Simple 2D application, having trouble with glutBitmapCharacter - c++

Question

I am trying to simply write anything on the screen. Drawing rectangles is easy enough. I am trying to place a text string sideways superimposed on a "book". It seems very simple and yet...
Just as a note, I tried to take advice from these forums so glDisable(GL_DEPTH_TEST); and glDisable(GL_LIGHTING); are probably not necessary. Additionally, is there a way to enable debugging myself? I am usually a fan of adding cout << "i reached this far yay" << endl; but it doesn't seem to like me when I place it in void Bookshelf()... it gives me a C2381 error ('function' : redefinition; __declspec(noreturn) differs)
main.cpp
#include "bookshelf.h"
void Initialize()
{
glClearColor (1.0, 1.0, 1.0, 0.0 );
glMatrixMode( GL_PROJECTION );
glOrtho(0,899,899,0,1,0);
}
void main( int argc, char *argv[] )
{
glutInit( &argc, argv );
glutInitDisplayMode( GLUT_SINGLE | GLUT_RGB );
glutInitWindowSize( 900, 900 );
glutInitWindowPosition( 510, 100 );
glutCreateWindow("Bookshelf - Ankit Ahuja");
Initialize();
glutDisplayFunc(Bookshelf);
glutMainLoop();
}
bookshelf.h
#include <GL/glut.h>
void Bookshelf()
{
glClear( GL_COLOR_BUFFER_BIT );
glColor3f( 0.0, 0.0, 0.0 );
glBegin( GL_QUADS );
//Code that draws a bookshelf
//Book1
glColor3f( 1.0, 0.25, 0.25 );
glVertex3i(240,70,0.5);
glVertex3i(260,70,0.5);
glVertex3i(260,180,0.5);
glVertex3i(240,180,0.5);
//BookTitle1
glPushMatrix();
glLoadIdentity();
glDisable(GL_DEPTH_TEST);
glRotatef(90f,0.0f,0.0f,0.0f);
glColor3f( 0.0, 1.0, 0.0 );
glDisable(GL_LIGHTING);
glRasterPos3i(100,100,1);
char text[50]="Alphabet Soup is the best guys";
for(int i=0; i<50; i++)
{
glutBitmapCharacter(GLUT_BITMAP_9_BY_15,(int)text[i]);
}
glPopMatrix();
//Book2
glColor3f( 0.8, 0.8, 0.0 );
glVertex2i(270,70);
glVertex2i(290,70);
glVertex2i(290,180);
glVertex2i(270,180);
//More books and shelves
glEnd();
glFlush();
}

Answer 1

You should set-up an orthographic projection by using the glOrtho before displaying your text.
Make sure you correctly push/pop the projection and modelview matrix before writing ur text so you are looking at something like:
glMatrixMode(GL_PROJECTION); //Select projection matrix
glPushMatrix(); //save it
glLoadIdentity();
glMatrixMode(GL_MODELVIEW); //Select modelview matrix
glPushMatrix(); //save it
glLoadIdentity();
// set up ur glOrtho
glOrtho(...);
glutBitmapCharacter(...)
glMatrixMode(GL_PROJECTION);
glPopMatrix(); //Restore your old projection matrix
glMatrixMode(GL_MODELVIEW);
glPopMatrix(); //Restore old modelview matrix