Method createWindow

LuaSTGPlus/SplashWindow.cpp:64–137

}

void SplashWindow::createWindow()
{
	WNDCLASS wc = { 0 };
	wc.style = 0;
	wc.lpfnWndProc = WndProc;
	wc.cbClsExtra = 0;
	wc.cbWndExtra = 0;
	wc.hInstance = GetModuleHandle(NULL);
	wc.hIcon = NULL;
	wc.hCursor = LoadCursor(NULL, IDC_WAIT);
	wc.hbrBackground = (HBRUSH)GetSysColorBrush(COLOR_WINDOW);
	wc.lpszMenuName = NULL;
	wc.lpszClassName = CLASSNAME;

	RegisterClass(&wc);

	m_hHandle = CreateWindowEx(0,
		CLASSNAME,
		TEXT("Loading..."),
		WS_CLIPCHILDREN | WS_CLIPSIBLINGS | WS_POPUP,
		0,
		0,
		m_bkImage->GetWidth(),
		m_bkImage->GetHeight(),
		NULL,
		NULL,
		GetModuleHandle(NULL),
		0);
	SetWindowLongPtr(m_hHandle, GWLP_USERDATA, (LONG)(LONG_PTR)this);

	// �������
	SetWindowLong(m_hHandle, GWL_EXSTYLE, WS_EX_TOOLWINDOW | WS_EX_LAYERED);

	// ���´�������
	HDC dcDest = GetDC(m_hHandle);
	HDC dcSrc;
	dcSrc = CreateCompatibleDC(dcDest);
	HBITMAP bmpDest;
	bmpDest = CreateCompatibleBitmap(dcDest, m_bkImage->GetWidth(), m_bkImage->GetHeight());
	SelectObject(dcSrc, bmpDest);

	Graphics g(dcSrc);
	g.DrawImage(m_bkImage, 0, 0, m_bkImage->GetWidth(), m_bkImage->GetHeight());

	BLENDFUNCTION tBlend;
	tBlend.BlendOp = 0;
	tBlend.BlendFlags = 0;
	tBlend.AlphaFormat = 1;
	tBlend.SourceConstantAlpha = 255;

	POINT tZero = { 0, 0 };
	SIZE tSize = { static_cast<LONG>(m_bkImage->GetWidth()), static_cast<LONG>(m_bkImage->GetHeight()) };

	UpdateLayeredWindow(m_hHandle, dcDest, &tZero, &tSize, dcSrc, &tZero, 0, &tBlend, ULW_ALPHA);

	DeleteObject(bmpDest);
	DeleteDC(dcSrc);
	g.ReleaseHDC(dcSrc);