Section 3

• Q · support for Forall, Exists, etc in GNU C and C++
• Q_ABS · fixed-point math miscellaneous functions/variables
• Q_BT · fixed-point math miscellaneous functions/variables
• Q_CRAWMASK · fixed-point math functions which manipulate the control/sign data bits
• Q_DEBUG · fixed-point math miscellaneous functions/variables
• Q_DFV2BFV · fixed-point math miscellaneous functions/variables
• Q_FRAWMASK · fixed-point math functions which manipulate the fractional data bits
• q_free · initialize and free queue
• Q_GCRAW · fixed-point math functions which manipulate the control/sign data bits
• Q_GCVAL · fixed-point math functions which manipulate the control/sign data bits
• Q_GFABSVAL · fixed-point math functions which manipulate the fractional data bits
• Q_GFRAW · fixed-point math functions which manipulate the fractional data bits
• Q_GFVAL · fixed-point math functions which manipulate the fractional data bits
• Q_GIABSVAL · fixed-point math functions which manipulate the integer data bits
• Q_GIFABSVAL · fixed-point math functions which manipulate the combined integer/fractional data bits
• Q_GIFRAW · fixed-point math functions which manipulate the combined integer/fractional data bits
• Q_GIFVAL · fixed-point math functions which manipulate the combined integer/fractional data bits
• Q_GIRAW · fixed-point math functions which manipulate the integer data bits
• Q_GIVAL · fixed-point math functions which manipulate the integer data bits
• Q_IFRAWMASK · fixed-point math functions which manipulate the combined integer/fractional data bits
• Q_IFVALFMASK · fixed-point math functions which manipulate the combined integer/fractional data bits
• Q_IFVALIMASK · fixed-point math functions which manipulate the combined integer/fractional data bits
• Q_INI · fixed-point math miscellaneous functions/variables
• q_init · initialize and free queue
• Q_IRAWMASK · fixed-point math functions which manipulate the integer data bits
• q_job_seek · wait for and execute jobs from a smolq queue
• Q_LTZ · fixed-point math comparison and logic functions
• Q_MAXNFBITS · fixed-point math miscellaneous functions/variables
• Q_MAXSTRLEN · fixed-point math miscellaneous functions/variables
• Q_NCBITS · fixed-point math miscellaneous functions/variables
• Q_NFBITS · fixed-point math miscellaneous functions/variables
• Q_NFCBITS · fixed-point math miscellaneous functions/variables
• Q_NIBITS · fixed-point math miscellaneous functions/variables
• Q_NORMPREC · fixed-point math functions which operate on two Q numbers
• Q_NTBITS · fixed-point math miscellaneous functions/variables
• Q_OFLOW · fixed-point math comparison and logic functions
• q_pool_create · initialize and destroy thread pools
• q_pool_destroy · initialize and destroy thread pools
• Q_PRECEQ · fixed-point math comparison and logic functions
• q_push · push a job onto a smolq queue
• Q_Q2D · fixed-point math functions which operate on a single Q number
• Q_Q2F · fixed-point math functions which operate on a single Q number
• Q_QABS · fixed-point math functions which operate on a single Q number
• Q_QADDI · fixed-point math functions which apply integers to a Q number
• Q_QADDQ · fixed-point math functions which operate on two Q numbers
• Q_QCLONEQ · fixed-point math functions which operate on two Q numbers
• Q_QCPYVALI · fixed-point math functions which apply integers to a Q number
• Q_QCPYVALQ · fixed-point math functions which operate on two Q numbers
• Q_QDIVI · fixed-point math functions which apply integers to a Q number
• Q_QDIVQ · fixed-point math functions which operate on two Q numbers
• Q_QEQ · fixed-point math comparison and logic functions
• Q_QFRACI · fixed-point math functions which apply integers to a Q number
• Q_QGEQ · fixed-point math comparison and logic functions
• Q_QGTQ · fixed-point math comparison and logic functions
• Q_QLEQ · fixed-point math comparison and logic functions
• Q_QLTQ · fixed-point math comparison and logic functions
• Q_QMAXQ · fixed-point math functions which operate on two Q numbers
• Q_QMINQ · fixed-point math functions which operate on two Q numbers
• Q_QMULI · fixed-point math functions which apply integers to a Q number
• Q_QMULQ · fixed-point math functions which operate on two Q numbers
• Q_QNEQ · fixed-point math comparison and logic functions
• Q_QSUBI · fixed-point math functions which apply integers to a Q number
• Q_QSUBQ · fixed-point math functions which operate on two Q numbers
• Q_RELPREC · fixed-point math comparison and logic functions
• Q_RPSHFT · fixed-point math miscellaneous functions/variables
• Q_SCVAL · fixed-point math functions which manipulate the control/sign data bits
• q_search · search for an entry in a smolq queue
• Q_SFVAL · fixed-point math functions which manipulate the fractional data bits
• Q_SHL · fixed-point math miscellaneous functions/variables
• Q_SHR · fixed-point math miscellaneous functions/variables
• Q_SIFVAL · fixed-point math functions which manipulate the combined integer/fractional data bits
• Q_SIFVALS · fixed-point math functions which manipulate the combined integer/fractional data bits
• Q_SIGNED · fixed-point math comparison and logic functions
• Q_SIGNSHFT · fixed-point math functions which manipulate the control/sign data bits
• Q_SIVAL · fixed-point math functions which manipulate the integer data bits
• Q_SRAWMASK · fixed-point math functions which manipulate the control/sign data bits
• Q_SSIGN · fixed-point math functions which manipulate the control/sign data bits
• Q_TC · fixed-point math miscellaneous functions/variables
• Q_TOSTR · fixed-point math miscellaneous functions/variables
• q_wait · return the next job from the queue, when available
• qb_array_create · Create an array with fixed sized elements.
• qb_array_create_2 · Create an array with fixed sized elements.
• qb_array_elems_per_bin_get · Get the number of elements per bin.
• qb_array_free · Free all the memory used by the array.
• qb_array_grow · Grow the array.
• qb_array_index · Get an element at a particular index.
• qb_array_new_bin_cb_set · Get a callback when a new bin is allocated.
• qb_array_num_bins_get · Get the number of bins used by the array.
• qb_atomic_init
• qb_atomic_int_add · Atomically adds val to the integer pointed to by atomic.
• qb_atomic_int_compare_and_exchange · Compares oldval with the integer pointed to by atomic and if they are equal, atomically exchanges *atomic with newval.
• qb_atomic_int_exchange_and_add · Atomically adds val to the integer pointed to by atomic.
• qb_atomic_int_get · Reads the value of the integer pointed to by atomic.
• qb_atomic_int_set · Sets the value of the integer pointed to by atomic.
• qb_atomic_pointer_compare_and_exchange · Compares oldval with the pointer pointed to by atomic and if they are equal, atomically exchanges *atomic with newval.
• qb_atomic_pointer_get · Reads the value of the pointer pointed to by atomic.
• qb_atomic_pointer_set · Sets the value of the pointer pointed to by atomic.
• qb_hashtable_create · Create an unsorted map based on a hashtable.
• qb_hdb_base_convert
• qb_hdb_create · Create a new database.
• qb_hdb_destroy · Destroy a handle database.
• qb_hdb_handle_create · Create a new handle.
• qb_hdb_handle_destroy · Request the destruction of the object.
• qb_hdb_handle_get · Get the instance associated with this handle and increase it's refcount.
• qb_hdb_handle_get_always · Get the instance associated with this handle and increase it's refcount.
• qb_hdb_handle_put · Put the instance associated with this handle and decrease it's refcount.
• qb_hdb_handle_refcount_get · Get the current refcount.
• qb_hdb_iterator_next · Get the next object and increament it's refcount.
• qb_hdb_iterator_reset · Reset the iterator.
• qb_hdb_nocheck_convert
• qb_ipcc_connect · Create a connection to an IPC service.
• qb_ipcc_context_get · Get the context (set previously).
• qb_ipcc_context_set · Associate a "user" pointer with this connection.
• qb_ipcc_disconnect · Disconnect an IPC connection.
• qb_ipcc_event_recv · Receive an event.
• qb_ipcc_fc_enable_max_set · Set the maximum allowable flowcontrol value.
• qb_ipcc_fd_get · Get the file descriptor to poll.
• qb_ipcc_get_buffer_size · What is the actual buffer size used after the connection.
• qb_ipcc_is_connected · Is the connection connected?
• qb_ipcc_recv · Receive a response.
• qb_ipcc_send · Send a message.
• qb_ipcc_sendv · Send a message (iovec).
• qb_ipcc_sendv_recv · This is a convenience function that simply sends and then recvs.
• qb_ipcc_verify_dgram_max_msg_size · Test kernel dgram socket buffers to verify the largest size up to the max_msg_size value a single msg can be.
• qb_ipcs_connection_auth_set · Set the permissions on and shared memory files so that both processes can read and write to them.
• qb_ipcs_connection_first_get · Get the first connection.
• qb_ipcs_connection_get_buffer_size · Retrieve the connection ipc buffer size.
• qb_ipcs_connection_next_get · Get the next connection.
• qb_ipcs_connection_ref · Increment the connection's reference counter.
• qb_ipcs_connection_service_context_get · Get the context previously set on the service backing this connection.
• qb_ipcs_connection_stats_get · Get the connection statistics.
• qb_ipcs_connection_stats_get_2 · Get (and allocate) the connection statistics.
• qb_ipcs_connection_unref · Decrement the connection's reference counter.
• qb_ipcs_context_get · Get the context (set previously).
• qb_ipcs_context_set · Associate a "user" pointer with this connection.
• qb_ipcs_create · Create a new IPC server.
• qb_ipcs_destroy · Destroy the IPC server.
• qb_ipcs_disconnect · Disconnect from this client.
• qb_ipcs_enforce_buffer_size · Enforce the max buffer size clients must use from the server side.
• qb_ipcs_event_send · Send an asynchronous event message to the client.
• qb_ipcs_event_sendv · Send an asynchronous event message to the client.
• qb_ipcs_poll_handlers_set · Set your poll callbacks.
• qb_ipcs_ref · Increase the reference counter on the service object.
• qb_ipcs_request_rate_limit · Limit the incoming request rate.
• qb_ipcs_response_send · Send a response to a incoming request.
• qb_ipcs_response_sendv · Send a response to a incoming request.
• qb_ipcs_run · run the new IPC server.
• qb_ipcs_service_context_get · Get the context (set previously).
• qb_ipcs_service_context_set · Associate a "user" pointer with this service.
• qb_ipcs_service_id_get · Get the service id related to this connection's service.
• qb_ipcs_stats_get · Get the service statistics.
• qb_ipcs_unref · Decrease the reference counter on the service object.
• qb_list_add · Add this element to the list.
• qb_list_add_tail · Add to the list (but at the end of the list).
• qb_list_del · Delete an entry from the list.
• qb_list_empty · A quick test to see if the list is empty (pointing to it's self).
• qb_list_init · Initialize the list entry.
• qb_list_is_last · Tests whether list is the last entry in list head.
• qb_list_length · Count the number of items in the list.
• qb_list_replace · Replace old entry by new one.
• qb_list_splice · Join two lists.
• qb_list_splice_tail · Join two lists, each list being a queue.
• qb_log_blackbox_print_from_file · Read the blackbox for file and print it out.
• qb_log_blackbox_write_to_file · Write the blackbox to file.
• qb_log_callsite_get · Get or create a callsite at the given position.
• qb_log_callsites_dump · Dump the callsite info to stdout.
• qb_log_callsites_register · If you are using dynamically loadable modules via dlopen() and you load them after qb_log_init() then after you load the module you will need to do the following to get the filters to work in that module:
• qb_log_ctl · Main logging control function.
• qb_log_ctl2 · Extension of main logging control function accepting also strings.
• qb_log_custom_close · Close a custom log target and release its resources.
• qb_log_custom_open · Open a custom log target.
• qb_log_facility2int · Convert string "auth" to equivalent number "LOG_AUTH" etc.
• qb_log_facility2str · Convert number "LOG_AUTH" to equivalent string "auth" etc.
• qb_log_file_close · Close a log file and release its resources.
• qb_log_file_open · Open a log file.
• qb_log_file_reopen · Open a new log file for an existing target.
• qb_log_filter_ctl · This allows you modify the 'tags' and 'targets' callsite fields at runtime.
• qb_log_filter_ctl2 · This extends qb_log_filter_ctl() by been able to provide a high_priority.
• qb_log_filter_fn_set · Instead of using the qb_log_filter_ctl() functions you can apply the filters manually by defining a callback and setting the targets field using qb_bit_set() and qb_bit_clear() like the following below:
• qb_log_fini · Logging system finalization function.
• qb_log_format_set · Set the format specifiers.
• qb_log_from_external_source · This function is to import logs from other code (like libraries) that provide a callback with their logs.
• qb_log_from_external_source_va
• qb_log_init · Init the logging system.
• qb_log_real_ · Internal function: use qb_log() or qb_logt().
• qb_log_real_va_
• qb_log_tags_stringify_fn_set · Set the callback to map the 'tags' bit map to a string.
• qb_log_target_format · Format the callsite and timestamp info according to the format.
• qb_log_target_user_data_get · Retrieve the user data set by either qb_log_custom_open or qb_log_target_user_data_set.
• qb_log_target_user_data_set · Associate user data with this log target.
• qb_log_thread_priority_set · When using threaded logging set the pthread policy and priority.
• qb_log_thread_start · Start the logging pthread.
• qb_loop_create · Create a new main loop.
• qb_loop_destroy
• qb_loop_job_add · Add a job to the mainloop.
• qb_loop_job_del · Delete a job from the mainloop.
• qb_loop_poll_add · Add a poll job to the mainloop.
• qb_loop_poll_del · Delete a poll job.
• qb_loop_poll_low_fds_event_set · Set a callback to receive events on file descriptors getting low.
• qb_loop_poll_mod · Modify a poll job.
• qb_loop_run · Run the main loop.
• qb_loop_signal_add · Add a signal job.
• qb_loop_signal_del · Delete the signal job.
• qb_loop_signal_mod · Modify the signal job.
• qb_loop_stop · Stop the main loop.
• qb_loop_timer_add · Add a timer to the mainloop.
• qb_loop_timer_del · Delete a timer that is still outstanding.
• qb_loop_timer_expire_time_get · Get the expiration time of the timer, as set when the timer was created.
• qb_loop_timer_expire_time_remaining · Get the time remaining before the timer expires.
• qb_loop_timer_is_running · Check to see if a timer that is still outstanding.
• qb_map_count_get · Get the number of items in the map.
• qb_map_destroy · Destroy the map, removes all the items from the map.
• qb_map_foreach · Calls the given function for each of the key/value pairs in the map.
• qb_map_get · Gets the value corresponding to the given key.
• qb_map_iter_create · Create an iterator.
• qb_map_iter_free · free the iterator
• qb_map_iter_next · Get the next item.
• qb_map_notify_add · Add a notifier to the map.
• qb_map_notify_del · Delete a notifier from the map.
• qb_map_notify_del_2 · Delete a notifier from the map (including the userdata).
• qb_map_pref_iter_create · Create a prefix iterator.
• qb_map_put · Inserts a new key and value into a qb_map_t.
• qb_map_rm · Removes a key/value pair from a map.
• qb_rb_chmod · Like 'chmod', it changes the mode of the ringbuffer's resources.
• qb_rb_chown · Like 'chown', it changes the owner and group of the ringbuffer's resources.
• qb_rb_chunk_alloc · Allocate space for a chunk of the given size.
• qb_rb_chunk_commit · Finalize the chunk.
• qb_rb_chunk_peek · Read (without reclaiming) the last chunk.
• qb_rb_chunk_read · Read the oldest chunk into data_out.
• qb_rb_chunk_reclaim · Reclaim the oldest chunk.
• qb_rb_chunk_write · Write a chunk to the ring buffer.
• qb_rb_chunks_used · The total number of chunks in the buffer.
• qb_rb_close · Dereference the ringbuffer and, if we are the last user, destroy it.
• qb_rb_create_from_file · Load the saved ring buffer from file into temporary memory.
• qb_rb_name_get · Get the name of the ringbuffer.
• qb_rb_open · Create the ring buffer with the given type.
• qb_rb_refcount_get · Get the reference count.
• qb_rb_shared_user_data_get · Get a point to user shared data area.
• qb_rb_space_free · The amount of free space in the ring buffer.
• qb_rb_space_used · The total amount of data in the buffer.
• qb_rb_write_to_file · Write the contents of the Ring Buffer to file.
• qb_skiplist_create · Create a sorted map using a skiplist.
• qb_strerror_r · strerror_r replacement.
• qb_thread_lock · Calls either pthread_mutex_lock() or pthread_spin_lock().
• qb_thread_lock_create · Create a new lock of the given type.
• qb_thread_lock_destroy · Calls either pthread_mutex_destro() or pthread_spin_destroy().
• qb_thread_trylock · Calls either pthread_mutex_trylock() or pthread_spin_trylock().
• qb_thread_unlock · Calls either pthread_mutex_unlock() or pthread_spin_unlock.
• qb_timespec_add_ms · Add milliseconds onto the timespec.
• qb_trie_create · Create a sorted map using a Patricia trie or "Radix tree".
• qb_trie_dump · print out the nodes in the trie
• qb_util_nano_current_get · Get the current number of nano secounds produced by the systems incrementing clock (CLOCK_MONOTOMIC if available).
• qb_util_nano_from_epoch_get · Get the time in nano seconds since epoch.
• qb_util_nano_monotonic_hz · Get the frequence of the clock used in qb_util_nano_current_get().
• qb_util_set_log_function · Use this function to output libqb internal log message as you wish.
• qb_util_stopwatch_create · Create a Stopwatch (to time operations).
• qb_util_stopwatch_free · Free the stopwatch.
• qb_util_stopwatch_sec_elapsed_get · Get the elapsed time in seconds.
• qb_util_stopwatch_split · Create a new time split (or lap time).
• qb_util_stopwatch_split_ctl
• qb_util_stopwatch_split_last · Get the last split index to be used by qb_util_stopwatch_time_split_get().
• qb_util_stopwatch_start · Start the stopwatch.
• qb_util_stopwatch_stop · Stop the stopwatch.
• qb_util_stopwatch_time_split_get · Read the time split (in us) from "receint" to "older".
• qb_util_stopwatch_us_elapsed_get · Get the elapsed time in micro seconds.
• qb_util_timespec_from_epoch_get · Get the time in timespec since epoch.
• qbarray.h · This is a dynamic array (it can grow, but without moving memory).
• qbatomic.h · Basic atomic integer and pointer operations.
• qbdefs.h · These are some convience macros and defines.
• qbhdb.h · The handle database is for reference counting objects.
• qbipc_common.h · common types and definitions
• qbipcc.h · Client IPC API.
• qbipcs.h · Server IPC API.
• qblist.h · This is a kernel style list implementation.
• qblog.h · The logging API provides four main parts (basics, filtering, threading & blackbox).
• qbloop.h · Main loop manages timers, jobs and polling sockets.
• qbmap.h · This provides a map interface to a Patricia trie, hashtable or skiplist.
• qbrb.h · This implements a ring buffer that works in "chunks", not bytes.
• qbutil.h · These are some convience functions used throughout libqb.
• qdbm · quick database manager
• qecvt · convert a floating-point number to a string
• qecvt_r · convert a floating-point number to a string
• qfcvt · convert a floating-point number to a string
• qfcvt_r · convert a floating-point number to a string
• qgcvt · convert a floating-point number to a string
• qiflush · get and set curses terminal input options
• qiflush_sp · curses screen-pointer extension
• qio · quick I/O part of InterNetNews library
• QLength · Display macros and functions
• qmath · fixed-point math library based on the “Q” number format
• QMC · library for managing groups of Performance Co-Pilot metrics
• QmcContext · container for a PMAPI context and its metrics
• QmcDesc · container for a metric description
• QmcGroup · container representing a single fetch group of metrics from multiple sources
• QmcIndom · container for a instance domain description
• QmcMetric · container for a metric and all its values
• QmcSource · manages contexts created by all groups
• qsort · sort an array
• qsort_b · sort functions
• qsort_r · sort an array
• qsort_s · sort functions
• Qstl · support for Forall, Exists, etc in GNU C++ using STL
• quadrule · C library of quadrature rules
• query_user_context · determine SELinux context(s) for user sessions
• querylocale · Look up the locale name or version for a specified category
• queue · implementations of linked lists and queues
• queuebase · Base classes for RTP queues.
• queuebase.h · Base classes for RTP queues.
• QueueRTCPManager · Adds generic management of RTCP functions to an RTP data queue.
• quic_svd.hpp
• quick_exit · exits a program quickly, running minimal cleanup
• quorum_context_get · Gets the context variable for a QUORUM instance
• quorum_context_set · Sets the context variable for a QUORUM instance
• quorum_dispatch · Dispatches callbacks from the quorum service
• quorum_fd_get · Dispatches callbacks from the quorum service
• quorum_finalize · Terminate a connection to the quorum service
• quorum_getquorate · Gets the quorate status of the node.
• quorum_initialize · Create a new connection to the Quorum service
• quorum_model_initialize · Create a new connection to the Quorum service
• quorum_overview · Quorum Library Overview
• quorum_trackstart · Enable callbacks notification.
• quorum_trackstop · Disable callbacks notification.
• quota_check_path · Manipulate quotas
• quota_close · Manipulate quotas
• quota_convert · Manipulate quotas
• quota_fsname · Manipulate quotas
• quota_maxid · Manipulate quotas
• quota_off · Manipulate quotas
• quota_on · Manipulate quotas
• quota_open · Manipulate quotas
• quota_qfname · Manipulate quotas
• quota_read · Manipulate quotas
• quota_write_limits · Manipulate quotas
• quota_write_usage · Manipulate quotas
• quotafile · Manipulate quotas
• QWinEvent · Add a window event to the Tcl event queue
• qwt_math.h
• QwtAbstractLegend · Abstract base class for legend widgets.
• QwtAbstractScale · An abstract base class for widgets having a scale.
• QwtAbstractScaleDraw · A abstract base class for drawing scales.
• QwtAbstractSeriesStore · Bridge between QwtSeriesStore and QwtPlotSeriesItem.
• QwtAbstractSlider · An abstract base class for slider widgets with a scale.
• QwtAlphaColorMap · QwtAlphaColorMap varies the alpha value of a color.
• QwtAnalogClock · An analog clock.
• QwtArrayData
• QwtArraySeriesData · Template class for data, that is organized as QVector.
• QwtArrowButton · Arrow Button.
• QwtAutoScale
• qwtchangelog · What's new in Qwt 6.1
• QwtClipper · Some clipping algorithms.
• QwtColorMap · QwtColorMap is used to map values into colors.
• QwtColumnRect · Directed rectangle representing bounding rectangle and orientation of a column.
• QwtColumnSymbol · A drawing primitive for columns.
• QwtCompass · A Compass Widget.
• QwtCompassMagnetNeedle · A magnet needle for compass widgets.
• QwtCompassRose · Abstract base class for a compass rose.
• QwtCompassScaleDraw · A special scale draw made for QwtCompass.
• QwtCompassWindArrow · An indicator for the wind direction.
• QwtCounter · The Counter Widget.
• QwtCPointerData · Data class containing two pointers to memory blocks of doubles.
• QwtCurve
• QwtCurveFitter · Abstract base class for a curve fitter.
• QwtData
• QwtDate · A collection of methods around date/time values.
• QwtDateScaleDraw · A class for drawing datetime scales.
• QwtDateScaleEngine · A scale engine for date/time values.
• QwtDblRange
• QwtDial · QwtDial class provides a rounded range control.
• QwtDialNeedle · Base class for needles that can be used in a QwtDial.
• QwtDialScaleDraw
• QwtDialSimpleNeedle · A needle for dial widgets.
• QwtDiMap
• QwtDoubleInterval
• QwtDoublePoint
• QwtDoublePointData
• QwtDoubleRange
• QwtDoubleRect
• QwtDoubleSize
• QwtDynGridLayout · The QwtDynGridLayout class lays out widgets in a grid, adjusting the number of columns and rows to the current size.
• QwtEventPattern · A collection of event patterns.
• QwtEventPattern_KeyPattern · A pattern for key events.
• QwtEventPattern_MousePattern · A pattern for mouse events.
• QwtGraphic · A paint device for scalable graphics.
• QwtGrid
• qwtinstall · Installing Qwt
• QwtInterval · A class representing an interval.
• QwtIntervalData
• QwtIntervalSample · A sample of the types (x1-x2, y) or (x, y1-y2)
• QwtIntervalSeriesData · Interface for iterating over an array of intervals.
• QwtIntervalSymbol · A drawing primitive for displaying an interval like an error bar.
• QwtKnob · The Knob Widget.
• QwtLegend · The legend widget.
• QwtLegendButton
• QwtLegendData · Attributes of an entry on a legend.
• QwtLegendItem
• QwtLegendItemManager
• QwtLegendLabel · A widget representing something on a QwtLegend.
• qwtlicense · Qwt License, Version 1.0
• QwtLinearColorMap · QwtLinearColorMap builds a color map from color stops.
• QwtLinearScaleEngine · A scale engine for linear scales.
• QwtLog10ScaleEngine
• QwtLogScaleEngine · A scale engine for logarithmic scales.
• QwtLogTransform · Logarithmic transformation.
• QwtMagnifier · QwtMagnifier provides zooming, by magnifying in steps.
• QwtMarker
• QwtMathMLDocument · The QwtMathMLDocument class renders mathematical formulas written in MathML 2.0.
• QwtMathMLTextEngine · Text Engine for the MathML renderer of the Qt solutions package.
• QwtMatrixRasterData · A class representing a matrix of values as raster data.
• QwtMetricsMap
• QwtNullPaintDevice · A null paint device doing nothing.
• QwtNullTransform · Null transformation.
• QwtOHLCSample · Open-High-Low-Close sample used in financial charts.
• QwtPaintBuffer
• QwtPainter · A collection of QPainter workarounds.
• QwtPainterCommand
• QwtPanner · QwtPanner provides panning of a widget.
• QwtPicker · QwtPicker provides selections on a widget.
• QwtPickerClickPointMachine · A state machine for point selections.
• QwtPickerClickRectMachine · A state machine for rectangle selections.
• QwtPickerDragLineMachine · A state machine for line selections.
• QwtPickerDragPointMachine · A state machine for point selections.
• QwtPickerDragRectMachine · A state machine for rectangle selections.
• QwtPickerMachine · A state machine for QwtPicker selections.
• QwtPickerPolygonMachine · A state machine for polygon selections.
• QwtPickerTrackerMachine · A state machine for indicating mouse movements.
• QwtPixelMatrix · A bit field corresponding to the pixels of a rectangle.
• QwtPlainText
• QwtPlainTextEngine · A text engine for plain texts.
• QwtPlot · A 2-D plotting widget.
• QwtPlotAbstractBarChart · Abstract base class for bar chart items.
• QwtPlotAbstractSeriesItem · Base class for plot items representing a series of samples.
• QwtPlotBarChart · QwtPlotBarChart displays a series of a values as bars.
• QwtPlotCanvas · Canvas of a QwtPlot.
• QwtPlotCurve · A plot item, that represents a series of points.
• QwtPlotDict · A dictionary for plot items.
• QwtPlotDirectPainter · Painter object trying to paint incrementally.
• QwtPlotGLCanvas · An alternative canvas for a QwtPlot derived from QGLWidget.
• QwtPlotGrid · A class which draws a coordinate grid.
• QwtPlotHistogram · QwtPlotHistogram represents a series of samples, where an interval is associated with a value ( $y = f([x1,x2])$ ).
• QwtPlotIntervalCurve · QwtPlotIntervalCurve represents a series of samples, where each value is associated with an interval ( $[y1,y2] = f(x)$ ).
• QwtPlotItem · Base class for items on the plot canvas.
• QwtPlotLayout · Layout engine for QwtPlot.
• QwtPlotLegendItem · A class which draws a legend inside the plot canvas.
• QwtPlotMagnifier · QwtPlotMagnifier provides zooming, by magnifying in steps.
• QwtPlotMappedItem
• QwtPlotMarker · A class for drawing markers.
• QwtPlotMultiBarChart · QwtPlotMultiBarChart displays a series of a samples that consist each of a set of values.
• QwtPlotPanner · QwtPlotPanner provides panning of a plot canvas.
• QwtPlotPicker · QwtPlotPicker provides selections on a plot canvas.
• QwtPlotPrintFilter
• QwtPlotRasterItem · A class, which displays raster data.
• QwtPlotRenderer · Renderer for exporting a plot to a document, a printer or anything else, that is supported by QPainter/QPaintDevice.
• QwtPlotRescaler · QwtPlotRescaler takes care of fixed aspect ratios for plot scales.
• QwtPlotScaleItem · A class which draws a scale inside the plot canvas.
• QwtPlotSeriesItem · Base class for plot items representing a series of samples.
• QwtPlotShapeItem · A plot item, which displays any graphical shape, that can be defined by a QPainterPath.
• QwtPlotSpectroCurve · Curve that displays 3D points as dots, where the z coordinate is mapped to a color.
• QwtPlotSpectrogram · A plot item, which displays a spectrogram.
• QwtPlotSvgItem · A plot item, which displays data in Scalable Vector Graphics (SVG) format.
• QwtPlotTextLabel · A plot item, which displays a text label.
• QwtPlotTradingCurve · QwtPlotTradingCurve illustrates movements in the price of a financial instrument over time.
• QwtPlotZoneItem · A plot item, which displays a zone.
• QwtPlotZoomer · QwtPlotZoomer provides stacked zooming for a plot widget.
• QwtPoint3D · QwtPoint3D class defines a 3D point in double coordinates.
• QwtPoint3DSeriesData · Interface for iterating over an array of 3D points.
• QwtPointArrayData · Interface for iterating over two QVector<double> objects.
• QwtPointMapper · A helper class for translating a series of points.
• QwtPointPolar · A point in polar coordinates.
• QwtPointSeriesData · Interface for iterating over an array of points.
• QwtPolygonFData
• QwtPowerTransform · A transformation using pow()
• QwtPushButton
• QwtRasterData · QwtRasterData defines an interface to any type of raster data.
• QwtRect
• QwtRichText
• QwtRichTextEngine · A text engine for Qt rich texts.
• QwtRoundScaleDraw · A class for drawing round scales.
• QwtSamplingThread · A thread collecting samples at regular intervals.
• QwtScale
• QwtScaleArithmetic · Arithmetic including a tolerance.
• QwtScaleDiv · A class representing a scale division.
• QwtScaleDraw · A class for drawing scales.
• QwtScaleEngine · Base class for scale engines.
• QwtScaleIf
• QwtScaleMap · A scale map.
• QwtScaleTransformation
• QwtScaleWidget · A Widget which contains a scale.
• QwtSeriesData · Abstract interface for iterating over samples.
• QwtSeriesStore · Class storing a QwtSeriesData object.
• QwtSetSample · A sample of the types (x1...xn, y) or (x, y1..yn)
• QwtSetSeriesData · Interface for iterating over an array of samples.
• QwtSimpleCompassRose · A simple rose for QwtCompass.
• QwtSlider · The Slider Widget.
• QwtSliderBase
• qwtspec · qwt.spec
• QwtSpline · A class for spline interpolation.
• QwtSplineCurveFitter · A curve fitter using cubic splines.
• QwtSymbol · A class for drawing symbols.
• QwtSyntheticPointData · Synthetic point data.
• QwtSystemClock · QwtSystemClock provides high resolution clock time functions.