OpenGL Texture Loading Problem

[Atomic_Sheep]

Hi guys, I started playing around with OpenGL and initially, I was getting the message box popping up in the LoadGLWidget function call but I changed the type to void over int and that stopped happening... so by the looks of it, the image started to load without a problem. The problem however is that despite no error message box popping up, I see the coloured box, rather than having that box filled with my test image (both can be seen in the attachment. Any ideas as to what I'm doing wrong?

#include "glwidget.h"
 
GLWidget::GLWidget(QWidget *parent) :
    QGLWidget(parent)
{
}
 
void GLWidget::initializeGL()
{
    glEnable(GL_TEXTURE_2D);
    glClearColor(1,1,0.5,1);
 
    glClearDepth(1.0f);
    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LEQUAL);
}
 
//Setup viewport, projection etc...
void GLWidget::resizeGL(int w, int h)
{
 
    if (h == 0)
    {
        h = 1;
    }
}
 
//Draw the Scene
void GLWidget::paintGL() //corresponds to DrawGLScene
{
 
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glLoadIdentity();
 
    //glTranslatef(x, y, z)
 
    //glTranslatef(0.0f,0.0f,-10.0f);
 
    glBindTexture(GL_TEXTURE_2D, texture[0]);
 
    glBegin(GL_QUADS);
        //Bottom Left
        glColor3f(0.5,0.5,0.5);
        glTexCoord2f(0.0f, 0.0f);
        glVertex2f(-1.0f, -1.0f);
 
        //Top Left
        glColor3f(0.2,0.7,0);
        glTexCoord2f(0.0f, 1.0f);
        glVertex2f(-1.0f,1.0f);
 
        //Top Right
        glColor3f(0.9,0.1,0.5);
        glTexCoord2f(1.0f, 1.0f);
        glVertex2f(1.0f,1.0f);
 
        //Bottom Right
        glColor3f(0.6,0.6,0.6);
        glTexCoord2f(1.0f, 0.0f);
        glVertex2f(1.0f,-1.0f);
    glEnd();
 
/*
    glBegin(GL_TRIANGLES);
            glColor3f(0,1,0.7);
            glVertex3f(-1,0,0);
            glColor3f(0,0.1,0.5);
            glVertex3f(1,0,0);
            glColor3f(0.9,0.1,0);
            glVertex3f(0,1,0);
   glEnd();
*/
 
}
 
void GLWidget::LoadGLTexture()
{
    QImage GLFormatImage;
    QImage QFormatImage;
 
    if (!QFormatImage.load("actual path to the file with .bmp format"))
    {
        QMessageBox::information(this, "Error", "Could not load image");
    }
 
    GLFormatImage = QGLWidget::convertToGLFormat(QFormatImage);
    glGenTextures(1, &texture[0]);
    glBindTexture(GL_TEXTURE_2D, texture[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, 3, GLFormatImage.width(), GLFormatImage.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, GLFormatImage.bits());
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}

#include "glwidget.h"

GLWidget::GLWidget(QWidget *parent) :
    QGLWidget(parent)
{
}

void GLWidget::initializeGL()
{
    glEnable(GL_TEXTURE_2D);
    glClearColor(1,1,0.5,1);

    glClearDepth(1.0f);
    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LEQUAL);
}

//Setup viewport, projection etc...
void GLWidget::resizeGL(int w, int h)
{

    if (h == 0)
    {
        h = 1;
    }
}

//Draw the Scene
void GLWidget::paintGL() //corresponds to DrawGLScene
{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glLoadIdentity();

    //glTranslatef(x, y, z)

    //glTranslatef(0.0f,0.0f,-10.0f);

    glBindTexture(GL_TEXTURE_2D, texture[0]);

    glBegin(GL_QUADS);
        //Bottom Left
        glColor3f(0.5,0.5,0.5);
        glTexCoord2f(0.0f, 0.0f);
        glVertex2f(-1.0f, -1.0f);

        //Top Left
        glColor3f(0.2,0.7,0);
        glTexCoord2f(0.0f, 1.0f);
        glVertex2f(-1.0f,1.0f);

        //Top Right
        glColor3f(0.9,0.1,0.5);
        glTexCoord2f(1.0f, 1.0f);
        glVertex2f(1.0f,1.0f);

        //Bottom Right
        glColor3f(0.6,0.6,0.6);
        glTexCoord2f(1.0f, 0.0f);
        glVertex2f(1.0f,-1.0f);
    glEnd();

/*
    glBegin(GL_TRIANGLES);
            glColor3f(0,1,0.7);
            glVertex3f(-1,0,0);
            glColor3f(0,0.1,0.5);
            glVertex3f(1,0,0);
            glColor3f(0.9,0.1,0);
            glVertex3f(0,1,0);
   glEnd();
*/

}

void GLWidget::LoadGLTexture()
{
    QImage GLFormatImage;
    QImage QFormatImage;

    if (!QFormatImage.load("actual path to the file with .bmp format"))
    {
        QMessageBox::information(this, "Error", "Could not load image");
    }

    GLFormatImage = QGLWidget::convertToGLFormat(QFormatImage);
    glGenTextures(1, &texture[0]);
    glBindTexture(GL_TEXTURE_2D, texture[0]);
    glTexImage2D(GL_TEXTURE_2D, 0, 3, GLFormatImage.width(), GLFormatImage.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, GLFormatImage.bits());
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}

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What I want.png
What I get.jpg