Mine

#include <windows.h>#include <d3d9.h>const int SCREEN_WIDTH = 800;const int SCREEN_HEIGHT = 600;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_OVERLAPPEDWINDOW,		300, 300,		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 = true;	d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;	d3dpp.hDeviceWindow = hWnd;	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();}