CODEWITHSUNDEEP
cmacosopenglgraphicsglut
Eric Thoma
Eric Thoma

Reputation: 6145

How do I set the close operation on a GLUT program written in C? (as in the red button in the top left corner to work)

I'm writing a really simple program using GLUT and C in XCode 4.2.

int main(int argc, char** argv)
{
    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH);
    glutInitWindowSize(640, 480);

    glutCreateWindow("GLUT Program");

    glutDisplayFunc(display);
    glutReshapeFunc(reshape);
    glutIdleFunc(idle);

    glutMainLoop();
    return EXIT_SUCCESS;
}

When the window opens up, I can't close it via the red button in the top left corner (Mac) because it is grayed out. If any Java programming I've done is a model, there should be some function that sets the close operation so that the red exit button works. I also can't seem to find the documentation for the most recent version of GLUT. Whenever I google it I seem to get OpenGL documentation, which makes me a little more confused then I was on the relationship between the two (I thought GLUT was a cross-platform interface to interact with OpenGL).

Upvotes: 8

Views: 2797

Answers (5)

c z
c z

Reputation: 8987

Add a handler for the close button and it will appear:

void winCloseFunc()
{
    glutDestroyWindow(g_windowId);
    exit(0);
}

int main( ... )
{
    ...
    glutWMCloseFunc(winCloseFunc);
    ...
}

Upvotes: 0

Hualin
Hualin

Reputation: 93

well, i encountered this problem now, and i use

Command + Q

to quit the process, it works.

Upvotes: 1

pec27
pec27

Reputation: 21

Using the GLUT bindings for python on OS X, I find passing an event handler to glutWMCloseFunc is enough to give an action (apparently this is deprecated in favour of glutCloseFunc, but not with my version).

Upvotes: 2

user1118321
user1118321

Reputation: 26375

If you want to use the Mac's windowing system to write a native Mac-like application (and you should - your users will thank you!), you should be using NSOpenGLView instead of GLUT. There's some good sample code here.

Upvotes: 1

F'x
F'x

Reputation: 12308

On Mac OS, the window cannot be closed and the application has to be quit instead (sources here).

Upvotes: 3

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