#include <windows.h>#include <D3D11.h>#include <D2D1.h>#include <DXErr.h>#include <DXGI.h>// Libs#pragma comment (lib, "D3D11.lib")#pragma comment (lib, "D2D1.lib")#pragma comment (lib, "DXErr.lib")#pragma comment (lib, "DXGI.lib")LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);// Mainint WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {	// Register windowclass	WNDCLASSEX wc;	ZeroMemory(&wc, sizeof(wc));	wc.cbSize = sizeof(wc);	wc.lpszClassName = TEXT("MyClass");	wc.hInstance = hInstance;	wc.lpfnWndProc = WndProc;	wc.hCursor = LoadCursor(NULL, IDC_ARROW);	wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);	RegisterClassEx(&wc);		// Create window	HWND hWnd = CreateWindow(		wc.lpszClassName,		TEXT("D3D11 with Direct2D"),		WS_OVERLAPPEDWINDOW,		CW_USEDEFAULT,		CW_USEDEFAULT,		CW_USEDEFAULT,		CW_USEDEFAULT,		NULL,		NULL,		hInstance,		NULL	);		// Create DXGI factory to enumerate adapters	IDXGIFactory1 *pDXGIFactory;		HRESULT hResult = CreateDXGIFactory1(__uuidof(IDXGIFactory1), (void**)&pDXGIFactory);	if(FAILED(hResult)) {		MessageBox(NULL, DXGetErrorDescription(hResult), TEXT("CreateDXGIFactory1"), MB_OK);		return 0;	}		// Use the first adapter	IDXGIAdapter1 *pAdapter;		hResult = pDXGIFactory->EnumAdapters1(0, &pAdapter);	if(FAILED(hResult)) {		MessageBox(NULL, DXGetErrorDescription(hResult), TEXT("EnumAdapters1"), MB_OK);		return 0;	}		pDXGIFactory->Release();		// Create D3D11 device and swapchain	DXGI_SWAP_CHAIN_DESC scd;	ID3D11Device *pDevice11;	IDXGISwapChain *pSwapChain;	ID3D11DeviceContext *pImmediateContext;		ZeroMemory(&scd, sizeof(scd));	scd.BufferDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;	scd.SampleDesc.Count = 1;	scd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;	scd.BufferCount = 1;	scd.OutputWindow = hWnd;	scd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;	scd.Windowed = TRUE;		hResult = D3D11CreateDeviceAndSwapChain(		pAdapter,		D3D_DRIVER_TYPE_UNKNOWN,		NULL,		D3D11_CREATE_DEVICE_DEBUG |			D3D11_CREATE_DEVICE_BGRA_SUPPORT |			D3D11_CREATE_DEVICE_SINGLETHREADED,		NULL,		0,		D3D11_SDK_VERSION,		&scd,		&pSwapChain,		&pDevice11,		NULL,		&pImmediateContext	);	if(FAILED(hResult)) {		MessageBox(NULL, DXGetErrorDescription(hResult), TEXT("D3D11CreateDeviceAndSwapChain"), MB_OK);		return 0;	}		// Get the D3D11 back-buffer	ID3D11Texture2D *pBackBuffer11;	D3D11_TEXTURE2D_DESC backBufferDesc;		hResult = pSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), reinterpret_cast<void**>(&pBackBuffer11));	if(FAILED(hResult)) {		MessageBox(NULL, DXGetErrorDescription(hResult), TEXT("pSwapChain->GetBuffer for ID3D11Texture2D"), MB_OK);		return 0;	}		pBackBuffer11->GetDesc(&backBufferDesc);		// Create the texture to draw D2D content to	D3D11_TEXTURE2D_DESC textureDesc;	ID3D11Texture2D *pTexture;		ZeroMemory(&textureDesc, sizeof(textureDesc));	textureDesc.Width = backBufferDesc.Width;	textureDesc.Height = backBufferDesc.Height;	textureDesc.MipLevels = 1;	textureDesc.ArraySize = 1;	textureDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;	textureDesc.SampleDesc.Count = 1;	textureDesc.Usage = D3D11_USAGE_DEFAULT;	textureDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET;	textureDesc.MiscFlags = D3D11_RESOURCE_MISC_GDI_COMPATIBLE;		hResult = pDevice11->CreateTexture2D(&textureDesc, NULL, &pTexture);	if(FAILED(hResult)) {		MessageBox(NULL, DXGetErrorDescription(hResult), TEXT("pDevice11->CreateTexture2D"), MB_OK);		return 0;	}		// Get DXGI surface from texture	IDXGISurface1 *pSurface;		hResult = pTexture->QueryInterface(__uuidof(IDXGISurface1), (void**)&pSurface);	if(FAILED(hResult)) {		MessageBox(NULL, DXGetErrorDescription(hResult), TEXT("pTexture->QueryInterface for IDXGISurface1"), MB_OK);		return 0;	}		// Create D2D factory	ID2D1Factory *pD2DFactory;		hResult = D2D1CreateFactory(D2D1_FACTORY_TYPE_SINGLE_THREADED, __uuidof(ID2D1Factory), (void**)&pD2DFactory);	if(FAILED(hResult)) {		MessageBox(NULL, DXGetErrorDescription(hResult), TEXT("D2D1CreateFactory"), MB_OK);		return 0;	}		// Create D2D DC render target	D2D1_RENDER_TARGET_PROPERTIES renderTargetProperties;	ID2D1DCRenderTarget *pD2DRenderTarget;		ZeroMemory(&renderTargetProperties, sizeof(renderTargetProperties));	renderTargetProperties.type = D2D1_RENDER_TARGET_TYPE_HARDWARE;	renderTargetProperties.pixelFormat = D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_PREMULTIPLIED);		hResult = pD2DFactory->CreateDCRenderTarget(&renderTargetProperties, &pD2DRenderTarget);	if(FAILED(hResult)) {		MessageBox(NULL, DXGetErrorDescription(hResult), TEXT("pD2DFactory->CreateDCRenderTarget"), MB_OK);		return 0;	}		pD2DFactory->Release();		// Create a solid color brush to draw something with	ID2D1SolidColorBrush *pBrush;		hResult = pD2DRenderTarget->CreateSolidColorBrush(D2D1::ColorF(1.0f, 1.0f, 0.0f, 1.0f), &pBrush);	if(FAILED(hResult)) {		MessageBox(NULL, DXGetErrorDescription(hResult), TEXT("pD2DRenderTarget->CreateSolidColorBrush"), MB_OK);		return 0;	}		// Main loop	float angle = 0.0f;		ShowWindow(hWnd, nCmdShow);	while(true) {		MSG msg;		if(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) != 0) {			if(msg.message == WM_QUIT)				break;			else {				TranslateMessage(&msg);				DispatchMessage(&msg);			}		}		else {			// Get surface DC for the texture			HDC hDC;			hResult = pSurface->GetDC(TRUE, &hDC);			if(FAILED(hResult)) {			}			else {				// The rect of the texture to draw to with D2D				RECT rect;				SetRect(&rect, 0, 0, backBufferDesc.Width, backBufferDesc.Height);								// Bind the DC render target to the HDC				hResult = pD2DRenderTarget->BindDC(hDC, &rect);				if(FAILED(hResult)) {				}				else {					// Draw D2D content					angle += 360.0f / 200.0f;										pD2DRenderTarget->BeginDraw();										pD2DRenderTarget->Clear(D2D1::ColorF(0.0f, 0.7f, 0.0f, 1.0f));										D2D1_SIZE_F size = pD2DRenderTarget->GetSize();										pD2DRenderTarget->SetTransform(D2D1::Matrix3x2F::Rotation(angle, D2D1::Point2F(size.width/2.0f, size.height/2.0f)));										pBrush->SetColor(D2D1::ColorF(1.0f, 1.0f, 0.0f, 1.0f));					pD2DRenderTarget->DrawEllipse(						D2D1::Ellipse(D2D1::Point2F(size.width/2.0f, size.height/2.0f), size.height/3.0f, size.height/3.0f),						pBrush,						32.0f,						NULL					);										pBrush->SetColor(D2D1::ColorF(1.0f, 0.0f, 0.0f, 1.0f));					pD2DRenderTarget->DrawEllipse(						D2D1::Ellipse(D2D1::Point2F(size.width/4.0f, size.height/2.0f), size.height/4.0f, size.height/4.0f),						pBrush,						32.0f,						NULL					);										pBrush->SetColor(D2D1::ColorF(0.0f, 0.0f, 1.0f, 1.0f));					pD2DRenderTarget->DrawEllipse(						D2D1::Ellipse(D2D1::Point2F(size.width*3.0f/4.0f, size.height/2.0f), size.height/4.0f, size.height/4.0f),						pBrush,						32.0f,						NULL					);										pD2DRenderTarget->EndDraw();				}								// Release the DC specifying the dirty rect				pSurface->ReleaseDC(&rect);			}						// Copy the content from the texture to the back-buffer			pImmediateContext->CopyResource(pBackBuffer11, pTexture);									// Present to screen			pSwapChain->Present(1, 0);		}	}		// Release	pSwapChain->SetFullscreenState(FALSE, NULL);		pImmediateContext->ClearState();		pBrush->Release();	pD2DRenderTarget->Release();		pSurface->Release();	pTexture->Release();	pBackBuffer11->Release();		pImmediateContext->Flush();		pImmediateContext->Release();	pSwapChain->Release();	pDevice11->Release();		UnregisterClass(wc.lpszClassName, hInstance);		return 0;}// Window procedureLRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) {	switch(msg) {		// Window destroyed.		case WM_DESTROY:			PostQuitMessage(0);		return 0;	}		return DefWindowProc(hWnd, msg, wParam, lParam);}