Re: building a gtk sdl widget

[Havoc Pennington <hp redhat com>]

Derethor <derethor thepentagon com> writes: 
>       what is exactly the difference between realize and expose?
>       On which event can I be sure that the window is visible on the screen?
> after configure maybe?
>       what is the meaning of configure, exactly?
>       how can I set the expose_event, called after the event? (like with
> gtk_signal_connect_after)
>       any idea why I get my crash?

realize should create window system (GDK) resources such as
widget->window.
unrealize should destroy what realize created.

you can't draw on a window until you receive the first expose event
from the window system, i.e. the first real expose. synthetic exposes
you create yourself don't count.

configure_event means the window's size or position changed. this
always happens when the window first goes onscreen, but you can't draw
until you get an expose.

Havoc