OpenGl and Windows

Graphics and GPU Programming Programming OpenGL

Started by apprentice123 May 14, 2011 09:33 PM

0 comments, last by Zakwayda 12 years, 11 months ago

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Author

May 14, 2011 09:33 PM

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[font="arial, sans-serif"]CGfxOpenGL.h[/font]
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[size=2]#ifndef __GL_COMPONENT

[size=2]#define __GL_COMPONENT

[size=2]



[size=2]#define PI 3.14159

[size=2]#define TWO_PI PI*2.0

[size=2]#define HALF_PI PI/2.0

[size=2]



[size=2]class CGfxOpenGL

[size=2]{

[size=2]private:

[size=2]	int m_windowWidth;

[size=2]	int m_windowHeight;

[size=2]



[size=2]	float m_angle;

[size=2]



[size=2]public:

[size=2]	CGfxOpenGL();

[size=2]	virtual ~CGfxOpenGL();

[size=2]



[size=2]	bool Init();

[size=2]	bool Shutdown();

[size=2]



[size=2]	void SetupProjection(int width, int height);

[size=2]



[size=2]	void Prepare(float dt);

[size=2]	void Render();

[size=2]};

[size=2]

[size=2]#endif

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[/font]
[font=arial, sans-serif][size=2]CGfxOpenGL.cpp[/font]
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[font="arial, sans-serif"][size=2]#ifdef _WINDOWS[/font]

[font="arial, sans-serif"][size=2]#include <windows.h>[/font]

[font="arial, sans-serif"][size=2]#endif[/font]

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[/font]

[font="arial, sans-serif"][size=2]#include <gl/gl.h>[/font]

[font="arial, sans-serif"][size=2]#include <gl/glu.h>[/font]

[font="arial, sans-serif"][size=2]#include <math.h>[/font]

[font="arial, sans-serif"][size=2]#include "CGfxOpenGL.h"[/font]

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[/font]

[font="arial, sans-serif"][size=2]// disable implicit float-double casting[/font]

[font="arial, sans-serif"][size=2]#pragma warning(disable:4305)[/font]

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[/font]

[font="arial, sans-serif"][size=2]CGfxOpenGL::CGfxOpenGL()[/font]

[font="arial, sans-serif"][size=2]{[/font]

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[/font]

[font="arial, sans-serif"][size=2]CGfxOpenGL::~CGfxOpenGL()[/font]

[font="arial, sans-serif"][size=2]{[/font]

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[/font]

[font="arial, sans-serif"][size=2]bool CGfxOpenGL::Init()[/font]

[font="arial, sans-serif"][size=2]{   [/font]

[font="arial, sans-serif"][size=2]    // clear to black background[/font]

[font="arial, sans-serif"][size=2]    glClearColor(0.0, 0.0, 0.0, 0.0);[/font]

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[/font]

[font="arial, sans-serif"][size=2]    m_angle = 0.0f;[/font]

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[/font]

[font="arial, sans-serif"][size=2]    return true;[/font]

[font="arial, sans-serif"][size=2]}[/font]

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[/font]

[font="arial, sans-serif"][size=2]bool CGfxOpenGL::Shutdown()[/font]

[font="arial, sans-serif"][size=2]{[/font]

[font="arial, sans-serif"][size=2]    return true;[/font]

[font="arial, sans-serif"][size=2]}[/font]

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[/font]

[font="arial, sans-serif"][size=2]void CGfxOpenGL::SetupProjection(int width, int height)[/font]

[font="arial, sans-serif"][size=2]{[/font]

[font="arial, sans-serif"][size=2]    if (height == 0)                    // don't want a divide by zero[/font]

[font="arial, sans-serif"][size=2]    {[/font]

[font="arial, sans-serif"][size=2]        height = 1;                 [/font]

[font="arial, sans-serif"][size=2]    }[/font]

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[/font]

[font="arial, sans-serif"][size=2]    glViewport(0, 0, width, height);        // reset the viewport to new dimensions[/font]

[font="arial, sans-serif"][size=2]    glMatrixMode(GL_PROJECTION);            // set projection matrix current matrix[/font]

[font="arial, sans-serif"][size=2]    glLoadIdentity();                       // reset projection matrix[/font]

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[/font]

[font="arial, sans-serif"][size=2]    // calculate aspect ratio of window[/font]

[font="arial, sans-serif"][size=2]    gluPerspective(52.0f,(GLfloat)width/(GLfloat)height,1.0f,1000.0f);[/font]

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[/font]

[font="arial, sans-serif"][size=2]    glMatrixMode(GL_MODELVIEW);             // set modelview matrix[/font]

[font="arial, sans-serif"][size=2]    glLoadIdentity();                       // reset modelview matrix[/font]

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[/font]

[font="arial, sans-serif"][size=2]    m_windowWidth = width;[/font]

[font="arial, sans-serif"][size=2]    m_windowHeight = height;[/font]

[font="arial, sans-serif"][size=2]}[/font]

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[/font]

[font="arial, sans-serif"][size=2]void CGfxOpenGL::Prepare(float dt)[/font]

[font="arial, sans-serif"][size=2]{[/font]

[font="arial, sans-serif"][size=2]    m_angle += 0.1f;[/font]

[font="arial, sans-serif"][size=2]}[/font]

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[/font]

[font="arial, sans-serif"][size=2]void CGfxOpenGL::Render()[/font]

[font="arial, sans-serif"][size=2]{[/font]

[font="arial, sans-serif"][size=2]    // clear screen and depth buffer[/font]

[font="arial, sans-serif"][size=2]    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);     [/font]

[font="arial, sans-serif"][size=2]    glLoadIdentity();[/font]

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[/font]

[font="arial, sans-serif"][size=2]    // move back 5 units and rotate about all 3 axes[/font]

[font="arial, sans-serif"][size=2]    glTranslatef(0.0, 0.0, -5.0f);[/font]

[font="arial, sans-serif"][size=2]    glRotatef(m_angle, 1.0f, 0.0f, 0.0f);[/font]

[font="arial, sans-serif"][size=2]    glRotatef(m_angle, 0.0f, 1.0f, 0.0f);[/font]

[font="arial, sans-serif"][size=2]    glRotatef(m_angle, 0.0f, 0.0f, 1.0f);[/font]

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[/font]

[font="arial, sans-serif"][size=2]    // lime greenish color[/font]

[font="arial, sans-serif"][size=2]    glColor3f(0.7f, 1.0f, 0.3f);[/font]

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[/font]

[font="arial, sans-serif"][size=2]    // draw the triangle such that the rotation point is in the center[/font]

[font="arial, sans-serif"][size=2]    glBegin(GL_TRIANGLES);[/font]

[font="arial, sans-serif"][size=2]        glVertex3f(1.0f, -1.0f, 0.0f);[/font]

[font="arial, sans-serif"][size=2]        glVertex3f(-1.0f, -1.0f, 0.0f);[/font]

[font="arial, sans-serif"][size=2]        glVertex3f(0.0f, 1.0f, 0.0f);[/font]

[font="arial, sans-serif"][size=2]    glEnd();[/font]

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[font=arial, sans-serif][size=2]main.cpp[/font]
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[font="arial, sans-serif"][size=2]#define WIN32_LEAN_AND_MEAN[/font]

[font="arial, sans-serif"][size=2]#define WIN32_EXTRA_LEAN[/font]

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[/font]

[font="arial, sans-serif"][size=2]#include <windows.h>[/font]

[font="arial, sans-serif"][size=2]#include <gl/gl.h>[/font]

[font="arial, sans-serif"][size=2]#include <gl/glu.h>[/font]

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[/font]

[font="arial, sans-serif"][size=2]#include "CGfxOpenGL.h"[/font]

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[font="arial, sans-serif"][size=2]bool exiting = false;[/font]

[font="arial, sans-serif"][size=2]long windowWidth = 800;[/font]

[font="arial, sans-serif"][size=2]long windowHeight = 600;[/font]

[font="arial, sans-serif"][size=2]long windowBits = 32;[/font]

[font="arial, sans-serif"][size=2]bool fullscreen = false;[/font]

[font="arial, sans-serif"][size=2]HDC hDC;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]CGfxOpenGL *g_glRender = NULL;[/font]

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[/font]

[font="arial, sans-serif"][size=2]void SetupPixelFormat(HDC hDC)[/font]

[font="arial, sans-serif"][size=2]{[/font]

[font="arial, sans-serif"][size=2]    int pixelFormat;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    PIXELFORMATDESCRIPTOR pfd =[/font]

[font="arial, sans-serif"][size=2]    {   [/font]

[font="arial, sans-serif"][size=2]        sizeof(PIXELFORMATDESCRIPTOR),  // size[/font]

[font="arial, sans-serif"][size=2]            1,                          // version[/font]

[font="arial, sans-serif"][size=2]            PFD_SUPPORT_OPENGL |        // OpenGL window[/font]

[font="arial, sans-serif"][size=2]            PFD_DRAW_TO_WINDOW |        // render to window[/font]

[font="arial, sans-serif"][size=2]            PFD_DOUBLEBUFFER,           // support double-buffering[/font]

[font="arial, sans-serif"][size=2]            PFD_TYPE_RGBA,              // color type[/font]

[font="arial, sans-serif"][size=2]            32,                         // prefered color depth[/font]

[font="arial, sans-serif"][size=2]            0, 0, 0, 0, 0, 0,           // color bits (ignored)[/font]

[font="arial, sans-serif"][size=2]            0,                          // no alpha buffer[/font]

[font="arial, sans-serif"][size=2]            0,                          // alpha bits (ignored)[/font]

[font="arial, sans-serif"][size=2]            0,                          // no accumulation buffer[/font]

[font="arial, sans-serif"][size=2]            0, 0, 0, 0,                 // accum bits (ignored)[/font]

[font="arial, sans-serif"][size=2]            16,                         // depth buffer[/font]

[font="arial, sans-serif"][size=2]            0,                          // no stencil buffer[/font]

[font="arial, sans-serif"][size=2]            0,                          // no auxiliary buffers[/font]

[font="arial, sans-serif"][size=2]            PFD_MAIN_PLANE,             // main layer[/font]

[font="arial, sans-serif"][size=2]            0,                          // reserved[/font]

[font="arial, sans-serif"][size=2]            0, 0, 0,                    // no layer, visible, damage masks[/font]

[font="arial, sans-serif"][size=2]    };[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    pixelFormat = ChoosePixelFormat(hDC, &pfd);[/font]

[font="arial, sans-serif"][size=2]    SetPixelFormat(hDC, pixelFormat, &pfd);[/font]

[font="arial, sans-serif"][size=2]}[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]LRESULT CALLBACK MainWindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)[/font]

[font="arial, sans-serif"][size=2]{[/font]

[font="arial, sans-serif"][size=2]    static HDC hDC;[/font]

[font="arial, sans-serif"][size=2]    static HGLRC hRC;[/font]

[font="arial, sans-serif"][size=2]    int height, width;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    // dispatch messages[/font]

[font="arial, sans-serif"][size=2]    switch (uMsg)[/font]

[font="arial, sans-serif"][size=2]    {   [/font]

[font="arial, sans-serif"][size=2]    case WM_CREATE:         // window creation[/font]

[font="arial, sans-serif"][size=2]        hDC = GetDC(hWnd);[/font]

[font="arial, sans-serif"][size=2]        SetupPixelFormat(hDC);[/font]

[font="arial, sans-serif"][size=2]        //SetupPalette();[/font]

[font="arial, sans-serif"][size=2]        hRC = wglCreateContext(hDC);[/font]

[font="arial, sans-serif"][size=2]        wglMakeCurrent(hDC, hRC);[/font]

[font="arial, sans-serif"][size=2]        break;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    case WM_DESTROY:            // window destroy[/font]

[font="arial, sans-serif"][size=2]    case WM_QUIT:[/font]

[font="arial, sans-serif"][size=2]    case WM_CLOSE:                  // windows is closing[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]        // deselect rendering context and delete it[/font]

[font="arial, sans-serif"][size=2]        wglMakeCurrent(hDC, NULL);[/font]

[font="arial, sans-serif"][size=2]        wglDeleteContext(hRC);[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]        // send WM_QUIT to message queue[/font]

[font="arial, sans-serif"][size=2]        PostQuitMessage(0);[/font]

[font="arial, sans-serif"][size=2]        break;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    case WM_SIZE:[/font]

[font="arial, sans-serif"][size=2]        height = HIWORD(lParam);        // retrieve width and height[/font]

[font="arial, sans-serif"][size=2]        width = LOWORD(lParam);[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]        g_glRender->SetupProjection(width, height);[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]        break;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    case WM_ACTIVATEAPP:        // activate app[/font]

[font="arial, sans-serif"][size=2]        break;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    case WM_PAINT:              // paint[/font]

[font="arial, sans-serif"][size=2]        PAINTSTRUCT ps;[/font]

[font="arial, sans-serif"][size=2]        BeginPaint(hWnd, &ps);[/font]

[font="arial, sans-serif"][size=2]        EndPaint(hWnd, &ps);[/font]

[font="arial, sans-serif"][size=2]        break;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    case WM_LBUTTONDOWN:        // left mouse button[/font]

[font="arial, sans-serif"][size=2]        break;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    case WM_RBUTTONDOWN:        // right mouse button[/font]

[font="arial, sans-serif"][size=2]        break;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    case WM_MOUSEMOVE:          // mouse movement[/font]

[font="arial, sans-serif"][size=2]        break;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    case WM_LBUTTONUP:          // left button release[/font]

[font="arial, sans-serif"][size=2]        break;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    case WM_RBUTTONUP:          // right button release[/font]

[font="arial, sans-serif"][size=2]        break;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    case WM_KEYUP:[/font]

[font="arial, sans-serif"][size=2]        break;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    case WM_KEYDOWN:[/font]

[font="arial, sans-serif"][size=2]        int fwKeys;[/font]

[font="arial, sans-serif"][size=2]        LPARAM keyData;[/font]

[font="arial, sans-serif"][size=2]        fwKeys = (int)wParam;    // virtual-key code [/font]

[font="arial, sans-serif"][size=2]        keyData = lParam;          // key data [/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]        switch(fwKeys)[/font]

[font="arial, sans-serif"][size=2]        {[/font]

[font="arial, sans-serif"][size=2]        case VK_ESCAPE:[/font]

[font="arial, sans-serif"][size=2]            PostQuitMessage(0);[/font]

[font="arial, sans-serif"][size=2]            break;[/font]

[font="arial, sans-serif"][size=2]        default:[/font]

[font="arial, sans-serif"][size=2]            break;[/font]

[font="arial, sans-serif"][size=2]        }[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]        break;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    default:[/font]

[font="arial, sans-serif"][size=2]        break;[/font]

[font="arial, sans-serif"][size=2]    }[/font]

[font="arial, sans-serif"][size=2]    return DefWindowProc(hWnd, uMsg, wParam, lParam);[/font]

[font="arial, sans-serif"][size=2]}[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd)[/font]

[font="arial, sans-serif"][size=2]{[/font]

[font="arial, sans-serif"][size=2]    WNDCLASSEX windowClass;     // window class[/font]

[font="arial, sans-serif"][size=2]    HWND       hwnd;            // window handle[/font]

[font="arial, sans-serif"][size=2]    MSG        msg;             // message[/font]

[font="arial, sans-serif"][size=2]    DWORD      dwExStyle;       // Window Extended Style[/font]

[font="arial, sans-serif"][size=2]    DWORD      dwStyle;         // Window Style[/font]

[font="arial, sans-serif"][size=2]    RECT       windowRect;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    g_glRender = new CGfxOpenGL;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    windowRect.left=(long)0;                        // Set Left Value To 0[/font]

[font="arial, sans-serif"][size=2]    windowRect.right=(long)windowWidth; // Set Right Value To Requested Width[/font]

[font="arial, sans-serif"][size=2]    windowRect.top=(long)0;                         // Set Top Value To 0[/font]

[font="arial, sans-serif"][size=2]    windowRect.bottom=(long)windowHeight;   // Set Bottom Value To Requested Height[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    // fill out the window class structure[/font]

[font="arial, sans-serif"][size=2]    windowClass.cbSize          = sizeof(WNDCLASSEX);[/font]

[font="arial, sans-serif"][size=2]    windowClass.style           = CS_HREDRAW | CS_VREDRAW;[/font]

[font="arial, sans-serif"][size=2]    windowClass.lpfnWndProc     = MainWindowProc;[/font]

[font="arial, sans-serif"][size=2]    windowClass.cbClsExtra      = 0;[/font]

[font="arial, sans-serif"][size=2]    windowClass.cbWndExtra      = 0;[/font]

[font="arial, sans-serif"][size=2]    windowClass.hInstance       = hInstance;[/font]

[font="arial, sans-serif"][size=2]    windowClass.hIcon           = LoadIcon(NULL, IDI_APPLICATION);  // default icon[/font]

[font="arial, sans-serif"][size=2]    windowClass.hCursor         = LoadCursor(NULL, IDC_ARROW);      // default arrow[/font]

[font="arial, sans-serif"][size=2]    windowClass.hbrBackground   = NULL;                             // don't need background[/font]

[font="arial, sans-serif"][size=2]    windowClass.lpszMenuName    = NULL;                             // no menu[/font]

[font="arial, sans-serif"][size=2]    windowClass.lpszClassName   = "GLClass";[/font]

[font="arial, sans-serif"][size=2]    windowClass.hIconSm         = LoadIcon(NULL, IDI_WINLOGO);      // windows logo small icon[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    // register the windows class[/font]

[font="arial, sans-serif"][size=2]    if (!RegisterClassEx(&windowClass))[/font]

[font="arial, sans-serif"][size=2]        return 0;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    if (fullscreen)                             // fullscreen?[/font]

[font="arial, sans-serif"][size=2]    {[/font]

[font="arial, sans-serif"][size=2]        DEVMODE dmScreenSettings;                   // device mode[/font]

[font="arial, sans-serif"][size=2]        memset(&dmScreenSettings,0,sizeof(dmScreenSettings));[/font]

[font="arial, sans-serif"][size=2]        dmScreenSettings.dmSize = sizeof(dmScreenSettings); [/font]

[font="arial, sans-serif"][size=2]        dmScreenSettings.dmPelsWidth = windowWidth;         // screen width[/font]

[font="arial, sans-serif"][size=2]        dmScreenSettings.dmPelsHeight = windowHeight;           // screen height[/font]

[font="arial, sans-serif"][size=2]        dmScreenSettings.dmBitsPerPel = windowBits;             // bits per pixel[/font]

[font="arial, sans-serif"][size=2]        dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]        // [/font]

[font="arial, sans-serif"][size=2]        if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)[/font]

[font="arial, sans-serif"][size=2]        {[/font]

[font="arial, sans-serif"][size=2]            // setting display mode failed, switch to windowed[/font]

[font="arial, sans-serif"][size=2]            MessageBox(NULL, "Display mode failed", NULL, MB_OK);[/font]

[font="arial, sans-serif"][size=2]            fullscreen = FALSE; [/font]

[font="arial, sans-serif"][size=2]        }[/font]

[font="arial, sans-serif"][size=2]    }[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    if (fullscreen)                             // Are We Still In Fullscreen Mode?[/font]

[font="arial, sans-serif"][size=2]    {[/font]

[font="arial, sans-serif"][size=2]        dwExStyle=WS_EX_APPWINDOW;                  // Window Extended Style[/font]

[font="arial, sans-serif"][size=2]        dwStyle=WS_POPUP;                       // Windows Style[/font]

[font="arial, sans-serif"][size=2]        ShowCursor(FALSE);                      // Hide Mouse Pointer[/font]

[font="arial, sans-serif"][size=2]    }[/font]

[font="arial, sans-serif"][size=2]    else[/font]

[font="arial, sans-serif"][size=2]    {[/font]

[font="arial, sans-serif"][size=2]        dwExStyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;   // Window Extended Style[/font]

[font="arial, sans-serif"][size=2]        dwStyle=WS_OVERLAPPEDWINDOW;                    // Windows Style[/font]

[font="arial, sans-serif"][size=2]    }[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    AdjustWindowRectEx(&windowRect, dwStyle, FALSE, dwExStyle);     // Adjust Window To True Requested Size[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    // class registered, so now create our window[/font]

[font="arial, sans-serif"][size=2]    hwnd = CreateWindowEx(NULL,                                 // extended style[/font]

[font="arial, sans-serif"][size=2]        "GLClass",                          // class name[/font]

[font="arial, sans-serif"][size=2]        "BOGLGP - Chapter 2 - OpenGL Application",      // app name[/font]

[font="arial, sans-serif"][size=2]        dwStyle | WS_CLIPCHILDREN |[/font]

[font="arial, sans-serif"][size=2]        WS_CLIPSIBLINGS,[/font]

[font="arial, sans-serif"][size=2]        0, 0,                               // x,y coordinate[/font]

[font="arial, sans-serif"][size=2]        windowRect.right - windowRect.left,[/font]

[font="arial, sans-serif"][size=2]        windowRect.bottom - windowRect.top, // width, height[/font]

[font="arial, sans-serif"][size=2]        NULL,                               // handle to parent[/font]

[font="arial, sans-serif"][size=2]        NULL,                               // handle to menu[/font]

[font="arial, sans-serif"][size=2]        hInstance,                          // application instance[/font]

[font="arial, sans-serif"][size=2]        NULL);                              // no extra params[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    hDC = GetDC(hwnd);[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    // check if window creation failed (hwnd would equal NULL)[/font]

[font="arial, sans-serif"][size=2]    if (!hwnd)[/font]

[font="arial, sans-serif"][size=2]        return 0;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    ShowWindow(hwnd, SW_SHOW);          // display the window[/font]

[font="arial, sans-serif"][size=2]    UpdateWindow(hwnd);                 // update the window[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    g_glRender->Init();[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    while (!exiting)[/font]

[font="arial, sans-serif"][size=2]    {[/font]

[font="arial, sans-serif"][size=2]        g_glRender->Prepare(0.0f);[/font]

[font="arial, sans-serif"][size=2]        g_glRender->Render();[/font]

[font="arial, sans-serif"][size=2]        SwapBuffers(hDC);[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]        while (PeekMessage (&msg, NULL, 0, 0, PM_NOREMOVE))[/font]

[font="arial, sans-serif"][size=2]        {[/font]

[font="arial, sans-serif"][size=2]            if (!GetMessage (&msg, NULL, 0, 0))[/font]

[font="arial, sans-serif"][size=2]            {[/font]

[font="arial, sans-serif"][size=2]                exiting = true;[/font]

[font="arial, sans-serif"][size=2]                break;[/font]

[font="arial, sans-serif"][size=2]            }[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]            TranslateMessage (&msg);[/font]

[font="arial, sans-serif"][size=2]            DispatchMessage (&msg);[/font]

[font="arial, sans-serif"][size=2]        }[/font]

[font="arial, sans-serif"][size=2]    }[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    delete g_glRender;[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    if (fullscreen)[/font]

[font="arial, sans-serif"][size=2]    {[/font]

[font="arial, sans-serif"][size=2]        ChangeDisplaySettings(NULL,0);          // If So Switch Back To The Desktop[/font]

[font="arial, sans-serif"][size=2]        ShowCursor(TRUE);                       // Show Mouse Pointer[/font]

[font="arial, sans-serif"][size=2]    }[/font]

[font="arial, sans-serif"][size=2]

[/font]

[font="arial, sans-serif"][size=2]    return (int)msg.wParam;[/font][font="arial, sans-serif"][size=2]}

[/font]
[font="arial, sans-serif"]
[/font]
[font="arial, sans-serif"]
[/font]
[font="arial, sans-serif"][color=#888888][size=2][color=#000000][size=2]I compiled the codeblocks and appeared the following errors:[color=#1111CC][/font]
[font="arial, sans-serif"]

[/font]

[font="arial, sans-serif"]

obj\Debug\main.o||In function `Z16SetupPixelFormatP5HDC__':|

E:\Projetos OpenGl\Game Programming\Teste\main.cpp|47|undefined reference to `ChoosePixelFormat@8'|

E:\Projetos OpenGl\Game Programming\Teste\main.cpp|48|undefined reference to `SetPixelFormat@12'|

obj\Debug\main.o||In function `WinMain@16':|

E:\Projetos OpenGl\Game Programming\Teste\main.cpp|244|undefined reference to `SwapBuffers@4'|

||=== Build finished: 3 errors, 0 warnings ===|[/font]

[font="arial, sans-serif"]

[/font]
[font="arial, sans-serif"]
[/font]
[font=arial, sans-serif][size=2]
[/font]

Zakwayda

2,389

May 15, 2011 03:21 AM

Those are WinAPI functions, so make sure you're linking to the appropriate libraries.

OpenGl and Windows

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OpenGl and Windows

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