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# Qtopia Classes

These are the public classes for Qtopia application development.

Accessory | Allows applet plugins to add themselves to the Q menu
AlarmServer | Allows alarms to be scheduled and unscheduled
AppLnk | Represents an application available on the system
AppLnkSet | Set of AppLnk objects
Calendar | Programmers with an easy to calculate and get information about dates, months and years
Categories | Database that groups categories and maps ids to names
CategoryGroup | Group of categories
CategoryMenu | Aids in filtering records or files by Category
CategorySelect | Allows users to select Categories with a combobox interface
Config | For saving application configuration state
DateBookDB | Used to access event information in the Qtopia database
DeviceButton | Represents a physical user mappable button on a Qtopia device
DeviceButtonManager | Manages device button mappings
DocLnk | Represents loaded document references
DocLnkSet | Set of DocLnk objects
DocPropertiesDialog | Allows the user to examine attributes associated with a AppLnk object
DocPropertiesWidget | Controls for modifying an AppLnks properties
FileManager | Assists with AppLnk input/output
FileSelector | Allows the user to select DocLnk objects
FileSystem | Describes a single mount point
FontDatabase | Information about available fonts
Global | Application-wide global functions
ImageSelector | Allows the user to select from a collection of images
ImageSelectorDialog | Presents the ImageSelector widget as a dialog. It allows the user to select from a collection of images
Ir | Implements basic support for sending objects over an infrared communication link
LocationCombo | Displays a list of available storage locations
MediaPlayerDecoder | Abstract base class for Qtopia MediaPlayer decoder plugins
MediaPlayerDecoder_1_6 | Extension to the MediaPlayerDecoder class for Qtopia MediaPlayer decoder plugins
MediaRecorderEncoder | Abstract base class for Qtopia MediaRecorder encoder plugins
MenuButton | Pushbutton with a menu
MimeType | MIME type information
Node | Single element in an XML structure defined by XmlHandler
PluginLoader | Simplifies plugin loading and allows plugins to be enabled/disabled
QCopEnvelope | Encapsulates and sends QCop messages over QCopChannels
QDL | General utility functions for use with Qtopia Data Linking
QDLClient | Set of links and communication with a data source
QDLHeartBeat | Automates the sending of a heart beat to clients
QDLLink | Encapsulates the data of a link
QDLWidgetClient | QDLClient that interfaces with a widget
QEucJpCodec | Conversion to and from EUC-JP character sets
QJisCodec | Conversion to and from JIS character sets
QJpUnicodeConv | Implementation support for QJisCodec, QSjisCodec, and QEucJpCodec
QLibrary | Wrapper for handling shared libraries
QPEApplication | Implements various system services that are available to all Qtopia applications
QPEDateEdit | Compact widget for selecting a date
QPEDatePicker | Allows a date to be selected from a calendar view
QPEDateTimeEdit | Compact widget for selecting a date and time
QPEMessageBox | Some standard message boxes
QPEStyle | Implements the default Qtopia widget style
QPETimeEdit | Compact widget for selecting a time
QProcess | Used to start external programs and to communicate with them
QSjisCodec | Conversion to and from Shift-JIS
QUuid | Defines a Universally Unique Identifier (UUID)
Resource | Access to named resources
Service | Allows applications to provide services for other applications to use
ServiceRequest | Allows applications to request services from other applications
Sound | Plays WAVE sound files and can invoke the audible alarm
StorageInfo | Describes the disks mounted on the file system
TimeZoneSelector | Allows users to configure their time zone information
XmlHandler | XML document structure holder