I have no idea what is wrong with the simple code. The function is for use with python and ctypes.
extern "C" void add_lines(bool antialias,GLdouble coordinates[][2],int array_size,GLdouble w,GLdouble r,GLdouble g, GLdouble b,GLdouble a){
glDisable(GL_TEXTURE_2D);
if (antialias){
glEnable(GL_LINE_SMOOTH); //Enable line smoothing.
}
glColor4d(r,g,b,a);
glLineWidth(w);
glBegin(GL_LINE_STRIP);
for (int x = 0; x < array_size; x++) {
glVertex2d(coordinates[x][0],coordinates[x][1]);
}
glEnd();
std::cout << glGetError();
if (antialias){
glDisable(GL_LINE_SMOOTH); //Disable line smoothing.
}
glEnable(GL_TEXTURE_2D);
}
std::cout << glGetError(); gives out 1281 each time.
Thankyou.