PNG画到picture Control上

	CClientDC *pDC = new CClientDC(GetDlgItem(IDC_STATIC));
	CRect rect;
	this->GetDlgItem(IDC_STATIC)->GetClientRect(&rect);

	CImage png;
	png.Load(L"C:\\Users\\LF\\Desktop\\2.png");
	for(unsigned i = 0; i < png.GetWidth(); ++i)
	{
		for(unsigned j = 0; j < png.GetHeight(); ++j)
		{
			byte* pucolor = (byte*)png.GetPixelAddress(i, j);
			pucolor[0] = pucolor[0] * pucolor[3] / 255;
			pucolor[1] = pucolor[1] * pucolor[3] / 255;
			pucolor[2] = pucolor[2] * pucolor[3] / 255;
		}
	}
	png.Draw(pDC->m_hDC, CRect(rect.left, rect.top, png.GetWidth(), png.GetHeight()));