glib Constants
glib Constants — the built-in constants of the glib module
Synopsis
Glib IO Condition Constants Glib Priority Constants Glib Spawn Flag Constants Glib User Directory Constants Glib Version Constants
Description
Glib IO Condition 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. |
Glib Priority Constants
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. |
Glib Spawn Flag Constants
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. |
Glib User Directory Constants
The User Directory constants are integer values that are currently used only as arguments to
glib.get_user_special_dir()
function. See function documentation for details.
| the user's Desktop directory |
| the user's Documents directory |
| the user's Downloads directory |
| the user's Music directory |
| the user's Pictures directory |
| the user's shared directory |
| the user's Templates directory |
| the user's Movies directory |
Glib Version Constants
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. |