Question

我最近开始关注these OpenGL教程。在 Hello Window 教程中，函数gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)返回false之前，我没有遇到麻烦。这会导致错误：

Exception thrown at 0x00000000 in openGL_001.exe: 0xC0000005: Access violation executing location 0x00000000.

和

Unhandled exception at 0x7281C1ED in openGL_001.exe: 0xC0000005: Access violation executing location 0x00000000.

在调用函数glViewport(0, 0, 800, 600)时抛出（参见下面的代码）。我知道 GLAD 文件是问题，因为代码包含if语句（参见下面的代码），检查 GLAD 是否已成功处理OpenGL的功能指针。我尝试使用以下 GLAD configurations：

来使其工作

语言：C / C ++，规范：OpenGl

API gl：v.3.0，Profile：Core
API gl：v.3.3，Profile：Core
API gl：v.4.4，Profile：Core
API gl：v.4.6，Profile：Core

代码：

#include <iostream>
#include <glad\glad.h>
#include <GLFW\glfw3.h>

void framebuffer_size_callback(GLFWwindow* window, int width, int height);

int main() {
glfwInit();
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);

GLFWwindow* window = glfwCreateWindow(800, 600, "Learn OpenGL", NULL, NULL);
if (window = NULL) {
    std::cout << "Failed to create GLFW window" << std::endl;
    glfwTerminate();
    return -1;
}
glfwMakeContextCurrent(window);

if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
    std::cout << "Failed to initialise GLAD" << std::endl;
}

glViewport(0, 0, 800, 600);
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);

//render loop
while (!glfwWindowShouldClose(window)) {
    glfwSwapBuffers(window);
    glfwPollEvents();
}
glfwTerminate();
return 0;

}

void framebuffer_size_callback(GLFWwindow* window, int width, int height) {
glViewport(0, 0, width, height);

}

OpenGL，GLFW，GLAD。 glViewport（0,0,800,600）抛出内存错误

1 个答案: