glib.MainContextan object representing a set of event sources to be handled
in a glib.MainLoop.Synopsisglib.MainContextglib.MainContextiterationmay_blockpendingAncestry+-- glib.MainContext
DescriptionA glib.MainContext
represents a set of event sources that can be run in a single thread. File
descriptors (plain files, pipes or sockets) and timeouts are the standard
event sources for GTK and PyGTK though
others can be added. Each event source is assigned a priority. The default
priority, glib.PRIORITY_DEFAULT, is 0. Values less
than 0 denote higher priorities. Values greater than 0 denote lower
priorities. Events from high priority sources are always processed before
events from lower priority sources. Single iterations of a glib.MainContext
can be run with the iteration()
method.Constructorglib.MainContextReturns :a new glib.MainContext
object.Creates a new glib.MainContext
object.Methodsglib.MainContext.iterationiterationmay_block :if TRUE the call may block
waiting for an event.Returns :TRUE if events were
dispatched.The iteration() method runs a single
iteration. This involves:checking to see if any associated event sources are ready
to be processed;then if no events sources are ready and
may_block is TRUE, waiting for a
source to become ready;and finally, dispatching the highest priority events
sources that are readyNote that even when may_block is
TRUE, it is still possible for
iteration() to return FALSE,
since the the wait may be interrupted for other reasons than an event source
becoming ready.glib.MainContext.pendingpendingReturns :TRUE if events are
pending.The pending() method checks if any
associated sources have pending events.