Loading Bitmap

[Haheehi]

How to load a Bitmap on the window.I can't get the what bitblt to work!

 

[quangdaotran]

For example, see below code to know how to use BitBlt:

void CButton3D::PaintBkInternal(CDC *pDC)
{
	CRect rect;
	GetClientRect(rect);
	if ( m_dcBk.m_hDC == NULL)
	{
		CDC bitmapDC;
		bitmapDC.CreateCompatibleDC( pDC);
		m_pbmpOldBk = bitmapDC.SelectObject( &m_bmpBk);
		for ( int i = rect.left; i < rect.right; i += m_cxBitmapBkGr)
			for ( int j = rect.top; j < rect.bottom; j += m_cyBitmapBkGr)
				pDC->BitBlt( i, j, m_cxBitmapBkGr, m_cyBitmapBkGr, &bitmapDC, 0, 0, SRCCOPY );
		//pDC->BitBlt(0, 0, rect.Width(), rect.Height(), &bitmapDC, 0, 0, SRCCOPY);
	}
}

void CButton3D::SetBkInternal(UINT nBitmapID)
{
	if ( m_bmpBk.LoadBitmap( nBitmapID))
	{
		BITMAP bm;
		m_bmpBk.GetBitmap( &bm );
		m_cxBitmapBkGr = bm.bmWidth;
		m_cyBitmapBkGr = bm.bmHeight;
		if ( (m_cxBitmapBkGr > 0) && (m_cyBitmapBkGr > 0))
			m_bBkInternal = TRUE;
	}
}