C++ SimpleGUI::Init方法代码示例

bool InitWindowsApp(HINSTANCE instanceHandle, int show)
{
	//ShowCursor(0);

	// The first task to creating a window is to describe some of its 
	// characteristics by filling out a WNDCLASS structure.
	WNDCLASS wc;
	wc.style         = CS_HREDRAW | CS_VREDRAW;
	wc.lpfnWndProc   = WndProc; 
	wc.cbClsExtra    = 0;
	wc.cbWndExtra    = 0;
	wc.hInstance     = instanceHandle;
	wc.hIcon         = LoadIcon(0, IDI_APPLICATION);
	wc.hCursor       = LoadCursor(0, IDC_CROSS);
	wc.hbrBackground = (HBRUSH)GetStockObject(NULL_BRUSH);
	wc.lpszMenuName  = 0;
	wc.lpszClassName = L"BasicWndClass";

	// Next, we register this WNDCLASS instance with Windows so that we can 
	// create a window based on it.
	if(!RegisterClass(&wc)) 
	{
		MessageBox(0, L"RegisterClass FAILED", 0, 0);
		return false;
	}

	// With our WNDCLASS instance registered, we can create a window with the
	// CreateWindow function.  This function returns a handle to the window it
	// creates (an HWND).  If the creation failed, the handle will have the value
	// of zero.  A window handle is a way to refer to the window, which is internally
	// managed by Windows.  Many of the Win32 API functions that operate on windows
	// require an HWND so that they know what window to act on.

	RECT rc;
	rc.left = 0;
	rc.top = 0;
	rc.right = SCREEN_WIDTH;
	rc.bottom = SCREEN_HEIGHT;
	AdjustWindowRect(&rc, WS_OVERLAPPEDWINDOW, false);

	g_Hwnd = CreateWindow(
		L"BasicWndClass",	 // Registered WNDCLASS instance to use.
		L"Gruppuppgift",	// window title
		WS_OVERLAPPEDWINDOW, // style flags
		CW_USEDEFAULT,		 // x-coordinate
		CW_USEDEFAULT,       // y-coordinate
		rc.right - rc.left,        // width
		rc.bottom - rc.top,       // height
		0,               // parent window
		0,               // menu handle
		instanceHandle,      // app instance
		0);              // extra creation parameters

	if(g_Hwnd == 0)
	{
		MessageBox(0, L"CreateWindow FAILED", 0, 0);
		return false;
	}

	// Even though we just created a window, it is not initially shown.  
	// Therefore, the final step is to show and update the window we just
	// created, which can be done with the following two function calls.
	// Observe that we pass the handle to the window we want to show and
	// update so that these functions know which window to show and update.

	ShowWindow(g_Hwnd, show);
	UpdateWindow(g_Hwnd);

	//________________________________

	// Fill out a DXGI_SWAP_CHAIN_DESC to describe our swap chain.
	DXGI_SWAP_CHAIN_DESC sd;
	sd.BufferDesc.Width  = SCREEN_WIDTH;
	sd.BufferDesc.Height = SCREEN_HEIGHT;
	sd.BufferDesc.RefreshRate.Numerator = 60;
	sd.BufferDesc.RefreshRate.Denominator = 1;
	sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;

	// No multisampling.
	sd.SampleDesc.Count   = 1;
	sd.SampleDesc.Quality = 0;

	sd.BufferUsage  = DXGI_USAGE_RENDER_TARGET_OUTPUT;
	sd.BufferCount  = 1;
	sd.OutputWindow = g_Hwnd;
	sd.Windowed     = true;
	sd.SwapEffect   = DXGI_SWAP_EFFECT_DISCARD;
	sd.Flags        = 0;

	D3D10CreateDeviceAndSwapChain(
		0,                 //default adapter
		D3D10_DRIVER_TYPE_HARDWARE,
		0,                 // no software device
		0, 
		D3D10_SDK_VERSION,
		&sd,
		&mSwapChain,
		&md3dDevice);

	ID3D10Texture2D* backBuffer;
//.........这里部分代码省略.........