Re: What are map_event and unmap_event?

[Jack Chen <jacks_small_world yahoo com>]

 --- Paul Davis <paul linuxaudiosystems com> wrote: > >So to put it in
plain words what you said was that map_event is
> emittted
> >if the window was first minimized and then brought back to the
> screen.
> >Right?
> 
> its hard to explain this to you without getting into a lot of X
> Window
> concepts. what you have to keep in mind is that a window is a
> software
> abstraction, an object that your code manipulates via an API. at some
> point, the X server decides to change the appearance of the screen by
> making the state of your window(s) actually visible. this is called
> "mapping". until a window is mapped, nothing that you draw on it is
> visible. after its mapped, all drawing is done when handling expose
> events. 
> 
> once a window has been mapped to the screen, it can also be
> unmapped. the typical case is when you hide it use some window
> manager
> decoration or keybinding. the window object has not been destroyed,
> but it is no longer represented on the screen anymore. changes that
> you make to it will make no difference to the screen. this continues
> until the window is mapped again (for example, by de-minimizing the
> window).
> 
> a window may emit any number of map/unmap events over its lifetime,
> depending on how the application and user treat it during that
> lifetime. for many applications, there is one map event at program
> startup and one unmap event at program termination.
> _______________________________________________
> gtk-list mailing list
> gtk-list gnome org
> http://mail.gnome.org/mailman/listinfo/gtk-list 

Thank you. So if I want to understand the deeper functions and events
of GTK, I need to study how the GTK API was created from the X Window
functions, right?

By the way, do you know any source on the internet that documents all
the GTK events and functions? The official GTK website doesn't have a
complete documentation. Or do you suggest any places where there are
people who have such knowledge? Also, is there a book or online
documentation that details how GTK was created from X Window?

Thank you in advance for your help.

Jack

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