OpenGL in C (errors)

[midimatt]

I'm getting Linker errors when trying to compile my OpenGL code with Dev C++, the code compiles perfectly on the university machines using Visual Studio.

I've visited several sites that explain how to get openGL to work om Dev C++, and i've followed the steps.

-Installed the Dev Pack.
-added the glut32.dll file
-changed the parameters in the project options

the parameters are "-lglut32 -lglu32 -lopengl32 -lwinmm -lgdi32" i've tried entering all on same line, i've tried 1 line per parameter but still i get linker errors.

i've hit a brick wall and no idea where to go from here.

Here is the code that i have so far(its for drawing a simple robotic arm);

#include <windows.h>
#include <gl/gl.h>
#include <gl/glu.h>
#include <gl/glut.h>


static int shoulder = 0, elbow = 0, wrist = 0, finger1 = 0,finger2 = 0, finger3 = 0;

void init(void)
{
    	glClearColor (0.0, 0.0, 0.0, 0.0);
    	glShadeModel (GL_FLAT);
}


void display(void)
{
     	glClear (GL_COLOR_BUFFER_BIT);
     	glPushMatrix();
     	glTranslatef (-1.0, 0.0, 0.0);
     	glRotatef ((GLfloat) shoulder, 0, 90, 1.0);
     	glTranslatef (1.0, 0.0, 0.0);
     	glPushMatrix();
     	glScalef (2.0, 0.4, 1.0);
	 glColor3f(1,1,1);
     	glutSolidCube (1.0);
     	glPopMatrix();

     	glTranslatef (1.0, 0.0, 0.0);
     	glRotatef ((GLfloat) elbow, 0.0, 0.0, 1.0);
     	glTranslatef (1.0, 0.0, 0.0);
     	glPushMatrix();
     	glScalef (2.0, 0.4, 1.0);
	glColor3f(0.9,0.9,0.9);
     	glutSolidCube (1.0);
     	glPopMatrix();

	glTranslatef (1.0, 0.0, 0.0);
     	glRotatef ((GLfloat) wrist, 0.0, 0.0, 1.0);
     	glTranslatef (1.0, 0.0, 0.0);
     	glPushMatrix();
     	glScalef (2.0, 0.4, 1.0);
	glColor3f(0.8,0.8,0.8);
     	glutSolidCube (1);
     	glPopMatrix();

	glPushMatrix();
	glTranslatef (0.5, 0.0, 0.75);
     	glRotatef ((GLfloat) finger1, 0.0, 0.0, 1.0);
     	glTranslatef (1.0, 0.0, 0.0);
    	glPushMatrix();
     	glScalef (2.0, 0.4, 1.0);
	glColor3f(0.8,0.8,0.8);
     	glutWireCube (0.75);
     	glPopMatrix();
	glPopMatrix();

	glPushMatrix();
	glTranslatef (0.5, 0.0, 0.0);
     	glRotatef ((GLfloat)finger2, 0.0, 0.0, 1.0);
     	glTranslatef (1.0, 0.0, 0.0);
     	glPushMatrix();
     	glScalef (2.0, 0.4, 1.0);
	glColor3f(0.8,0.8,0.8);
	glutWireCube (0.75);
	glPopMatrix();
	glPopMatrix();

     	glPushMatrix();
	glTranslatef (0.5, 0.0, -0.75);
     	glRotatef ((GLfloat) finger3, 0.0, 0.0, 1.0);
     	glTranslatef (1.0, 0.0, 0.0);
     	glPushMatrix();
     	glScalef (2.0, 0.4, 1.0);
	glColor3f(0.8,0.8,0.8);
     	glutWireCube (0.75);
     	glPopMatrix();
	glPopMatrix();

     	glPopMatrix();
     	glutSwapBuffers();
}


void reshape (int w, int h)
{
     	glViewport (0, 0, (GLsizei) w, (GLsizei) h);
     	glMatrixMode (GL_PROJECTION);
     	glLoadIdentity ();
     	gluPerspective(65.0, (GLfloat) w/(GLfloat) h, 1.0, 20.0);
     	glMatrixMode(GL_MODELVIEW);
     	glLoadIdentity();
	glTranslatef (0.0, 0.0, -5.0);
}


void keyboard (unsigned char key, int x, int y)
{
	switch (key) {
        	case 's':   /*  s key rotates at shoulder  */
           		shoulder = (shoulder + 5) % 360;
           		glutPostRedisplay();
           		break;
        	case 'S':
           		shoulder = (shoulder - 5) % 360;
           		glutPostRedisplay();
           		break;
        	case 'e':  /*  e key rotates at elbow  */
           		elbow = (elbow + 5) % 360;
           		glutPostRedisplay();
           		break;
        	case 'E':
           		elbow = (elbow - 5) % 360;
           		glutPostRedisplay();
           		break;
		case 'w': /*  w key rotates at wrist  */
			wrist = (wrist + 5) % 360;
			glutPostRedisplay();
			break;
		case 'W':
			wrist = (wrist - 5) % 360;
			glutPostRedisplay();
			break;
		case '1':
			finger1 = (finger1 - 5) % 360;
			glutPostRedisplay();
			break;
		case '2':
			finger2 = (finger2 - 5) % 360;
			glutPostRedisplay();
			break;

		case '3':
			finger3 = (finger3 - 5) % 360;
			glutPostRedisplay();
			break;
        	default:
          		break;
	}
}

int main(int argc, char** argv)
{
	glutInit(&argc, argv);
	glutInitDisplayMode (GLUT_DOUBLE | GLUT_RGB);
	glutInitWindowSize (500, 500);
	glutInitWindowPosition (100, 100);
	glutCreateWindow (argv[0]);
	init ();
	glutDisplayFunc(display);
     	glutReshapeFunc(reshape);
     	glutKeyboardFunc(keyboard);
     	glutMainLoop();
     	return 0;
}

Examples of Errors:

[Linker Error] undefined reference to 'glutinit'
[Linker Error] undefined reference to 'glutmainloop'
[Linker Error] undefined reference to 'glutsolidcube'
[Linker Error] undefined reference to 'glutswapbuffers
[Linker Error] undefined reference to 'glutcreatewindow'

[Aia]

Maybe this will help

[midimatt]

Maybe this will help

Thanks for the reply, i've looked over the site and although it hasnt solved my problem it has made me think that my problem might be a missing library file so i'm gonna investigate that and see if i can get this program to run for me.

Thanks again

EDIT: Found the glut32 lib file i was missing and added that but still getting the same errors as before.

[Colin Mac]

Install the glut devpak
http://www.nigels.com/glt/devpak/

[midimatt]

ALready installed the Devpak, was the first thing i did.

[Colin Mac]

When you create a project did you choose Multimedia > GLUT

This is how to set it up
http://www.zeuscmd.com/tutorials/opengl/02-SettingUpYourEnvironment.php#devc++glut

[midimatt]

No, i created a blank project because i'm using code that has already been created.

Creating it as an openGL project would have only put the parameters in for me and created a .C file with the correct #includes.

I already have the openGL parameters and the #includes in this project.

EDIT:

After looking at the link you gave me, i'm guessing the only thing i'm missing is a custom makefile but heres the problem

A) i've never made a make file before
B) that website doesnt go into much detail on makefiles

[Colin Mac]

I'm not sure what you mean exactly by using code that has already been created but your code compiled for me after I chose glut.

[midimatt]

I wrote in my original post, that i've already writen and compiled the code on a machine at the university using visual studio, i've taken the code home tried to use it on on Dev C++ have been unable to compile,

I've installed the Dev Pak, i've created a blank project and put the code into the blank project.

I've changed the project parameter to include the openGL parameters. which is exactly what happens when you create a glut or openGL project from the multimedia tab.

EDIT: THought to my self maybe i should try and create a glut project, so i have, i've pasted the code in and i'm still getting linker errors

I've been to 4 sites all telling me to do the exact same things, still cant compile after doing those things

EDIT2: i've tried compiling the template code that comes with the glut project, and that also comes up with linker errors.