Hỏi THư VIện OpenIL

[nvtuantt]

cái này nó nói rõ ra là không tìm thấy file dll. Bạn xem lại thử trong thư mục của bạn có file ilut.dll chưa?

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[ngochoa]

Xem Lesson bạn gửi thì đúng là không có ilut.dll, do vậy báo lỗi trên là đúng thôi!

[seodienlanh]

thư viện đó ở đâu vậy bạn,OpenGL làm gì có thư viện này,mình thấy bài viết nó giới thiệu thư viện OpenIL chả biết là gì =))

sau khi copy các lib và DLL vào chạy thử thì bị chết chương trình chỗ hàm

if (ilLoadImage("Crate.oil"))					// Attempt To Load The Image
	{
		Status = TRUE;									// Set Status To TRUE

/* *        This Code Was Created By Christopher Aliotta & Jeff Molofee 2000 *        A HUGE Thanks To Fredric Echols For Cleaning Up And Optimizing *        The Base Code, Making It More Flexible!  If You've Found This Code *        Useful, Please Let Me Know.  Visit My Site At nehe.gamedev.net *        Converted to use OpenIL by Denton Woods (2001). */#include <windows.h>        // Header File For Windows#include <stdio.h>            // Header File For Standard Input/Output#include <gl\gl.h>            // Header File For The OpenGL32 Library#include <gl\glu.h>            // Header File For The GLu32 Library#include <il\ilut.h>        // Header File For The OpenIL LibraryHDC            hDC=NULL;        // Private GDI Device ContextHGLRC        hRC=NULL;        // Permanent Rendering ContextHWND        hWnd=NULL;        // Holds Our Window HandleHINSTANCE    hInstance;        // Holds The Instance Of The Applicationbool    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 Defaultbool    light;                // Lighting ON/OFFbool    lp;                    // L Pressed?bool    fp;                    // F Pressed?bool    gp;                    // G Pressed? ( NEW )GLfloat    xrot;                // X RotationGLfloat    yrot;                // Y RotationGLfloat xspeed;                // X Rotation SpeedGLfloat yspeed;                // Y Rotation SpeedGLfloat    z=-5.0f;            // Depth Into The ScreenGLfloat LightAmbient[]=        { 0.5f, 0.5f, 0.5f, 1.0f };GLfloat LightDiffuse[]=        { 1.0f, 1.0f, 1.0f, 1.0f };GLfloat LightPosition[]=    { 0.0f, 0.0f, 2.0f, 1.0f };GLuint    filter;                // Which Filter To UseGLuint    texture[3];            // Storage For 3 TexturesGLuint    fogMode[]= { GL_EXP, GL_EXP2, GL_LINEAR };    // Storage For Three Types Of FogGLuint    fogfilter = 0;                                // Which Fog Mode To Use GLfloat    fogColor[4] = {0.5f,0.5f,0.5f,1.0f};        // Fog ColorLRESULT    CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);    // Declaration For WndProcint LoadGLTextures()                                    // Load Bitmaps And Convert To Textures{    int        Status = FALSE;                                // Status Indicator    ILuint    ImgId;    ilGenImages(1, &ImgId);                                // Create One Image    ilBindImage(ImgId);                                    // Bind The Image    // Load The Bitmap And Check For Errors.  If Bitmap's Not Found, Quit.    if (ilLoadImage("Crate.oil"))                    // Attempt To Load The Image    {        Status = TRUE;                                    // Set Status To TRUE        ilConvertImage(IL_BGR, IL_UNSIGNED_BYTE);        // Convert To An "Easy" Format/Type        glGenTextures(3, texture);                        // Create Three Textures        // Create Nearest Filtered Texture        glBindTexture(GL_TEXTURE_2D, texture[0]);        glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);        glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);        ilutGLTexImage(0);                                // Send To OpenGL As A Texture        // Create Linear Filtered Texture        glBindTexture(GL_TEXTURE_2D, texture[1]);        glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);        glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);        ilutGLTexImage(0);                                // Send To OpenGL As A Texture        // Create MipMapped Texture        glBindTexture(GL_TEXTURE_2D, texture[2]);        glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);        glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_NEAREST);        ilutGLBuildMipmaps();                            // Send To OpenGL As Mipmaps    }    ilDeleteImages(1, &ImgId);                            // Delete The Image    return Status;                                        // Return The Status}GLvoid ReSizeGLScene(GLsizei width, GLsizei height)        // Resize And Initialize The GL Window{    if (height==0)                                        // Prevent A Divide By Zero By    {        height=1;                                        // Making Height Equal One    }    glViewport(0,0,width,height);                        // Reset The Current Viewport    glMatrixMode(GL_PROJECTION);                        // Select The Projection Matrix    glLoadIdentity();                                    // Reset The Projection Matrix    // Calculate The Aspect Ratio Of The Window    gluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,100.0f);    glMatrixMode(GL_MODELVIEW);                            // Select The Modelview Matrix    glLoadIdentity();                                    // Reset The Modelview Matrix}int InitGL(GLvoid)                                        // All Setup For OpenGL Goes Here{    if (!LoadGLTextures())                                // Jump To Texture Loading Routine    {        return FALSE;                                    // If Texture Didn't Load Return FALSE    }    glEnable(GL_TEXTURE_2D);                            // Enable Texture Mapping    glShadeModel(GL_SMOOTH);                            // Enable Smooth Shading    glClearColor(0.5f,0.5f,0.5f,1.0f);                    // We'll Clear To The Color Of The Fog    glClearDepth(1.0f);                                    // Depth Buffer Setup    glEnable(GL_DEPTH_TEST);                            // Enables Depth Testing    glDepthFunc(GL_LEQUAL);                                // The Type Of Depth Testing To Do    glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);    // Really Nice Perspective Calculations    glLightfv(GL_LIGHT1, GL_AMBIENT, LightAmbient);        // Setup The Ambient Light    glLightfv(GL_LIGHT1, GL_DIFFUSE, LightDiffuse);        // Setup The Diffuse Light    glLightfv(GL_LIGHT1, GL_POSITION,LightPosition);    // Position The Light    glEnable(GL_LIGHT1);                                // Enable Light One    glFogi(GL_FOG_MODE, fogMode[fogfilter]);            // Fog Mode    glFogfv(GL_FOG_COLOR, fogColor);                    // Set Fog Color    glFogf(GL_FOG_DENSITY, 0.35f);                        // How Dense Will The Fog Be    glHint(GL_FOG_HINT, GL_DONT_CARE);                    // Fog Hint Value    glFogf(GL_FOG_START, 1.0f);                            // Fog Start Depth    glFogf(GL_FOG_END, 5.0f);                            // Fog End Depth    glEnable(GL_FOG);                                    // Enables GL_FOG    return TRUE;                                        // Initialization Went OK}int DrawGLScene(GLvoid)                                    // Here's Where We Do All The Drawing{    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);    // Clear The Screen And The Depth Buffer    glLoadIdentity();                                    // Reset The View    glTranslatef(0.0f,0.0f,z);    glRotatef(xrot,1.0f,0.0f,0.0f);    glRotatef(yrot,0.0f,1.0f,0.0f);    glBindTexture(GL_TEXTURE_2D, texture[filter]);    glBegin(GL_QUADS);        // Front Face        glNormal3f( 0.0f, 0.0f, 1.0f);        glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);        glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);        glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);        glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);        // Back Face        glNormal3f( 0.0f, 0.0f,-1.0f);        glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);        glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);        glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);        glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);        // Top Face        glNormal3f( 0.0f, 1.0f, 0.0f);        glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);        glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f,  1.0f,  1.0f);        glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f,  1.0f,  1.0f);        glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);        // Bottom Face        glNormal3f( 0.0f,-1.0f, 0.0f);        glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);        glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);        glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);        glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);        // Right face        glNormal3f( 1.0f, 0.0f, 0.0f);        glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);        glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);        glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);        glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);        // Left Face        glNormal3f(-1.0f, 0.0f, 0.0f);        glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);        glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);        glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);        glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);    glEnd();    xrot+=xspeed;    yrot+=yspeed;    return TRUE;                                        // Keep Going}GLvoid KillGLWindow(GLvoid)                                // Properly Kill The Window{    if (fullscreen)                                        // Are We In Fullscreen Mode?    {        ChangeDisplaySettings(NULL,0);                    // If So Switch Back To The Desktop        ShowCursor(TRUE);                                // Show Mouse Pointer    }    if (hRC)                                            // Do We Have A Rendering Context?    {        if (!wglMakeCurrent(NULL,NULL))                    // Are We Able To Release The DC And RC Contexts?        {            MessageBox(NULL,"Release Of DC And RC Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);        }        if (!wglDeleteContext(hRC))                        // Are We Able To Delete The RC?        {            MessageBox(NULL,"Release Rendering Context Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);        }        hRC=NULL;                                        // Set RC To NULL    }    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("OpenGL",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 OpenGL Window.  Parameters Are:                    * *    title            - Title To Appear At The Top Of The Window                * *    width            - Width Of The GL Window Or Fullscreen Mode                * *    height            - Height Of The GL Window Or Fullscreen Mode            * *    bits            - Number Of Bits To Use For Color (8/16/24/32)            * *    fullscreenflag    - Use Fullscreen Mode (TRUE) Or Windowed Mode (FALSE)    */ BOOL CreateGLWindow(char* title, int width, int height, int bits, bool fullscreenflag){    GLuint        PixelFormat;            // Holds The Results After Searching For A Match    WNDCLASS    wc;                        // Windows Class Structure    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 GL    wc.lpszMenuName        = NULL;                                    // We Don't Want A Menu    wc.lpszClassName    = "OpenGL";                                // 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)                                                // Attempt Fullscreen Mode?    {        DEVMODE dmScreenSettings;                                // Device Mode        memset(&dmScreenSettings,0,sizeof(dmScreenSettings));    // Makes Sure Memory's Cleared        dmScreenSettings.dmSize=sizeof(dmScreenSettings);        // Size Of The Devmode Structure        dmScreenSettings.dmPelsWidth    = width;                // Selected Screen Width        dmScreenSettings.dmPelsHeight    = height;                // Selected Screen Height        dmScreenSettings.dmBitsPerPel    = bits;                    // Selected Bits Per Pixel        dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;        // Try To Set Selected Mode And Get Results.  NOTE: CDS_FULLSCREEN Gets Rid Of Start Bar.        if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL)        {            // If The Mode Fails, Offer Two Options.  Quit Or Use Windowed Mode.            if (MessageBox(NULL,"The Requested Fullscreen Mode Is Not Supported By
Your Video Card. Use Windowed Mode Instead?","NeHe GL",MB_YESNO|MB_ICONEXCLAMATION)==IDYES)            {                fullscreen=FALSE;        // Windowed Mode Selected.  Fullscreen = FALSE            }            else            {                // Pop Up A Message Box Letting User Know The Program Is Closing.                MessageBox(NULL,"Program Will Now Close.","ERROR",MB_OK|MB_ICONSTOP);                return FALSE;                                    // Return FALSE            }        }    }    if (fullscreen)                                                // Are We Still In 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                                "OpenGL",                            // 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    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Window Creation Error.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                // Return FALSE    }    static    PIXELFORMATDESCRIPTOR pfd=                // pfd Tells Windows How We Want Things To Be    {        sizeof(PIXELFORMATDESCRIPTOR),                // Size Of This Pixel Format Descriptor        1,                                            // Version Number        PFD_DRAW_TO_WINDOW |                        // Format Must Support Window        PFD_SUPPORT_OPENGL |                        // Format Must Support OpenGL        PFD_DOUBLEBUFFER,                            // Must Support Double Buffering        PFD_TYPE_RGBA,                                // Request An RGBA Format        bits,                                        // Select Our Color Depth        0, 0, 0, 0, 0, 0,                            // Color Bits Ignored        0,                                            // No Alpha Buffer        0,                                            // Shift Bit Ignored        0,                                            // No Accumulation Buffer        0, 0, 0, 0,                                    // Accumulation Bits Ignored        16,                                            // 16Bit Z-Buffer (Depth Buffer)          0,                                            // No Stencil Buffer        0,                                            // No Auxiliary Buffer        PFD_MAIN_PLANE,                                // Main Drawing Layer        0,                                            // Reserved        0, 0, 0                                        // Layer Masks Ignored    };        if (!(hDC=GetDC(hWnd)))                            // Did We Get A Device Context?    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Can't Create A GL Device Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                // Return FALSE    }    if (!(PixelFormat=ChoosePixelFormat(hDC,&pfd)))    // Did Windows Find A Matching Pixel Format?    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Can't Find A Suitable PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                // Return FALSE    }    if(!SetPixelFormat(hDC,PixelFormat,&pfd))        // Are We Able To Set The Pixel Format?    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Can't Set The PixelFormat.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                // Return FALSE    }    if (!(hRC=wglCreateContext(hDC)))                // Are We Able To Get A Rendering Context?    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Can't Create A GL Rendering Context.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                // Return FALSE    }    if(!wglMakeCurrent(hDC,hRC))                    // Try To Activate The Rendering Context    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Can't Activate The GL Rendering Context.","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    ReSizeGLScene(width, height);                    // Set Up Our Perspective GL Screen    if (!InitGL())                                    // Initialize Our Newly Created GL Window    {        KillGLWindow();                                // Reset The Display        MessageBox(NULL,"Initialization Failed.","ERROR",MB_OK|MB_ICONEXCLAMATION);        return FALSE;                                // Return FALSE    }    return TRUE;                                    // Success}LRESULT CALLBACK WndProc(    HWND    hWnd,            // Handle For This Window                            UINT    uMsg,            // Message For This Window                            WPARAM    wParam,            // Additional Message Information                            LPARAM    lParam)            // Additional Message Information{    switch (uMsg)                                    // Check For Windows Messages    {        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 OpenGL Window        {            ReSizeGLScene(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,            // Instance                    HINSTANCE    hPrevInstance,        // Previous Instance                    LPSTR        lpCmdLine,            // Command Line Parameters                    int            nCmdShow)            // Window Show State{    MSG        msg;                                    // Windows Message Structure    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 OpenGL Window    if (!CreateGLWindow("Chris Aliotta & NeHe's Fog Tutorial",640,480,16,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 DrawGLScene()            if ((active && !DrawGLScene()) || keys[VK_ESCAPE])    // Active?  Was There A Quit Received?            {                done=TRUE;                            // ESC or DrawGLScene Signalled A Quit            }            else                                    // Not Time To Quit, Update Screen            {                SwapBuffers(hDC);                    // Swap Buffers (Double Buffering)                if (keys['L'] && !lp)                {                    lp=TRUE;                    light=!light;                    if (!light)                    {                        glDisable(GL_LIGHTING);                    }                    else                    {                        glEnable(GL_LIGHTING);                    }                }                if (!keys['L'])                {                    lp=FALSE;                }                if (keys['F'] && !fp)                {                    fp=TRUE;                    filter+=1;                    if (filter>2)                    {                        filter=0;                    }                }                if (!keys['F'])                {                    fp=FALSE;                }                if (keys[VK_PRIOR])                {                    z-=0.02f;                }                if (keys[VK_NEXT])                {                    z+=0.02f;                }                if (keys[VK_UP])                {                    xspeed-=0.01f;                }                if (keys[VK_DOWN])                {                    xspeed+=0.01f;                }                if (keys[VK_RIGHT])                {                    yspeed+=0.01f;                }                if (keys[VK_LEFT])                {                    yspeed-=0.01f;                }                if (keys['G'] && !gp)                {                    gp=TRUE;                    fogfilter+=1;                    if (fogfilter>2)                    {                        fogfilter=0;                    }                    glFogi (GL_FOG_MODE, fogMode[fogfilter]);    // Fog Mode                }                if (!keys['G'])                {                    gp=FALSE;                }                if (keys[VK_F1])                        // Is F1 Being Pressed?                {                    keys[VK_F1]=FALSE;                    // If So Make Key FALSE                    KillGLWindow();                        // Kill Our Current Window                    fullscreen=!fullscreen;                // Toggle Fullscreen / Windowed Mode                    // Recreate Our OpenGL Window                    if (!CreateGLWindow("Chris Aliotta & NeHe's Fog Tutorial",640,480,16,fullscreen))                    {                        return 0;                        // Quit If Window Was Not Created                    }                }            }        }    }    // Shutdown    KillGLWindow();                                    // Kill The Window    return (msg.wParam);                            // Exit The Program}  

[doikonhulamo]

Tớ có chạy 1 đoạn code mà không hiểu sao l0z thế này