User forums > General (but related to Code::Blocks)

Strange Behaviour

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Cybrid:
Well , I have this class created to do some basic OpenGL setup tasks, <GL/gl.h> and <GL/glu.h> are included in "glInit.h". Strangely I receive  error: 'GLfloat' undeclared (first use this function) from compiler when trying to build.
 
I've already added -lopengl32 -lglu32 -gdi32 -user32 -kernel32 to "other option" in the linker tab of my project.

This is the code:


--- Code: (cpp) ---#include "glInit.h"
#pragma once

bool glInit::setupGL()
{
    glShadeModel(GL_SMOOTH);
    glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
    glClearDepth(1.0f);
    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LEQUAL);
    glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
    return true;
}

void glInit::changeSize(GLsizei width, GLsizei height)
{
    GLfloat aspectRatio;

    if(height==0){height=1;}

    glViewport(0, 0, width, height);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();

    aspectRatio = (GLfloat)width / (GLfoat)height;  //ERROR IS HERE

    if(width<=height)
    {
        glOrtho(-100.0, 100.0, -100 / aspectRatio, 100.0 / aspectRatio, 1.0, -1.0);
    }
    else
    {
        glOrtho (-100.0 * aspectRatio, 100.0 * aspectRatio, -100.0, 100.0, 1.0, -1.0);
    }
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();
}

--- End code ---

Michael:
Hello,

Did you tried to add <GL/gl.h> and <GL/glu.h> directly? Does it works?

Just a question. Where should GLfloat be defined?

Best wishes,
Michael

Cybrid:
Yes, I've tried to add the headers directly and it didn't work. Responding to your question (I may be wrong) GLfloat is defined in gl.h .

Cybrid:
Any other Idea of what can be?. Maybe a C::B bug?

mandrav:

--- Quote from: Cybrid on February 15, 2006, 10:22:46 am ---Any other Idea of what can be?. Maybe a C::B bug?

--- End quote ---

Post the full build log (enable it first in global compiler options and then rebuild).

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