glib Constants — the built-in constants of the glib module
Glib IO Condition Constants Glib Priority Constants Glib Spawn Flag Constants Glib Version Constants
The IO Condition constants are a set of bit-flags that specify a condition to watch for on an event source.
| There is data to read |
| Data can be written (without blocking). |
| There is urgent data to read. |
| Error condition. |
| Hung up (the connection has been broken, usually for pipes and sockets). |
| Invalid request. The file descriptor is not open. |
The Priority constants specify
| Use this for high priority event sources. |
| Use this for default priority event sources. This
priority is used when adding timeout functions with the glib.timeout_add()
function. This priority is also used for events from the X
server. |
| Use this for high priority idle functions. For example, glib.PRIORITY_HIGH_IDLE + 10 is used for resizing operations; and, glib.PRIORITY_HIGH_IDLE + 20, for redrawing operations. (This is done to ensure that any pending resizes are processed before any pending redraws, so that widgets are not redrawn twice unnecessarily.) |
| Use this for default priority idle functions. This
priority is used when adding idle functions with the glib.idle_add()
function. |
| Use this for very low priority background tasks. |
The Spawn Flag constants are a set of bit-flags that can be
passed to the glib.spawn_async()
function.
| the parent's open file descriptors will be inherited by
the child; otherwise all descriptors except stdin/stdout/stderr will be
closed before calling exec() in the child. |
| the child will not be automatically reaped; you must
call waitpid() or handle SIGCHLD
yourself, or the child will become a zombie. |
| argv[0] need not be an absolute
path, it will be looked for in the user's PATH. |
| the child's standard output will be discarded, instead of going to the same location as the parent's standard output. |
| the child's standard error will be discarded. |
| the child will inherit the parent's standard input (by default, the child's standard input is attached to /dev/null). |
| the first element of argv is the
file to execute, while the remaining elements are the actual argument vector
to pass to the file. Normally glib.spawn_async()
uses argv[0] as the file to execute, and passes all
of argv to the child. |
The Version constants specify the version of
Glib used by PyGObject as a 3-tuple containing the major,
minor and patch release numbers.
| A 3-tuple containing (major, minor, patch) release numbers of glib. |
| A 3-tuple containing (major, minor, patch) release numbers of the python bindings. |