Gui help

When i enter text into a text box in GUI, I want to acess it load a 3d object accordingly of tat name from a obj.file can anyone tell me how to synchronize the text i have entered in gui so that i can acess it in my program

int main(int argc, char **argv)
{

// setup glut
glutInit(&argc, argv);
glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
glutInitWindowPosition( 50, 50 );
glutInitWindowSize( WIN_WIDTH, WIN_HEIGHT);

//You’ll need a handle for your main window for GLUI
main_window = glutCreateWindow( “OBJ Loader” );
glutDisplayFunc( myGlutDisplay );
glutReshapeFunc(myGlutReshape);
glutMouseFunc( myGlutMouse );

// Initialize my Scene
initScene();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0,500,0,500,-2,50);
glMatrixMode(GL_MODELVIEW);

//Build the GU
glui = GLUI_Master.create_glui( “OBJ Loader GUI”, 0, 600, 50 ); /* name, flags,
x, and y */

/* Two ways…new vs. add */

GLUI_Panel *objPanel = glui->add_panel(“Obj Files”);
objFileNameTextField = glui->add_edittext_to_panel(objPanel, “Filename:”,GLUI_EDITTEXT_TEXT,0,OBJ_TEXTFIELD,textCB);
glui->add_button_to_panel(objPanel, “Load”, LOAD_BUTTON, buttonCB);
glui->add_separator();

GLUI_Panel *projPanel = glui->add_panel(“Projection”);
GLUI_RadioGroup *projGroup = glui->add_radiogroup_to_panel(projPanel, &projType, -1,projCB);
glui->add_radiobutton_to_group(projGroup, “Orthographic”);
glui->add_radiobutton_to_group(projGroup, “Perspective”);
GLUI_Spinner *fovSpinner = glui->add_spinner_to_panel(projPanel, “FOV”, GLUI_SPINNER_INT, &fov, FOV, projCB);
fovSpinner->set_int_limits(0, 90);

GLUI_Panel colorPanel = glui->add_panel(“Color”);
/
These should be done with floats but the speed won’t work */
GLUI_Spinner *redValue = glui->add_spinner_to_panel(colorPanel, “Red”, 2, &red, RED, colorCB);
redValue->set_int_limits(0, 255);
GLUI_Spinner *greenValue = glui->add_spinner_to_panel(colorPanel, “Green”, 2, &green,GREEN, colorCB);
greenValue->set_int_limits(0,255);
GLUI_Spinner *blueValue = glui->add_spinner_to_panel(colorPanel, “Blue”, 2, &blue, BLUE, colorCB);
blueValue->set_int_limits(0, 255);
glui->set_main_gfx_window( main_window );

// We register the idle callback with GLUI, not with GLUT
//GLUI_Master.set_glutIdleFunc( myGlutIdle );
GLUI_Master.set_glutIdleFunc( NULL );
glutMainLoop();
return EXIT_SUCCESS;
}

void textCB(int id)
{

 glui->sync_live();
printf("%s",id);

}
void buttonCB(int control)
{
switch(control)
case LOAD_BUTTON: printf(“loading…”);
// myLoader.LoadObj(“objectFileNameGoesHere”);
//ObjModel myObject = myLoader.ReturnObj();

}

u should learn c++ first