# Part II. API Reference

Table of Contents

File Operations
  GFile — File and Directory Handling
  GFileAttribute — Key-Value Paired File Attributes
  GFileInfo — File Information and Attributes
  GFileEnumerator — Enumerated Files Routines
  GIOError — Error helper functions
  GMountOperation — Object used for authentication and user interaction
File System Monitoring
  GFileMonitor — File Monitor
File-related Utilities
  GFilenameCompleter — Filename Completer
Asynchronous I/O
  GCancellable — Thread-safe Operation Cancellation Stack
  GAsyncResult — Asynchronous Function Results
  GTask — Cancellable synchronous or asynchronous task and result
  GIOScheduler — I/O Scheduler
  GSimpleAsyncResult — Simple asynchronous results implementation
Data conversion
  GConverter — Data conversion interface
  GCharsetConverter — Convert between charsets
  GZlibCompressor — Zlib compressor
  GZlibDecompressor — Zlib decompressor
Streaming I/O
  GSeekable — Stream seeking interface
  GInputStream — Base class for implementing streaming input
  GOutputStream — Base class for implementing streaming output
  GIOStream — Base class for implementing read/write streams
  GSimpleIOStream — A wrapper around an input and an output stream.
  GFileInputStream — File input streaming operations
  GFileOutputStream — File output streaming operations
  GFileIOStream — File read and write streaming operations
  GFileDescriptorBased — Interface for file descriptor based IO
  GFilterInputStream — Filter Input Stream
  GFilterOutputStream — Filter Output Stream
  GMemoryInputStream — Streaming input operations on memory chunks
  GMemoryOutputStream — Streaming output operations on memory chunks
  GBufferedInputStream — Buffered Input Stream
  GBufferedOutputStream — Buffered Output Stream
  GDataInputStream — Data Input Stream
  GDataOutputStream — Data Output Stream
  GUnixInputStream — Streaming input operations for UNIX file descriptors
  GUnixOutputStream — Streaming output operations for UNIX file descriptors
  GConverterInputStream — Converter Input Stream
  GConverterOutputStream — Converter Output Stream
  GPollableInputStream — Interface for pollable input streams
  GPollableOutputStream — Interface for pollable output streams
  gpollableutils — Utilities for pollable streams
File types and applications
  GContentType — Platform-specific content typing
  GAppInfo — Application information and launch contexts
  GAppInfoMonitor — Monitor application information for changes
  GDesktopAppInfo — Application information from desktop files
Volumes and Drives
  GVolumeMonitor — Volume Monitor
  GVolume — Volume management
  GMount — Mount management
  GDrive — Drive management
  Unix Mounts — UNIX mounts
Icons
  GIcon — Interface for icons
  GFileIcon — Icons pointing to an image file
  GBytesIcon — An icon stored in memory as a GBytes
  GLoadableIcon — Loadable Icons
  GThemedIcon — Icon theming support
  GEmblemedIcon — Icon with emblems
  GEmblem — An object for emblems
Failable Initialization
  GInitable — Failable object initialization interface
  GAsyncInitable — Asynchronously failable object initialization interface
Subprocesses
  GSubprocess — Child processes
  GSubprocess Launcher — Environment options for launching a child process
Low-level network support
  GSocket — Low-level socket object
  GDatagramBased — Low-level datagram communications interface
  GInetAddress — An IPv4/IPv6 address
  GInetAddressMask — An IPv4/IPv6 address mask
  GSocketAddress — Abstract base class representing endpoints for socket communication
  GInetSocketAddress — Internet GSocketAddress
  GUnixSocketAddress — UNIX GSocketAddress
  GNativeSocketAddress — Native GSocketAddress
  GSocketControlMessage — A GSocket control message
  GUnixFDList — An object containing a set of UNIX file descriptors
  GUnixFDMessage — A GSocketControlMessage containing a GUnixFDList
  GCredentials — An object containing credentials
  GUnixCredentialsMessage — A GSocketControlMessage containing credentials
  GProxy — Interface for proxy handling
  GProxyAddress — An internet address with proxy information
  gnetworking.h — System networking includes
High-level network functionallity
  GSocketClient — Helper for connecting to a network service
  GSocketConnection — A socket connection
  GUnixConnection — A UNIX domain GSocketConnection
  GTcpConnection — A TCP GSocketConnection
  GTcpWrapperConnection — Wrapper for non-GSocketConnection-based, GSocket-based GIOStreams
  GSocketListener — Helper for accepting network client connections
  GSocketService — Make it easy to implement a network service
  GThreadedSocketService — A threaded GSocketService
  GNetworkMonitor — Network status monitor
TLS (SSL) support
  TLS Overview — TLS (aka SSL) support for GSocketConnection
  GTlsCertificate — TLS certificate
  GTlsConnection — TLS connection type
  GTlsClientConnection — TLS client-side connection
  GTlsServerConnection — TLS server-side connection
  GDtlsConnection — DTLS connection type
  GDtlsClientConnection — DTLS client-side connection
  GDtlsServerConnection — DTLS server-side connection
  GTlsBackend — TLS backend implementation
  GTlsDatabase — TLS database type
  GTlsFileDatabase — TLS file based database type
  GTlsInteraction — Interaction with the user during TLS operations.
  GTlsPassword — TLS Passwords for prompting
DNS resolution
  GResolver — Asynchronous and cancellable DNS resolver
  GProxyResolver — Asynchronous and cancellable network proxy resolver
  GSimpleProxyResolver — Simple proxy resolver implementation
  GSocketConnectable — Interface for potential socket endpoints
  GSocketAddressEnumerator — Enumerator for socket addresses
  GProxyAddressEnumerator — Proxy wrapper enumerator for socket addresses
  GNetworkAddress — A GSocketConnectable for resolving hostnames
  GNetworkService — A GSocketConnectable for resolving SRV records
  GSrvTarget — DNS SRV record target
Low-level D-Bus Support
  D-Bus Utilities — Various utilities related to D-Bus
  D-Bus Addresses — D-Bus connection endpoints
  D-Bus Introspection Data — Node and interface description data structures
  GDBusError — Mapping D-Bus errors to and from GError
  GDBusMessage — D-Bus Message
  GDBusConnection — D-Bus Connections
  GDBusMethodInvocation — Object for handling remote calls
  GDBusServer — Helper for accepting connections
  GDBusAuthObserver — Object used for authenticating connections
High-level D-Bus Support
  Owning Bus Names — Simple API for owning bus names
  Watching Bus Names — Simple API for watching bus names
  GDBusInterface — Base type for D-Bus interfaces
  GDBusInterfaceSkeleton — Service-side D-Bus interface
  GDBusProxy — Client-side D-Bus interface proxy
  GDBusObject — Base type for D-Bus objects
  GDBusObjectSkeleton — Service-side D-Bus object
  GDBusObjectProxy — Client-side D-Bus object
  GDBusObjectManager — Base type for D-Bus object managers
  GDBusObjectManagerServer — Service-side object manager
  GDBusObjectManagerClient — Client-side object manager
Settings
  GSettings — High-level API for application settings
  GSettingsBackend — Interface for settings backend implementations
  GSettingsSchema, GSettingsSchemaSource — Introspecting and controlling the loading of GSettings schemas
Resources
  GResource — Resource framework
Permissions
  GPermission — An object representing the permission to perform a certain action
  GSimplePermission — A GPermission that doesn't change value
Data Models
  GListModel — An interface describing a dynamic list of objects
  GListStore — A simple implementation of GListModel
Application support
  GApplication — Core application class
  GApplicationCommandLine — A command-line invocation of an application
  GActionGroup — A group of actions
  GActionMap — Interface for action containers
  GSimpleActionGroup — A simple GActionGroup implementation
  GAction — An action interface
  GSimpleAction — A simple GAction implementation
  GPropertyAction — A GAction reflecting a GObject property
  GRemoteActionGroup — A GActionGroup that interacts with other processes
  GActionGroup exporter — Export GActionGroups on D-Bus
  GDBusActionGroup — A D-Bus GActionGroup implementation
  GMemoryMonitor — Memory usage monitor
  GMenuModel — An abstract class representing the contents of a menu
  GMenu — A simple implementation of GMenuModel
  GMenuModel exporter — Export GMenuModels on D-Bus
  GDBusMenuModel — A D-Bus GMenuModel implementation
  GNotification — User Notifications (pop up messages)
Extending GIO
  GVfs — Virtual File System
  GIOModule — Loadable GIO Modules
  Extension Points — Extension Points
GIO Tools
  gio-querymodules — GIO module cache creation
  gsettings — GSettings configuration tool
  glib-compile-schemas — GSettings schema compiler
  glib-compile-resources — GLib resource compiler
  gdbus — Tool for working with D-Bus objects
  gdbus-codegen — D-Bus code and documentation generator
  gresource — GResource tool
  gapplication — D-Bus application launcher
  gio — GIO commandline tool
GIO Testing
  GTestDBus — D-Bus testing helper

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