Question

How to create window with specific size and color using OpenGL with C

Answer 1

#include <stdio.h>

#include <GL/glew.h>
#include <GLFW/glfw3.h>

const GLint WIDTH = 800, HEIGHT = 600;

void error_callback(int error, const char* description) {
	puts(description);
}

int main() {

	glfwSetErrorCallback(error_callback);

	if (!glfwInit()) {
		printf("ERROR: GLFW failed to Initialize\n");
		return 1;
	}

	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);

	GLFWwindow* window = glfwCreateWindow(WIDTH, HEIGHT, "Test Window", NULL, NULL);

		if (!window) {
		printf("ERROR: GLFW window creation falied!\n");
		glfwTerminate();
		return 1;
	}

	int bufferWidth, bufferHeigth;
	glfwGetFramebufferSize(window, &bufferWidth, &bufferHeigth);

	glfwMakeContextCurrent(window);

	if (glewInit() != GLEW_OK) {
		printf("ERROR: GLEW initialize falied!\n");
		glfwDestroyWindow(window);
		glfwTerminate();
		return 1;
	}

	glViewport(0, 0, bufferWidth, bufferHeigth);

	while (!glfwWindowShouldClose(window)) {
		glfwPollEvents();

		glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
		glClear(GL_COLOR_BUFFER_BIT);

		glfwSwapBuffers(window);
	}

	return 0;



	/*
	run:


	
	*/
}

 

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