Methods > Callbacks and delegates > CallbackSoundPlaybackStatusChangedSet method

Remarks

Sets the function of the CallbackSoundPlaybackStatusChanged callback delegate which notifies about changes of the playback status.

For further details about callback delegates see the How to synchronize the container application with the API tutorial.

Syntax

[Visual Basic]

Public Function CallbackSoundPlaybackStatusChangedSet (

function as CallbackSoundPlaybackStatusChanged

) as enumErrorCodes

[C#]

public enumErrorCodes CallbackSoundPlaybackStatusChangedSet (

CallbackSoundPlaybackStatusChanged function

);

[C++]

public: enumErrorCodes CallbackSoundPlaybackStatusChangedSet (

CallbackSoundPlaybackStatusChanged function

);

Parameter	Description

function	Callback function

when using the API from Unmanaged C++ through COM interaction, where the client application is totally unaware about .NET delegates, you should use the "Ptr" version of the method which allows passing the pointer to the callback function:

[Unmanaged C++]

enumErrorCodes CallbackSoundPlaybackStatusChangedSetPtr (

(UINT_PTR) functionPointer

);

Parameter

Description

functionPointer

Pointer to the callback function.

See the Adding the API to an unmanaged Visual C++ project tutorial for details about usage of the "Ptr" version of these methods.

Return value

Value	Meaning

Negative value	An error occurred. Check the LastError property value in order to see the last error.
enumErrorCodes.ERR_NOERROR (0)	The method call was successful.