Program Cycle

UnregisterClass("ClassName", hInstance);return 0;

#define WIN32_LEAN_AND_MEAN				// trim the excess fat from Windows#include <windows.h>					// standard Windows app include#include <gl/gl.h>						// standard OpenGL include#include <gl/glu.h>						// OpenGL utilities#include <gl/glaux.h>					// OpenGL auxiliary functions#include "glfuncs.h"					// contains custom functionsHDC g_HDC;								// global device contextbool fullscreen = true;					// start off in windowed modeint width, height;						// window width and height// end of global variable declarations and preprocessor directives// function to prompt for fullscreenvoid FullScreenPrompt(bool *fscreen, LPCSTR bodytext, LPCSTR titlebartext){	/*			assign the messagebox function to an integer to be able to conduct different tests on it without having to		call the function each time a test should be conducted.	*/	int msgbox = MessageBox(NULL, bodytext, titlebartext, MB_YESNOCANCEL | MB_ICONQUESTION);		// if the user clicked yes in the messagebox	if (msgbox == IDYES)		*fscreen = true;	// run in fullscreen	// if the user clicked no in the messagebox	else if (msgbox == IDNO)		*fscreen = false;	// run in windowed mode	// if the user clicked cancel in the messagebox	else if (msgbox == IDCANCEL)		PostQuitMessage(0);	// exit the program}// funtion to set the pixel format for the device contextvoid SetupPixelFormat(HDC hDC){	int nPixelFormat;					// your pixel format index	static PIXELFORMATDESCRIPTOR pfd = {        sizeof(PIXELFORMATDESCRIPTOR),	// size of the structure		1,								// version, always set to 1		PFD_DRAW_TO_WINDOW |			// support window		PFD_SUPPORT_OPENGL |			// support OpenGL		PFD_DOUBLEBUFFER,				// support double buffering		PFD_TYPE_RGBA,					// RGBA color mode		32,								// go for 32 bit color mode		0, 0, 0, 0, 0, 0,				// ignore color bits, not used		0,								// no alpha buffer		0,								// ignore shift bit		0,								// no accumulation buffer		0, 0, 0, 0,						// ignore accumulation bits		16,								// 16-bit z-buffer size		0,								// no stencil buffer		0,								// no auxiliary buffer		PFD_MAIN_PLANE,					// main drawing plane		0,								// reserved		0, 0, 0 };						// layer masks ignored	// choose best matching pixel format, return index	nPixelFormat = ChoosePixelFormat(hDC, &pfd);	// set pixel format to device context	SetPixelFormat(hDC, nPixelFormat, &pfd);}void cycle(HDC ghdc){	// clear screen and depth buffer	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);	glLoadIdentity();			// reset modelview matrix	// Do Rendering here	// render functions, then...	SwapBuffers(ghdc);			// ...bring back buffer to foreground}// the Windows Procedure event handlerLRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam){	static HGLRC hRC;					// rendering context	static HDC hDC;						// device context						switch(message)	{		case WM_CREATE:					// window is being created			hDC = GetDC(hwnd);			// get current window's device context			g_HDC = hDC;							SetupPixelFormat(hDC);		// call your pixel format setup function			// create rendering context and make it current			hRC = wglCreateContext(hDC);			wglMakeCurrent(hDC, hRC);			return 0;			break;		case WM_CLOSE:					// windows is closing			// deselect rendering context and delete it			wglMakeCurrent(hDC, NULL);			wglDeleteContext(hRC);			// send WM_QUIT to message queue			PostQuitMessage(0);			return 0;			break;					case WM_DESTROY:						// deselect rendering context and delete it			wglMakeCurrent(hDC, NULL);			wglDeleteContext(hRC);			// send WM_QUIT to message queue			PostQuitMessage(0);			return 0;			break;		case WM_SIZE:						UpdateWindow(hwnd);			height = HIWORD(lParam);	// retrieve width and height			width =	LOWORD(lParam);			if (height == 0)			// don't want a divide by zero				height = 1;            // reset the viewport to new dimensions			glViewport(0, 0, width, height);			glMatrixMode(GL_PROJECTION);// set projection matrix			glLoadIdentity();			// reset projection matrix			// calculate aspect ratio of window			gluPerspective(45.0f, (GLfloat)width/(GLfloat)height,1.0f,1000.0f);			glMatrixMode(GL_MODELVIEW);	// set modelview matrix			glLoadIdentity();			// reset modelview matrix			return 0;			break;		case WM_CHAR:					switch (toupper(wParam))			{				case VK_ESCAPE:										// deselect rendering context and delete it					wglMakeCurrent(hDC, NULL);					wglDeleteContext(hRC);					// send WM_QUIT to message queue					PostQuitMessage(0);					return 0;			}			return 0;			break;		default:			break;	}	return (DefWindowProc(hwnd, message, wParam, lParam));}// the main Windows entry pointint WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd){	WNDCLASSEX windowClass;		// window class	HWND	   hwnd;			// window handle	MSG		   msg;				// message	RECT	   windowrect;	DWORD	   dwExStyle;		// window extended style	DWORD	   dwStyle;	int bits = 32;	FullScreenPrompt(&fullscreen, "Would you like to run in fullscreen mode?", "FULLSCREEN");	width = 800;	height = 600;	// fill out the window class structure	windowClass.cbSize			= sizeof(WNDCLASSEX);						// size of our structure	windowClass.style			= CS_HREDRAW | CS_VREDRAW;	windowClass.lpfnWndProc		= WndProc;									// name of your wndproc loop	windowClass.cbClsExtra		= 0;	windowClass.cbWndExtra		= 0;	windowClass.hInstance		= hInstance;	windowClass.hIcon			= LoadIcon(NULL, IDI_APPLICATION);			// default icon	windowClass.hCursor			= LoadCursor(NULL, IDC_ARROW);				// default arrow	windowClass.hbrBackground	= (HBRUSH)GetStockObject(BLACK_BRUSH);		// white background	windowClass.lpszMenuName	= NULL;										// no menu	windowClass.lpszClassName	= "ClassName";								// classname	windowClass.hIconSm			= LoadIcon(NULL, IDI_WINLOGO);				// windows logo small icon	// register the windows class	if (!RegisterClassEx(&windowClass))		return 0;	if (fullscreen)	{		DEVMODE dmScreenSettings;		memset(&dmScreenSettings, 0, sizeof(dmScreenSettings));		dmScreenSettings.dmSize			= sizeof(dmScreenSettings);		dmScreenSettings.dmPelsWidth	= width;				// screen width		dmScreenSettings.dmPelsHeight	= height;				// screen height		dmScreenSettings.dmBitsPerPel	= bits;					// bits per pixel		dmScreenSettings.dmFields		= DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;			if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)		{			// setting display mode failed, switch to windowed			MessageBox(NULL, "Switch to FullScreen Failed", NULL, MB_OK);			fullscreen = false;		}	}	if (fullscreen)				// are we still in full-screen mode?	{		dwExStyle = WS_EX_APPWINDOW;			// window extended style		dwStyle = WS_POPUP;						// windows style		ShowCursor(TRUE);						// show cursor	}	else if (!fullscreen)	{		dwExStyle = NULL;		// window extended style		dwStyle = WS_OVERLAPPEDWINDOW | WS_VISIBLE | WS_SYSMENU | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;			}	windowrect.top = (long)0;	windowrect.left = (long)0;	windowrect.bottom = (long)height;	windowrect.right = (long)width;	// readjust your window	AdjustWindowRectEx(&windowrect, dwStyle, FALSE, dwExStyle);	// class registered, so now create our window	hwnd = CreateWindowEx(NULL,								// extended style						  "ClassName",						// class name						  "Taskbar Text",					// app name						  dwStyle | WS_CLIPCHILDREN | WS_CLIPSIBLINGS,	// style						  0, 0,								// x,y coordinate						  windowrect.right - windowrect.left,// width						  windowrect.bottom - windowrect.top,// height						  NULL,								// handle to parent						  NULL,								// handle to menu						  hInstance,						// application instance						  NULL);							// no extra params	// check if window creation failed (hwnd would equal NULL)	if (!hwnd)		return 0;	ShowWindow(hwnd, SW_SHOW);			// display the window	UpdateWindow(hwnd);					// update the window	// main message loop	while (TRUE)	{		if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))		{			if (msg.message == WM_QUIT)				break;			TranslateMessage(&msg);			DispatchMessage(&msg);		}		else		{			cycle(g_HDC);		}	}	UnregisterClass("ClassName", hInstance);	return 0;}

#define WIN32_LEAN_AND_MEAN				// trim the excess fat from Windows#include <windows.h>					// standard Windows app include#include <gl/gl.h>						// standard OpenGL include#include <gl/glu.h>						// OpenGL utilities#include <gl/glaux.h>					// OpenGL auxiliary functions#include "glfuncs.h"					// contains custom functionsHDC g_HDC;								// global device contextint width, height;						// window width and height// end of global variable declarations and preprocessor directives// function to prompt for fullscreenbool FullScreenPrompt(LPCSTR bodytext, LPCSTR titlebartext, HWND blah){	/*			assign the messagebox function to an integer to be able to conduct different tests on it without having to		call the function each time a test should be conducted.	*/	int msgbox = MessageBox(NULL, bodytext, titlebartext, MB_YESNO | MB_ICONQUESTION);		// if the user clicked yes in the messagebox	if (msgbox == IDYES)		return true;	// run in fullscreen	// if the user clicked no in the messagebox	else if (msgbox == IDNO)		return false;	// run in windowed mode}// funtion to set the pixel format for the device contextvoid SetupPixelFormat(HDC hDC){	int nPixelFormat;					// your pixel format index	static PIXELFORMATDESCRIPTOR pfd = {        sizeof(PIXELFORMATDESCRIPTOR),	// size of the structure		1,								// version, always set to 1		PFD_DRAW_TO_WINDOW |			// support window		PFD_SUPPORT_OPENGL |			// support OpenGL		PFD_DOUBLEBUFFER,				// support double buffering		PFD_TYPE_RGBA,					// RGBA color mode		32,								// go for 32 bit color mode		0, 0, 0, 0, 0, 0,				// ignore color bits, not used		0,								// no alpha buffer		0,								// ignore shift bit		0,								// no accumulation buffer		0, 0, 0, 0,						// ignore accumulation bits		16,								// 16-bit z-buffer size		0,								// no stencil buffer		0,								// no auxiliary buffer		PFD_MAIN_PLANE,					// main drawing plane		0,								// reserved		0, 0, 0 };						// layer masks ignored	// choose best matching pixel format, return index	nPixelFormat = ChoosePixelFormat(hDC, &pfd);	// set pixel format to device context	SetPixelFormat(hDC, nPixelFormat, &pfd);}void cycle(HDC ghdc){	// clear screen and depth buffer	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);	glLoadIdentity();			// reset modelview matrix	// Do Rendering here	// render functions, then...	SwapBuffers(ghdc);			// ...bring back buffer to foreground}// the Windows Procedure event handlerLRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam){	static HGLRC hRC;					// rendering context	static HDC hDC;						// device context						switch(message)	{		case WM_CREATE:					// window is being created			hDC = GetDC(hwnd);			// get current window's device context			g_HDC = hDC;							SetupPixelFormat(hDC);		// call your pixel format setup function			// create rendering context and make it current			hRC = wglCreateContext(hDC);			wglMakeCurrent(hDC, hRC);			return 0;			break;		case WM_CLOSE:					// windows is closing			DestroyWindow(hwnd);			return 0;			break;					case WM_DESTROY:						// deselect rendering context and delete it			wglMakeCurrent(hDC, NULL);			wglDeleteContext(hRC);			// send WM_QUIT to message queue			PostQuitMessage(0);			return 0;			break;		case WM_SIZE:						UpdateWindow(hwnd);			height = HIWORD(lParam);	// retrieve width and height			width =	LOWORD(lParam);			if (height == 0)			// don't want a divide by zero				height = 1;            // reset the viewport to new dimensions			glViewport(0, 0, width, height);			glMatrixMode(GL_PROJECTION);// set projection matrix			glLoadIdentity();			// reset projection matrix			// calculate aspect ratio of window			gluPerspective(45.0f, (GLfloat)width/(GLfloat)height,1.0f,1000.0f);			glMatrixMode(GL_MODELVIEW);	// set modelview matrix			glLoadIdentity();			// reset modelview matrix			return 0;			break;		case WM_CHAR:					switch (toupper(wParam))			{				case VK_ESCAPE:										DestroyWindow(hwnd);					return 0;			}			return 0;			break;		default:			break;	}	return (DefWindowProc(hwnd, message, wParam, lParam));}// the main Windows entry pointint WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd){	WNDCLASSEX windowClass;		// window class	HWND	   hwnd;			// window handle	MSG		   msg;				// message	RECT	   windowrect;	DWORD	   dwExstyle;		// window extended style	DWORD	   dwstyle;	int bits = 32;	bool fullscreen;		if ((fullscreen = FullScreenPrompt("Would you like to run in fullscreen mode?", "FULLSCREEN", hwnd)) == NULL)		DestroyWindow(hwnd);	width = 800;	height = 600;	// fill out the window class structure	windowClass.cbSize			= sizeof(WNDCLASSEX);						// size of our structure	windowClass.style			= CS_HREDRAW | CS_VREDRAW;	windowClass.lpfnWndProc		= WndProc;									// name of your wndproc loop	windowClass.cbClsExtra		= 0;	windowClass.cbWndExtra		= 0;	windowClass.hInstance		= hInstance;	windowClass.hIcon			= LoadIcon(NULL, IDI_APPLICATION);			// default icon	windowClass.hCursor			= LoadCursor(NULL, IDC_ARROW);				// default arrow	windowClass.hbrBackground	= (HBRUSH)GetStockObject(BLACK_BRUSH);		// white background	windowClass.lpszMenuName	= NULL;										// no menu	windowClass.lpszClassName	= "ClassName";								// classname	windowClass.hIconSm			= LoadIcon(NULL, IDI_WINLOGO);				// windows logo small icon	// register the windows class	if (!RegisterClassEx(&windowClass))		return 0;	if (fullscreen)	{		DEVMODE dmScreenSettings;		memset(&dmScreenSettings, 0, sizeof(dmScreenSettings));		dmScreenSettings.dmSize			= sizeof(dmScreenSettings);		dmScreenSettings.dmPelsWidth	= width;				// screen width		dmScreenSettings.dmPelsHeight	= height;				// screen height		dmScreenSettings.dmBitsPerPel	= bits;					// bits per pixel		dmScreenSettings.dmFields		= DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;			if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)		{			// setting display mode failed, switch to windowed			MessageBox(NULL, "Switch to FullScreen Failed", NULL, MB_OK);			fullscreen = false;		}	}	if (fullscreen)				// are we still in full-screen mode?	{		dwExstyle = WS_EX_APPWINDOW;			// window extended style		dwstyle = WS_POPUP;						// windows style		ShowCursor(TRUE);						// show cursor	}	else if (!fullscreen)	{		dwExstyle = NULL;		// window extended style		dwstyle = WS_OVERLAPPEDWINDOW | WS_VISIBLE | WS_SYSMENU | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;			}	windowrect.top = (long)0;	windowrect.left = (long)0;	windowrect.bottom = (long)height;	windowrect.right = (long)width;	// readjust your window	AdjustWindowRectEx(&windowrect, dwstyle, FALSE, dwExstyle);	// class registered, so now create our window	hwnd = CreateWindowEx(NULL,								// extended style						  "ClassName",						// class name						  "Taskbar Text",					// app name						  dwstyle | WS_CLIPCHILDREN | WS_CLIPSIBLINGS,	// style						  0, 0,								// x,y coordinate						  windowrect.right - windowrect.left,// width						  windowrect.bottom - windowrect.top,// height						  NULL,								// handle to parent						  NULL,								// handle to menu						  hInstance,						// application instance						  NULL);							// no extra params	// check if window creation failed (hwnd would equal NULL)	if (!hwnd)		return 0;	ShowWindow(hwnd, SW_SHOW);			// display the window	UpdateWindow(hwnd);					// update the window	// main message loop	while (TRUE)	{		if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))		{			if (msg.message == WM_QUIT)				break;			TranslateMessage(&msg);			DispatchMessage(&msg);		}		else		{			cycle(g_HDC);		}	}	UnregisterClass("ClassName", hInstance);	return 0;}