BOOL CAttWorldNetServiceDialog::OnEraseBkgnd(CDC* pDC)
{
INHERITED::OnEraseBkgnd(pDC);
if ((m_pDDB != NULL) && (m_pDDB->IsValid()))
{
BITMAP Bitmap;
if (CBitmap::FromHandle(m_pDDB->GetBitmap())->GetObject(sizeof(Bitmap), &Bitmap) != 0)
{
CWnd* pWnd = GetDlgItem(IDC_ATTWORLDNETBMP);
if (pWnd != NULL)
{
CRect crWindow;
pWnd->GetWindowRect(crWindow);
ScreenToClient(crWindow);
CRect crBitmap(0, 0, Bitmap.bmWidth, Bitmap.bmHeight);
crBitmap.OffsetRect(crWindow.left, crWindow.top);
CPalette *pcpOld;
if ((pcpOld = pDC->SelectPalette(CPalette::FromHandle(m_pDDB->GetPalette()), FALSE)) != NULL)
{
pDC->RealizePalette();
CDC cdcBitmap;
if ((cdcBitmap.CreateCompatibleDC(pDC)) != NULL)
{
CBitmap *pcbmOld;
if ((pcbmOld = cdcBitmap.SelectObject(CBitmap::FromHandle(m_pDDB->GetBitmap()))) != NULL)
{
pDC->BitBlt(
crBitmap.left,
crBitmap.top,
crBitmap.Width(),
crBitmap.Height(),
&cdcBitmap,
0,
0,
SRCCOPY);
cdcBitmap.SelectObject(pcbmOld);
}
}
pDC->SelectPalette(pcpOld, FALSE);
pDC->RealizePalette();
}
}
}
}
return TRUE;
}
void CBitmapControl::OnPaint()
{
CPaintDC dc(this); // device context for painting
CRect crUpdate(&dc.m_ps.rcPaint);
if (!crUpdate.IsRectEmpty())
{
if (LoadBitmapResource())
{
CRect crClient;
GetClientRect(&crClient);
CRect crBitmap(0, 0, (int)m_nBitmapWidth, (int)m_nBitmapHeight);
CRect crDraw;
if (m_dwStyle & SBS_SIZEBITMAP)
{
crDraw = crClient;
}
else
{
crDraw = crBitmap;
crDraw.OffsetRect(crClient.left, crClient.top);
}
int nOldMapMode = dc.SetMapMode(MM_TEXT);
CPalette* pOldPalette;
CPalette* pCurrentPalette = CPalette::FromHandle(m_pDDB->GetPalette());
if ((pOldPalette = dc.SelectPalette(pCurrentPalette, FALSE)) != NULL)
{
dc.RealizePalette();
CDC cdcBitmap;
if ((cdcBitmap.CreateCompatibleDC(&dc)) != NULL)
{
CPalette *pOldBitmapPalette;
if ((pOldBitmapPalette = cdcBitmap.SelectPalette(pCurrentPalette, FALSE)) != NULL)
{
cdcBitmap.RealizePalette();
cdcBitmap.SetMapMode(MM_TEXT);
CBitmap *pOldBitmap;
if ((pOldBitmap = cdcBitmap.SelectObject(CBitmap::FromHandle(m_pDDB->GetBitmap()))) != NULL)
{
int nOldStretchMode = dc.SetStretchBltMode(STRETCH_DELETESCANS);
dc.StretchBlt(
crDraw.left,
crDraw.top,
crDraw.Width(),
crDraw.Height(),
&cdcBitmap,
0,
0,
m_nBitmapWidth,
m_nBitmapHeight,
SRCCOPY);
dc.SetStretchBltMode(nOldStretchMode);
cdcBitmap.SelectObject(pOldBitmap);
}
cdcBitmap.SelectPalette(pOldBitmapPalette, FALSE);
}
}
dc.SelectPalette(pOldPalette, FALSE);
}
dc.SetMapMode(nOldMapMode);
}
}
}
