#include <windows.h>#include <d3dx9.h>#include <d3d9.h>#include "main.h"#pragma comment(lib, "D3d9.lib")#pragma comment(lib, "D3dx9.lib")HDC						hDC				= NULL;		    // Private GDI Device ContextHWND					hWnd			= NULL;		    // Holds Our Window HandleHINSTANCE				hInstance;					    // Holds The Instance Of The ApplicationLPDIRECT3D9				pD3D			= NULL;		    // DirectX 3D Version 9LPDIRECT3DDEVICE9		pD3DDevice		= NULL;		    // DirectX 3D Rendering Devicebool	keys[256];			                            // Array Used For The Keyboard Routinebool	active=TRUE;		                            // Window Active Flag Set To TRUE By Defaultbool	fullscreen=TRUE;	                            // Fullscreen Flag Set To Fullscreen Mode By DefaultLRESULT	CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);	// Declaration For WndProcvoid ReSizeD3DScene(int width, int height)				// Resize And Initialize The D3D Window{	if (height==0)										// Prevent A Divide By Zero By	{		height=1;										// Making Height Equal One	}	D3DXMATRIXA16 matProjection;						// Create A Projection Matrix	// Calculate The Aspect Ratio Of The Window	D3DXMatrixPerspectiveFovLH(&matProjection, 45.0f, (float)width/(float)height, 0.1f, 100.0f );	pD3DDevice->SetTransform( D3DTS_PROJECTION, &matProjection );	D3DXMatrixIdentity(&matProjection);					// Reset The Projection Matrix}int InitD3D()										   // All Setup For D3D Goes Here{	pD3DDevice->SetRenderState(D3DRS_ZENABLE,  TRUE ); // Enable Z-Buffer (Depth Buffer)    pD3DDevice->SetRenderState(D3DRS_CULLMODE, FALSE); // Disable Backface Culling    pD3DDevice->SetRenderState(D3DRS_LIGHTING, FALSE); // Disable Light	return TRUE;									   // Initialization Went OK}int DrawD3DScene()									    // Here's Where We Do All The Drawing{    pD3DDevice->Clear( 0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, // Clear Screen And Depth Buffer								D3DCOLOR_COLORVALUE(0.0f,0.0f,0.0f,0.0f), 1.0f, 0 );	pD3DDevice->BeginScene();	// Nothing To draw!!!	pD3DDevice->EndScene();	pD3DDevice->Present( NULL, NULL, NULL, NULL );		// Display Result	return TRUE;										// Keep Going}void KillD3DWindow()									// Properly Kill The Window{    if (pD3DDevice != NULL)	pD3DDevice->Release();		// Release D3D Device	if (pD3D != NULL) pD3D->Release();					// Release D3D Interface	if (fullscreen)										// Are We In Fullscreen Mode?	{		ChangeDisplaySettings(NULL,0);					// If So Switch Back To The Desktop		ShowCursor(TRUE);								// Show Mouse Pointer	}	if (hDC && !ReleaseDC(hWnd,hDC))					// Are We Able To Release The DC	{		MessageBox(NULL,"Release Device Context Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);		hDC=NULL;										// Set DC To NULL	}	if (hWnd && !DestroyWindow(hWnd))					// Are We Able To Destroy The Window?	{		MessageBox(NULL,"Could Not Release hWnd.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);		hWnd=NULL;										// Set hWnd To NULL	}	if (!UnregisterClass("Direct3D",hInstance))			// Are We Able To Unregister Class	{		MessageBox(NULL,"Could Not Unregister Class.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);		hInstance=NULL;									// Set hInstance To NULL	}}/*	This Code Creates Our DirectX 3D Window.  Parameters Are:				* *	title			- Title To Appear At The Top Of The Window				* *	width			- Width Of The D3D Window Or Fullscreen Mode			* *	height			- Height Of The D3D Window Or Fullscreen Mode			* *	fullscreenflag	- Use Fullscreen Mode (TRUE) Or Windowed Mode (FALSE)	*/BOOL CreateD3DWindow(char* title, int width, int height, bool fullscreenflag){	WNDCLASS	wc;	DWORD		dwExstyle;				// Window Extended style	DWORD		dwstyle;				// Window style	RECT		WindowRect;				// Grabs Rectangle Upper Left / Lower Right Values	WindowRect.left=(long)0;			// Set Left Value To 0	WindowRect.right=(long)width;		// Set Right Value To Requested Width	WindowRect.top=(long)0;				// Set Top Value To 0	WindowRect.bottom=(long)height;		// Set Bottom Value To Requested Height	fullscreen=fullscreenflag;			// Set The Global Fullscreen Flag	hInstance			= GetModuleHandle(NULL);				// Grab An Instance For Our Window	wc.style			= CS_HREDRAW | CS_VREDRAW | CS_OWNDC;	// Redraw On Size, And Own DC For Window.	wc.lpfnWndProc		= (WNDPROC) WndProc;					// WndProc Handles Messages	wc.cbClsExtra		= 0;									// No Extra Window Data	wc.cbWndExtra		= 0;									// No Extra Window Data	wc.hInstance		= hInstance;							// Set The Instance	wc.hIcon			= LoadIcon(NULL, IDI_WINLOGO);			// Load The Default Icon	wc.hCursor			= LoadCursor(NULL, IDC_ARROW);			// Load The Arrow Pointer	wc.hbrBackground	= NULL;									// No Background Required For D3D	wc.lpszMenuName		= NULL;									// We Don't Want A Menu	wc.lpszClassName	= "Direct3D";							// Set The Class Name	if (!RegisterClass(&wc))									// Attempt To Register The Window Class	{		MessageBox(NULL,"Failed To Register The Window Class.","ERROR",MB_OK|MB_ICONEXCLAMATION);		return FALSE;											// Return FALSE	}	if (fullscreen)												// Fullscreen Mode?	{		dwExstyle=WS_EX_APPWINDOW;								// Window Extended style		dwstyle=WS_POPUP;										// Windows style		ShowCursor(FALSE);										// Hide Mouse Pointer	}	else	{		dwExstyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;			// Window Extended style		dwstyle=WS_OVERLAPPEDWINDOW;							// Windows style	}	AdjustWindowRectEx(&WindowRect, dwstyle, FALSE, dwExstyle);	// Adjust Window To True Requested Size	// Create The Window	if (!(hWnd=CreateWindowEx(	dwExstyle,							// Extended style For The Window								"Direct3D",							// Class Name								title,								// Window Title								dwstyle |							// Defined Window style								WS_CLIPSIBLINGS |					// Required Window style								WS_CLIPCHILDREN,					// Required Window style								0, 0,								// Window Position								WindowRect.right-WindowRect.left,	// Calculate Window Width								WindowRect.bottom-WindowRect.top,	// Calculate Window Height								NULL,								// No Parent Window								NULL,								// No Menu								hInstance,							// Instance								NULL)))								// Dont Pass Anything To WM_CREATE	{		KillD3DWindow();							// Reset The Display		MessageBox(NULL,"Window Creation Error.","ERROR",MB_OK|MB_ICONEXCLAMATION);		return FALSE;								// Return FALSE	}	if (!(hDC=GetDC(hWnd)))							// Did We Get A Device Context?	{		KillD3DWindow();								// Reset The Display		MessageBox(NULL,"Can't Create A Device Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);		return FALSE;								// Return FALSE	}	pD3D = Direct3DCreate9( D3D_SDK_VERSION );		// Check For The Correct DirectX 3D version	if ( pD3D == NULL )	{		KillD3DWindow();							// Reset The Display		MessageBox(NULL,"Can't find D3D SDK Version 9.","ERROR",MB_OK|MB_ICONEXCLAMATION);		return FALSE;								// Return FALSE	}	D3DPRESENT_PARAMETERS d3dpp=					// d3dpp Tells Windows How We Want Things To Be	{		width,										// Back Buffer Width		height,										// Back Buffer Height		D3DFMT_R5G6B5,								// Back Buffer Format (Color Depth)		1,											// Back Buffer Count (Double Buffer)		D3DMULTISAMPLE_NONE,						// No Multi Sample Type		0,											// No Multi Sample Quality		D3DSWAPEFFECT_DISCARD,						// Swap Effect (Fast)		hWnd,										// The Window Handle		!fullscreen,								// Windowed or Fullscreen		TRUE,										// Enable Auto Depth Stencil  		D3DFMT_D16,									// 16Bit Z-Buffer (Depth Buffer)		0,											// No Flags		D3DPRESENT_RATE_DEFAULT,					// Default Refresh Rate		D3DPRESENT_INTERVAL_DEFAULT					// Default Presentation Interval (vertical sync)	};	// Check The Wanted Surface Format.	if ( FAILED( pD3D->CheckDeviceFormat( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,									      d3dpp.BackBufferFormat, D3DUSAGE_DEPTHSTENCIL,									      D3DRTYPE_SURFACE, d3dpp.AutoDepthStencilFormat ) ) )	{		KillD3DWindow();							// Reset The Display		MessageBox(NULL,"Can't Find Surface Format.","ERROR",MB_OK|MB_ICONEXCLAMATION);		return FALSE;								// Return FALSE	}	// Create The DirectX 3D Device 	if(FAILED( pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd,					 D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &pD3DDevice ) ) )	{		KillD3DWindow();							// Reset The Display		MessageBox(NULL,"Can't Create DirectX 3D Device.","ERROR",MB_OK|MB_ICONEXCLAMATION);		return FALSE;								// Return FALSE	}	ShowWindow(hWnd,SW_SHOW);						// Show The Window	SetForegroundWindow(hWnd);						// Slightly Higher Priority	SetFocus(hWnd);									// Sets Keyboard Focus To The Window	ReSizeD3DScene(width, height);					// Set Up Our Perspective D3D Screen	if (!InitD3D())									// Initialize Our Newly Created D3D Window	{		KillD3DWindow();							// Reset The Display		MessageBox(NULL,"Initialization Failed.","ERROR",MB_OK|MB_ICONEXCLAMATION);		return FALSE;								// Return FALSE	}	return TRUE;}LRESULT CALLBACK WndProc(	HWND	hWnd, 							UINT	uMsg, 							WPARAM	wParam, 							LPARAM	lParam ){    switch( uMsg )	{		case WM_ACTIVATE:							// Watch For Window Activate Message		{			if (!HIWORD(wParam))					// Check Minimization State			{				active=TRUE;						// Program Is Active			}			else			{				active=FALSE;						// Program Is No Longer Active			}			return 0;								// Return To The Message Loop		}		case WM_SYSCOMMAND:							// Intercept System Commands		{			switch (wParam)							// Check System Calls			{				case SC_SCREENSAVE:					// Screensaver Trying To Start?				case SC_MONITORPOWER:				// Monitor Trying To Enter Powersave?				return 0;							// Prevent From Happening			}			break;									// Exit		}		case WM_CLOSE:								// Did We Receive A Close Message?		{			PostQuitMessage(0);						// Send A Quit Message			return 0;								// Jump Back		}		case WM_KEYDOWN:							// Is A Key Being Held Down?		{			keys[wParam] = TRUE;					// If So, Mark It As TRUE			return 0;								// Jump Back		}		case WM_KEYUP:								// Has A Key Been Released?		{			keys[wParam] = FALSE;					// If So, Mark It As FALSE			return 0;								// Jump Back		}		case WM_SIZE:								// Resize The Direct3D Window		{			if(!fullscreen)				ReSizeD3DScene(LOWORD(lParam), HIWORD(lParam));  // LoWord=Width, HiWord=Height			return 0;								// Jump Back		}	}	// Pass All Unhandled Messages To DefWindowProc	return DefWindowProc(hWnd,uMsg,wParam,lParam);}int WINAPI WinMain( HINSTANCE	hInstance,                    HINSTANCE	hPrevInstance,                    LPSTR		lpCmdLine,                    int			nCmdShow ){	MSG     msg;	BOOL	done=FALSE;								// Bool Variable To Exit Loop	// Ask The User Which Screen Mode They Prefer	if (MessageBox(NULL,"Would You Like To Run In Fullscreen Mode?", "Start FullScreen?",MB_YESNO|MB_ICONQUESTION)==IDNO)	{		fullscreen=FALSE;							// Windowed Mode	}	// Create Our DirectX 3D Window	if (!CreateD3DWindow("Apron Tutorials Direct3D Framework",640,480,fullscreen))	{		return 0;									// Quit If Window Was Not Created	}	while(!done)									// Loop That Runs While done=FALSE	{		if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))	// Is There A Message Waiting?		{			if (msg.message==WM_QUIT)				// Have We Received A Quit Message?			{				done=TRUE;							// If So done=TRUE			}			else									// If Not, Deal With Window Messages			{				TranslateMessage(&msg);				// Translate The Message				DispatchMessage(&msg);				// Dispatch The Message			}		}		else										// If There Are No Messages		{			// Draw The Scene.  Watch For ESC Key And Quit Messages From DrawD3DScene()			if ((active && !DrawD3DScene()) || keys[VK_ESCAPE])	// Active?  Was There A Quit Received?			{				done=TRUE;							// ESC or DrawD3DScene Signalled A Quit			}			if (keys[VK_F1])						// Is F1 Being Pressed?			{				keys[VK_F1]=FALSE;					// If So Make Key FALSE				KillD3DWindow();					// Kill Our Current Window				fullscreen=!fullscreen;				// Toggle Fullscreen / Windowed Mode				// Recreate Our DirectX 3D Window				if (!CreateD3DWindow("Apron Tutorials Direct3D Framework",640,480,fullscreen))				{					return 0;						// Quit If Window Was Not Created				}			}		}	}	// Shutdown	KillD3DWindow();	return (msg.wParam);							// Exit The Program}