dev c++ openGL配置

基本dev c++的openGL配置我简述一下
(1）Dev C++里面OpenGl是已经装好了的，我们要做的就是下载安装GLUT。
（2）解压，将 glut32.dll 和 glut.dll 拷贝到 c:\windows\system32下面

将 glut32.lib 和 glut.lib 拷贝到Dev C++安装目录下的 lib 目录下，

将 glut.h 拷贝到Dev C++安装目录下的 \include\gl\ 目录下（

(3) 方式一：文件——新建——项目——basic——console application——c项目——确定
（还有方式二，下面会说）

（4）项目－〉项目属性－〉参数，把下面的这段复制到连接器中－〉确定
-lglut32
-lglu32
-lopengl32
-lglaux
-lgdi32
-lwinmm
-glut.h
（5）工具——编译选项，连接器命令添加-static-libgcc -lopengl32 -lglu32 -lgdi32 -lwinmm

（5）编译运行
（6）设置如图
（7）如果遇到的问题：运行报错缺少glut32.dll文件
我已经将glut32.dll放入System32文件夹了，但是解决不了这个问题。。。由于一些原因需要将该文件放到SysWow64文件夹里才行。
（8）到这里简单的图形是可以生成的，比如矩形，圆什么的
但是写巴恩斯利蕨Barnsley Fern机会报错如下

报错：main.o main.c:(.text+0xe): undefined reference to _imp__glClear' main.o main.c:(.text+0x1fc): undefined reference toglutInit’
collect2.exe [Error] ld returned 1 exit status
\Makefile.win recipe for target ‘test1.exe’ failed
然后Makefile.win自动到第25行，显示有错。

尝试了各种方法，我这个人比较倔强，我弄了几乎一个通宵，看各种有类似问题的blog，但就是解决不了。最终每一个能解决我的问题
后来我尝试用换一种方式，解决方案如下：
把创建项目的方式改一下，换成dev c++自带的openGL.
项目创建方式二：文件——>新建——项目——multMedia——OpenGL，取名，确定。这时它会自动生成有关openGL的一些代码。这些代码不动，把自己的代码和函数写进去。最终结果

最终代码：

#include <windows.h>
#include <gl/gl.h>
#include <GL/glut.h>
#include<stdlib.h>
#include<stdio.h>
#include<math.h>
#include<time.h>
void fractalFern(void){
    glClear(GL_COLOR_BUFFER_BIT);
    glColor3f(0.4f, 0.8f, 0.4f);
    glBegin(GL_POINTS);
    GLfloat x=0,y=0;
    srand((unsigned)time(0));
	int i;
    for (i = 0; i < 50000;i++){

            int n = (int) 100*rand()/(RAND_MAX + 1);
            //printf("%d ", n);
            GLfloat _x, _y;
            if (n < 1){
                _x = 0; _y = 0.16*y;
            }
            else if(n < 8){
                _x = 0.2*x - 0.26*y;
                _y = 0.23*x + 0.22*y + 1.6;
            }
            else if (n < 15){
                _x = -0.15*x + 0.28*y;
                _y = 0.26*x + 0.24*y + 0.44;
            }
            else{
                _x = 0.85*x + 0.04*y;
                _y = -0.04*x + 0.85*y + 1.6;
            }
            x = _x;
            y = _y;
            glVertex2f(_x/10, _y/10-0.3);
            glFlush();
    }
    glEnd();
    glFlush();
}

int main(int argc, char* argv[])
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_SINGLE);
    glutInitWindowPosition(100, 100);
    glutInitWindowSize(450, 450);
    glutCreateWindow("巴恩斯利蕨");
    glutDisplayFunc(&fractalFern);
    glutMainLoop();
    return 0;
}
/**************************
 * Function Declarations
 *
 **************************/

LRESULT CALLBACK WndProc (HWND hWnd, UINT message,
WPARAM wParam, LPARAM lParam);
void EnableOpenGL (HWND hWnd, HDC *hDC, HGLRC *hRC);
void DisableOpenGL (HWND hWnd, HDC hDC, HGLRC hRC);


/**************************
 * WinMain
 *
 **************************/

int WINAPI WinMain (HINSTANCE hInstance,
                    HINSTANCE hPrevInstance,
                    LPSTR lpCmdLine,
                    int iCmdShow)
{
    WNDCLASS wc;
    HWND hWnd;
    HDC hDC;
    HGLRC hRC;        
    MSG msg;
    BOOL bQuit = FALSE;
    float theta = 0.0f;

    /* register window class */
    wc.style = CS_OWNDC;
    wc.lpfnWndProc = WndProc;
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hInstance = hInstance;
    wc.hIcon = LoadIcon (NULL, IDI_APPLICATION);
    wc.hCursor = LoadCursor (NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH) GetStockObject (BLACK_BRUSH);
    wc.lpszMenuName = NULL;
    wc.lpszClassName = "GLSample";
    RegisterClass (&wc);

    /* create main window */
    hWnd = CreateWindow (
      "GLSample", "OpenGL Sample", 
      WS_CAPTION | WS_POPUPWINDOW | WS_VISIBLE,
      0, 0, 256, 256,
      NULL, NULL, hInstance, NULL);

    /* enable OpenGL for the window */
    EnableOpenGL (hWnd, &hDC, &hRC);

    /* program main loop */
    while (!bQuit)
    {
        /* check for messages */
        if (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE))
        {
            /* handle or dispatch messages */
            if (msg.message == WM_QUIT)
            {
                bQuit = TRUE;
            }
            else
            {
                TranslateMessage (&msg);
                DispatchMessage (&msg);
            }
        }
        else
        {
            /* OpenGL animation code goes here */

            glClearColor (0.0f, 0.0f, 0.0f, 0.0f);
            glClear (GL_COLOR_BUFFER_BIT);

            glPushMatrix ();
            glRotatef (theta, 0.0f, 0.0f, 1.0f);
            glBegin (GL_TRIANGLES);
            glColor3f (1.0f, 0.0f, 0.0f);   glVertex2f (0.0f, 1.0f);
            glColor3f (0.0f, 1.0f, 0.0f);   glVertex2f (0.87f, -0.5f);
            glColor3f (0.0f, 0.0f, 1.0f);   glVertex2f (-0.87f, -0.5f);
            glEnd ();
            glPopMatrix ();

            SwapBuffers (hDC);

            theta += 1.0f;
            Sleep (1);
        }
    }

    /* shutdown OpenGL */
    DisableOpenGL (hWnd, hDC, hRC);

    /* destroy the window explicitly */
    DestroyWindow (hWnd);

    return msg.wParam;
}


/********************
 * Window Procedure
 *
 ********************/

LRESULT CALLBACK WndProc (HWND hWnd, UINT message,
                          WPARAM wParam, LPARAM lParam)
{

    switch (message)
    {
    case WM_CREATE:
        return 0;
    case WM_CLOSE:
        PostQuitMessage (0);
        return 0;

    case WM_DESTROY:
        return 0;

    case WM_KEYDOWN:
        switch (wParam)
        {
        case VK_ESCAPE:
            PostQuitMessage(0);
            return 0;
        }
        return 0;

    default:
        return DefWindowProc (hWnd, message, wParam, lParam);
    }
}
/*******************
 * Enable OpenGL
 *
 *******************/

void EnableOpenGL (HWND hWnd, HDC *hDC, HGLRC *hRC)
{
    PIXELFORMATDESCRIPTOR pfd;
    int iFormat;

    /* get the device context (DC) */
    *hDC = GetDC (hWnd);

    /* set the pixel format for the DC */
    ZeroMemory (&pfd, sizeof (pfd));
    pfd.nSize = sizeof (pfd);
    pfd.nVersion = 1;
    pfd.dwFlags = PFD_DRAW_TO_WINDOW | 
      PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
    pfd.iPixelType = PFD_TYPE_RGBA;
    pfd.cColorBits = 24;
    pfd.cDepthBits = 16;
    pfd.iLayerType = PFD_MAIN_PLANE;
    iFormat = ChoosePixelFormat (*hDC, &pfd);
    SetPixelFormat (*hDC, iFormat, &pfd);

    /* create and enable the render context (RC) */
    *hRC = wglCreateContext( *hDC );
    wglMakeCurrent( *hDC, *hRC );

}
/******************
 * Disable OpenGL
 *
 ******************/
void DisableOpenGL (HWND hWnd, HDC hDC, HGLRC hRC)
{
    wglMakeCurrent (NULL, NULL);
    wglDeleteContext (hRC);
    ReleaseDC (hWnd, hDC);
}

（3）后来写实验二 ，字体变形和画曲线，我遇到了同样的问题，但是我已经按照上面的做了。经过我不懈努力，用方式一：文件——新建——项目——basic——console application——c项目——确定 来也是可以的，方式二也可以。
配置参数一样，但是一定记得加上以下头文件

#define GLUT_DISABLE_ATEXIT_HACK
#include<time.h>
#include<windef.h>
#include<wingdi.h>
#include<windows.h>
#include <GL/glut.h>
#include<stdlib.h>
#include<stdio.h>
#include<math.h>


//更确切说用如下
#include<time.h>
#include<stdlib.h>
#include<windef.h>
#include<wingdi.h>
#include<windows.h>

然后以下分别是两位优秀的同学写的代码，姐妹黄，以及大兄弟余。
姐妹黄

//#include "pch.h"
//#include <iostream>
#define GLUT_DISABLE_ATEXIT_HACK
#include<time.h>
#include<windef.h>
#include<wingdi.h>
#include<windows.h>
#include <GL/glut.h>
#include<stdlib.h>
#include<stdio.h>
#include<math.h>
#define bNum 21 //bezier曲线的数量
#define point fPoint //使用哪个点阵
#define tana -0.64 //倾斜的度数
GLfloat p1[] = {
    0.237f, 0.620f };//初始化点
GLfloat p2[] = {
    0.237f, 0.620f };
GLfloat p3[] = {
    0.237f, 0.120f };
GLfloat p4[] = {
    0.237f, 0.120f };
GLfloat tPoint[16][8] = {
               //T点阵
{
   0.237f,0.620f,0.237f,0.620f,0.237f,0.120f,0.237f,0.120f},
{
   0.237f,0.120f,0.237f,0.035f,0.226f,0.024f,0.143f,0.019f},
{
   0.143f,0.019f,0.143f,0.019f,0.143f,0.000f,0.143f,0.000f},
{
   0.143f,0.000f,0.143f,0.000f,0.435f,0.000f,0.435f,0.000f},
{
   0.435f,0.000f,0.435f,0.000f,0.435f,0.019f,0.435f,0.019f},
{
   0.435f,0.019f,0.353f,0.023f,0.339f,0.036f,0.339f,0.109f},
{
   0.339f,0.109f,0.339f,0.108f,0.339f,0.620f,0.339f,0.620f},</