API

On many platforms an alphaTab API object can be used to bootstrap alphaTab within your UI. It takes over all responsibilities of linking your actions to the UI. Namely this object is called AlphaTabApi (Web) or AlphaTabApiBase<> (.net). This page describes all methods, properties and events exposed by this API object.

Name	Summary
Events - Core
errorAll	This event is fired when an error within alphatab occurred.
postRenderFinishedAll	This event is fired when the rendering of the whole music sheet is finished, and all handlers of renderFinished ran.
renderFinishedAll	This event is fired when the rendering of the whole music sheet is finished.
renderStartedAll	This event is fired when the rendering of the whole music sheet is starting.
resizeAll	This event is fired when alphaTab was resized and is about to rerender the music notation.
scoreLoadedAll	This event is fired whenever a new song is loaded.
settingsUpdatedAll	This event is fired when a settings update was requested.
Events - Player
activeBeatsChangedAll	This event is fired when the currently active beats across all tracks change.
beatMouseDownAll	This event is fired whenever a the user presses the mouse button on a beat.
beatMouseMoveAll	This event is fired whenever the user moves the mouse over a beat after the user already pressed the button on a beat.
beatMouseUpAll	This event is fired whenever the user releases the mouse after a mouse press on a beat.
midiEventsPlayedAll	This event is fired when the synthesizer played certain midi events.
midiLoadAll	This event is fired when a Midi file is being loaded.
midiLoadedAll	This event is fired when the Midi file needed for playback was loaded.
noteMouseDownAll	This event is fired whenever a the user presses the mouse button on a note head/number.
noteMouseMoveAll	This event is fired whenever the user moves the mouse over a note after the user already pressed the button on a note.
noteMouseUpAll	This event is fired whenever the user releases the mouse after a mouse press on a note.
playbackRangeChangedAll	This event is fired when the playback range changed.
playedBeatChangedAll	This event is fired when the played beat changed.
playerFinishedAll	This event is fired when the playback of the whole song finished.
playerPositionChangedAll	This event is fired when the current playback position of the song changed.
playerReadyAll	This event is fired when all required data for playback is loaded and ready.
playerStateChangedAll	This event is fired when the playback state changed.
soundFontLoadJavaScript	This event is fired when the SoundFont is being loaded.
soundFontLoadedAll	This event is fired when the SoundFont needed for playback was loaded.
Methods - Core
destroyAll	Destroys the alphaTab control and restores the initial state of the UI.
downloadMidiJavaScript	Generates an SMF1.0 file and downloads it
printJavaScript	Opens a popup window with the rendered music notation for printing.
renderAll	Initiates a re-rendering of the current setup.
renderScoreAll	Initiates a rendering of the given score.
renderTracksAll	Renders the given list of tracks.
texAll	Tells alphaTab to render the given alphaTex.
updateSettingsAll	Applies any changes that were done to the settings object.
Methods - Player
changeTrackMuteAll	Changes the given tracks to be muted or not.
changeTrackSoloAll	Changes the given tracks to be played solo or not.
changeTrackTranspositionPitchAll	Changes the pitch transpose applied to the given tracks.
changeTrackVolumeAll	Changes the volume of the given tracks.
enumerateOutputDevicesAll	Loads and lists the available output devices which can be used by the player.
exportAudioAll	Starts the audio export for the currently loaded song.
getOutputDeviceAll	The currently configured output device if changed via setOutputDevice.
loadAll	Initiates a load of the score using the given data.
loadMidiForScoreAll	Re-creates the midi for the current score and loads it.
loadSoundFontAll	Triggers a load of the soundfont from the given data.
loadSoundFontFromUrlJavaScript	Triggers a load of the soundfont from the given URL.
pauseAll	Pauses the playback of the current song.
playAll	Starts the playback of the current song.
playBeatAll	Triggers the play of the given beat.
playNoteAll	Triggers the play of the given note.
playPauseAll	Toggles between play/pause depending on the current player state.
resetSoundFontsAll	Unloads all presets from previously loaded SoundFonts.
scrollToCursorAll	Initiates a scroll to the cursor.
setOutputDeviceAll	Changes the output device which should be used for playing the audio (player must be enabled).
stopAll	Stops the playback of the current song, and moves the playback position back to the start.
updateSyncPointsAll	Triggers an update of the sync points for the current score after modification within the data model
Properties - Core
boundsLookupAll	The tick cache allowing lookup of midi ticks to beats.
canvasElementAll	The UI container that will hold all rendered results.
containerAll	The UI container that holds the whole alphaTab control.
rendererAll	The score renderer used for rendering the music sheet.
scoreAll	The score holding all information about the song being rendered
settingsAll	The settings that are used for rendering the music notation.
tracksAll	The list of the tracks that are currently rendered.
uiFacadeAll	The UI facade used for interacting with the user interface (like the browser).
Properties - Player
actualPlayerModeAll	The actual player mode which is currently active.
countInVolumeAll	The volume of the count-in metronome ticks.
endTickAll	The total length of the song in midi ticks.
endTimeAll	The total length of the song in milliseconds.
isLoopingAll	Whether the playback should automatically restart after it finished.
isReadyForPlaybackAll	Whether the player is ready for starting the playback.
masterVolumeAll	The current master volume as percentage (0-1).
metronomeVolumeAll	The metronome volume as percentage (0-1).
midiEventsPlayedFilterAll	The midi events which will trigger the midiEventsPlayed event
playbackRangeAll	The range of the song that should be played.
playbackSpeedAll	The current playback speed as percentage
playerAll	The alphaSynth player used for playback.
playerStateAll	The current player state.
tickCacheAll	The tick cache allowing lookup of midi ticks to beats.
tickPositionAll	The position within the song in midi ticks.
timePositionAll	The position within the song in milliseconds