c-OpenGL窗口未打开

我有来自OpenGLBook(openglbook.com)的代码,该代码可以编译,但无法加载.我完全不知道为什么它没有加载.代码如下：

main.cpp中

#include "main.h"

/// Methods
/// -----------------------------

int main(int argc, char* argv[])
{
    Initialize(argc, argv);

    glutMainLoop();

    exit(EXIT_SUCCESS);
}

main.h

#ifndef main_h
#define main_h

#include <cstdlib>
#include <cstdio>
#include <cstring>
#include <GL/glew.h>
#include <GL/freeglut.h>

#define WINDOW_TITLE_PREFIX "CHAPTER 1"

void Initialize(int, char*[]);
void InitWindow(int, char*[]);
void ResizeFunction(int, int);
void RenderFunction(void);

#endif

functions.cpp

#include "main.h"

int CurrentWidth = 800,
    CurrentHeight = 600,
    WindowHandle = 0;

void Initialize(int argc, char* argv[])
{
    InitWindow(argc, argv);

    fprintf(
        stdout,
        "INFO: OpenGL Version: %s\n",
        glGetString(GL_VERSION)
        );

    glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
}

void InitWindow(int argc, char* argv[])
{
    glutInit(&argc, argv);

    glutInitContextVersion(4, 2);
    glutInitContextFlags(GLUT_FORWARD_COMPATIBLE);
    glutInitContextProfile(GLUT_CORE_PROFILE);</pre>

    glutSetOption(
        GLUT_ACTION_ON_WINDOW_CLOSE,
        GLUT_ACTION_GLUTMAINLOOP_RETURNS
        );

    glutInitWindowSize(CurrentWidth, CurrentHeight);

    glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA);

    WindowHandle = glutCreateWindow(WINDOW_TITLE_PREFIX);

    if(WindowHandle < 1) {
        fprintf(
            stderr,
            "ERROR: Could not create a new rendering window.\n"
            );
        exit(EXIT_FAILURE);
    }

    glutReshapeFunc(ResizeFunction);
    glutDisplayFunc(RenderFunction);

}

void ResizeFunction(int Width, int Height)
{
    CurrentWidth = Width;
    CurrentHeight = Height;
    glViewport(0, 0, CurrentWidth, CurrentHeight);
}

void RenderFunction(void)
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glutSwapBuffers();
    glutPostRedisplay();
}

当我编译并尝试在Visual Studio 2010中运行.exe时,什么都没有发生.
OpenGL窗口甚至没有打开. Visual Studio好像在运行某东西大约2秒钟,然后返回其正常状态.

解决方法:

glutInitContextVersion(4, 2);

您当前的图形驱动程序实际上是否支持OpenGL 4.2？如果不是,则窗口创建将失败. 4.2还是比较新的；请尝试4.1.

标签：glew,glut,c,opengl,visual-c
来源： https://codeday.me/bug/20191013/1909594.html