundRect,true);
DeleteObject(rgnRoundRect);

This code is in an OnEraseBkgnd message handler -

if(IDB_BACKGROUND == 0)
return CDialog::OnEraseBkgnd(pDC);

CBitmap bmpBkgd;
CDC dcMem;
CBitmap *pOldBmp;

bmpBkgd.LoadBitmap(IDB_BACKGROUND);

dcMem.CreateCompatibleDC(pDC);
pOldBmp = dcMem.SelectObject(&bmpBkgd);

CRect rect;
GetClientRect(&rect);

pDC->BitBlt(0, 0, rect.Width(),
rect.Height(), &dcMem, 0, 0, SRCCOPY);

dcMem.SelectObject(pOldBmp);
dcMem.DeleteDC();
bmpBkgd.DeleteObject();

return true;