Provides details about aspects of an AudioProcessor which have changed. More...

#include <juce_AudioProcessorListener.h>

Public Member Functions
ChangeDetails	withLatencyChanged (bool b) const noexcept
	Indicates that the AudioProcessor's latency has changed.

ChangeDetails	withParameterInfoChanged (bool b) const noexcept
	Indicates that some attributes of the AudioProcessor's parameters have changed.

ChangeDetails	withProgramChanged (bool b) const noexcept
	Indicates that the loaded program has changed.

ChangeDetails	withNonParameterStateChanged (bool b) const noexcept
	Indicates that the plugin state has changed (but not its parameters!).

Static Public Member Functions
static ChangeDetails	getDefaultFlags ()
	Returns the default set of flags that will be used when AudioProcessor::updateHostDisplay() is called with no arguments.

static ChangeDetails	getAllChanged ()

Public Attributes
bool	latencyChanged = false

bool	parameterInfoChanged = false

bool	programChanged = false

bool	nonParameterStateChanged = false

Detailed Description

Provides details about aspects of an AudioProcessor which have changed.

Member Function Documentation

◆ withLatencyChanged()

ChangeDetails AudioProcessorListener::ChangeDetails::withLatencyChanged ( bool b ) const

nodiscardnoexcept

Indicates that the AudioProcessor's latency has changed.

Most of the time, you won't need to use this function directly. AudioProcessor::setLatencySamples() will automatically call AudioProcessor::updateHostDisplay(), indicating that the latency has changed.

See also: latencyChanged

Referenced by getDefaultFlags().

◆ withParameterInfoChanged()

ChangeDetails AudioProcessorListener::ChangeDetails::withParameterInfoChanged ( bool b ) const

nodiscardnoexcept

Indicates that some attributes of the AudioProcessor's parameters have changed.

When this flag is set, the host should rescan the AudioProcessor's parameters, and update its controls to match. This is often used to update the names of a plugin's parameters in the host.

See also: parameterInfoChanged

Referenced by getDefaultFlags().

◆ withProgramChanged()

ChangeDetails AudioProcessorListener::ChangeDetails::withProgramChanged ( bool b ) const

nodiscardnoexcept

Indicates that the loaded program has changed.

When this flag is set, the host should call AudioProcessor::getCurrentProgram() and update any preset list views to display the program that is currently in use.

See also: programChanged

Referenced by getDefaultFlags().

◆ withNonParameterStateChanged()

ChangeDetails AudioProcessorListener::ChangeDetails::withNonParameterStateChanged ( bool b ) const

nodiscardnoexcept

Indicates that the plugin state has changed (but not its parameters!).

An AudioProcessor can call updateHostDisplay with this flag set to notify the host that its state has changed in a way that requires re-saving.

If a host receives a call to audioProcessorChanged with this flag set, it should offer to save the plugin state before taking any actions that might irrevocably destroy the current plugin state, such as closing the project.