| Alert.h | BAlert class definition and support enums |
| AppFileInfo.h | Provides the BAppFileInfo class |
| Application.h | Provides the BApplication class |
| Archivable.h | Provides the BArchivable interface and declares the BArchiver and BUnarchiver classes |
| Autolock.h | Implements a handy locking utility |
| Beep.h | Functions to generate sounds from the computer |
| Bitmap.h | Defines the BBitmap class and global operators and functions for handling bitmaps |
| BitmapStream.h | BBitmapStream class definition |
| BlockCache.h | Implements a mechanism to store and retrieve memory blocks |
| Buffer.h | Defines the buffer_clone_info struct and BBuffer class |
| BufferIO.h | Provides the BBufferIO class |
| Catalog.h | Provides the BCatalog class |
| CheckBox.h | Defines the BCheckBox class |
| Clipboard.h | Provides the BClipboard class |
| Collator.h | Provides the BCollator class |
| ColorControl.h | BColorControl class definition and support enums |
| Control.h | BControl class definition and support enums |
| Country.h | BCountry class definition |
| Cursor.h | Provides the BCursor class |
| DataIO.h | Defines abstract BDataIO and BPositionIO and the derived BMallocIO and BMemoryIO classes |
| Directory.h | Provides the BDirectory class |
| DirectWindow.h | Provides the BDirectWindow class |
| DurationFormat.h | Contains BDurationFormat class, a time interval formatter |
| Entry.h | Provides the BEntry class and entry_ref implementations |
| EntryList.h | Defines the BEntryList class |
| File.h | Provides the BFile class |
| FileGameSound.h | Provides the BFileGameSound class |
| FileInterface.h | Provides BFileInterface abstract class |
| FilePanel.h | Provides the BFilePanel and BRefFilter classes and support enums |
| FindDirectory.h | Provides the find_directory function |
| Flattenable.h | Provides the BFlattenable interface |
| Font.h | BFont class definition, unicode_block class definition, and font-related struct and enum definitions |
| fs_interface.h | Provides an interface for file system modules |
| GameProducer.h | Provides the GameProducer class |
| GridLayout.h | Provides the BGridLayout class |
| GroupLayout.h | Describes the BGroupLayout class |
| GroupLayoutBuilder.h | Provides the BLayoutBuilder::Group<> class |
| Handler.h | Provides the BHandler class |
| IconUtils.h | Vector icon handling utility class |
| InterfaceDefs.h | Defines standard interface definitions for controls |
| Layout.h | Defines the BLayout class |
| LayoutBuilder.h | Defines the BLayoutBuilder templates |
| LayoutItem.h | Describes the BLayoutItem class |
| List.h | Defines the BList class |
| ListItem.h | ListItem class definition |
| ListView.h | ListView class definition |
| Locale.h | Provides the BLocale class, the base class of the Locale Kit |
| LocaleRoster.h | Provides the BLocaleRoster class to access locale data |
| Locker.h | Provides locking class BLocker |
| Looper.h | Provides the BLooper class |
| Message.h | Provides the BMessage class |
| MessageFilter.h | Provides BMessageFilter class |
| MessageQueue.h | Provides the BMessageQueue class |
| Midi2Defs.h | Some definitions to define raw MIDI events |
| MidiConsumer.h | Defines consumer classes for the MIDI Kit |
| MidiEndpoint.h | Defines the Baseclass of all MIDI consumers and producers |
| MidiProducer.h | Defines producer classes for the MIDI Kit |
| MidiRoster.h | Defines the heart of the MIDI Kit: the MIDI Roster |
| Mime.h | Provides C and Haiku-only C++ MIME-type handling functions |
| MimeType.h | Provides the BMimeType class |
| Node.h | Provides the BNode class and node_ref structure |
| NodeInfo.h | Provides the BNodeInfo class |
| NodeMonitor.h | Provides functions and constants for monitoring changes to a node |
| parsedate.h | Date parsing functions |
| Path.h | Provides the BPath class |
| Query.h | Provides the BQuery class |
| Resources.h | Provides the BResources class |
| Screen.h | Defines the BScreen class and support structures |
| Statable.h | Provides the BStatable abstract class |
| StopWatch.h | Provides the BStopWatch class |
| String.h | Defines the BString class and global operators and functions for handling strings |
| SupportDefs.h | Defines basic types and definitions for the Haiku API |
| SymLink.h | Provides the BSymLink class |
| syslog.h | System logging capabilities |
| TextView.h | Provides the BTextView class and associated structs |
| TimeZone.h | Provides the BTimeZone class |
| TLS.h | Functions to use Thread Local Storage |
| TwoDimensionalLayout.h | Defines the BTwoDimensionalLayout class |
| TypeConstants.h | Represents typecodes that are used in various part of the Haiku API |
| UnicodeChar.h | Provides the BUnicodeChar class |
| USB3.h | Interface for the USB module |
| USB_spec.h | General definitions as defined by the USB standard |
| View.h | BView class definition and support data structures |
| Volume.h | Provides the BVolume class |
| VolumeRoster.h | Provides the BVolumeRoster class |