Miscellany

#include <windows.h>
#include <d3d9.h>

const int SCREEN_WIDTH = 1280;
const int SCREEN_HEIGHT = 1024;
const LPCTSTR WINDOW_TITLE = L"DirectX Practice";

LPDIRECT3D9 d3d;
LPDIRECT3DDEVICE9 d3ddev;

void InitD3D(HWND hWnd);
void RenderFrame(void);
void CleanD3D(void);

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch(message)
	{
		case WM_DESTROY:
			PostQuitMessage(0);
			return 0;
			break;
	}
	return DefWindowProc(hWnd, message, wParam, lParam);
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
	HWND hWnd;
	MSG msg;
	WNDCLASSEX wc;

	ZeroMemory(&wc, sizeof(WNDCLASSEX));

	wc.cbSize = sizeof(WNDCLASSEX);
	//wc.hbrBackground = (HBRUSH)COLOR_WINDOW;
	wc.hCursor = LoadCursor(NULL, IDC_ARROW);
	wc.hInstance = hInstance;
	wc.lpfnWndProc = (WNDPROC)WndProc;
	wc.lpszClassName = L"WindowClass1";
	wc.style = CS_HREDRAW | CS_VREDRAW;

	RegisterClassEx(&wc);

	hWnd = CreateWindowEx(
		NULL,
		L"WindowClass1",
		WINDOW_TITLE,
		WS_EX_TOPMOST | WS_POPUP,
		0, 0,
		SCREEN_WIDTH,
		SCREEN_HEIGHT,
		NULL,
		NULL,
		hInstance,
		NULL);

	ShowWindow(hWnd, nCmdShow);

	InitD3D(hWnd);

	while(true)
	{
		if(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
		{
			if(msg.message == WM_QUIT)
				break;

			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}

		RenderFrame();
	}

	CleanD3D();

	return msg.wParam;
}

void InitD3D(HWND hWnd)
{
	d3d = Direct3DCreate9(D3D_SDK_VERSION);

	D3DPRESENT_PARAMETERS d3dpp;

	ZeroMemory(&d3dpp, sizeof(D3DPRESENT_PARAMETERS));
	d3dpp.Windowed = false;
	d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
	d3dpp.hDeviceWindow = hWnd;
	d3dpp.BackBufferFormat = D3DFMT_X8R8G8B8;
	d3dpp.BackBufferWidth = SCREEN_WIDTH;
	d3dpp.BackBufferHeight = SCREEN_HEIGHT;

	d3d->CreateDevice(
		D3DADAPTER_DEFAULT,
		D3DDEVTYPE_HAL,
		hWnd,
		D3DCREATE_SOFTWARE_VERTEXPROCESSING,
		&d3dpp,
		&d3ddev);
}

void RenderFrame()
{
	d3ddev->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0, 40, 100), 1.0f, 0);

	d3ddev->BeginScene();

	d3ddev->EndScene();

	d3ddev->Present(NULL, NULL, NULL, NULL);
}

void CleanD3D()
{
	d3ddev->Release();
	d3d->Release();
}