void BasicWindow::flip()
    {
        HDC oldDC = wglGetCurrentDC();
        HGLRC oldRC = wglGetCurrentContext();

        wglMakeCurrent(hDC, hRC);

        glLoadIdentity();

        glBindTexture(GL_TEXTURE_2D, texture);

        glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
        glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );

        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, getWidth(), getHeight(), 0, GL_RGBA, GL_UNSIGNED_BYTE, getData());

        glBegin(GL_QUADS);
            glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 0.0f);
            glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 0.0f);
            glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f,-1.0f, 0.0f);
            glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f,-1.0f, 0.0f);
        glEnd();

        SwapBuffers(hDC);

        wglMakeCurrent(oldDC, oldRC);
    }