1>Compiling...
1>main.cpp
1>Linking...
1>main.obj : error LNK2001: unresolved external symbol __imp____glewAttachShader
1>main.obj : error LNK2001: unresolved external symbol __imp____glewCreateProgram
1>main.obj : error LNK2001: unresolved external symbol __imp____glewShaderSource
1>main.obj : error LNK2001: unresolved external symbol __imp____glewCreateShader

1>Compiling...
1>main.cpp
1>Linking...
1>main.obj : error LNK2001: unresolved external symbol _pglAttachShader
1>main.obj : error LNK2001: unresolved external symbol _pglCreateProgram
1>main.obj : error LNK2001: unresolved external symbol _pglShaderSource
1>main.obj : error LNK2001: unresolved external symbol _pglCreateShader

#include <windows.h>
#include <GL/GLee.h>
#include <GL/glut.h>
#include <fstream>
#include <string>

GLuint vShader, p;

const char *loadShader(char *filename) {
	std::ifstream ifs(filename);
	std::string text = "", line, nl="\n";
	if(ifs.is_open()) {
		while(!ifs.eof()) {
			std::getline(ifs, line);
			text.append(line.append(nl));
		}
	}
	return text.data();
}

static void resize(int width, int height)
{
    const float ar = (float) width / (float) height;
    
    glViewport(0, 0, width, height);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    glFrustum(-ar, ar, -1.0, 1.0, 2, 100.0);
    
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity() ;
}

static void display(void)
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glutSwapBuffers();
}



static void MainLoop(void)
{
    display();
}

void setupRC() {
	GLfloat bg[] = {0.0f, 0.0f, 0.0f, 1.0f};

    glClearColor(bg[0], bg[1], bg[2], bg[3]);
    
    glEnable(GL_CULL_FACE);
    glCullFace(GL_BACK);
    glClearStencil(0);
    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LESS);
    glEnable(GL_NORMALIZE);
}

void setupShaders() {	
	vShader = glCreateShader(GL_VERTEX_SHADER);
	const char *vs = loadShader("hello.vs");
	glShaderSource(vShader, 1, &vs, NULL);
	free((void *)vs);
	p = glCreateProgram();
	glAttachShader(p, vShader);
}

int main(int argc, char *argv[])
{
    glutInit(&argc, argv);
    glutInitWindowSize(800,600);
    glutInitWindowPosition(10,30);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("Shaders Intro");
    glutReshapeFunc(resize);
    glutDisplayFunc(MainLoop);
    glutIdleFunc(MainLoop);

	setupRC();
	setupShaders();
    
    glutMainLoop();

    return EXIT_SUCCESS;
}