[Dev-C++] Trouble Compiling OpenGL apps
Open Source C & C++ IDE for Windows
Brought to you by:
claplace
|
From: <RPG...@ao...> - 2001-07-17 05:55:36
|
I read the faq in the built in help about OpenGL, and put these two options in the Project/Further Object files
-lopengl32 -lglut32
I try to compile this source from an OpenGL book, but get many errors. Skip the code if you want... I doubt that's the problem.
-------------------------CODE------------------------
#include <GL/glut.h>
#include <GL/gl.h>
void display(void)
{
/* clear all pixels */
glClear (GL_COLOR_BUFFER_BIT);
/* draw white polygon (rectangle) with corners at
* (0.25, 0.25, 0.0) and (0.75, 0.75, 0.0)
*/
glColor3f (1.0, 1.0, 1.0);
glBegin(GL_POLYGON);
glVertex3f (0.25, 0.25, 0.0);
glVertex3f (0.75, 0.25, 0.0);
glVertex3f (0.75, 0.75, 0.0);
glVertex3f (0.25, 0.75, 0.0);
glEnd();
/* don't wait!
* start processing buffered OpenGL routines
*/
glFlush ();
}
void init (void)
{
/* select clearing (background) color */
glClearColor (0.0, 0.0, 0.0, 0.0);
/* initialize viewing values */
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
}
/*
* Declare initial window size, position, and display mode
* (single buffer and RGBA). Open window with "hello"
* in its title bar. Call initialization routines.
* Register callback function to display graphics.
* Enter main loop and process events.
*/
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize (250, 250);
glutInitWindowPosition (100, 100);
glutCreateWindow ("hello");
init ();
glutDisplayFunc(display);
glutMainLoop();
return 0; /* ISO C requires main to return int. */
}
-------------------------END CODE------------------------
All the errors I get look like this... so no point in pasting them all. Different errors for every gl/glut call made in the program.
c:\my documents\simpleglmain.o(.text+0x19):simpleglmain.c: undefined reference to `_imp__glClear'
c:\my documents\simpleglmain.o(.text+0x36):simpleglmain.c: undefined reference to `_imp__glColor3f'
What am I doing wrong?
|