EchoEffect Class (Microsoft.DirectX.DirectSound)

Represents a Microsoft DirectSound effects object used to set and retrieve effect parameters on a SecondaryBuffer object that supports echo.

Definition

Visual Basic Public Class EchoEffect
    Inherits MarshalByRefObjectLeave Site
    Implements IDisposableLeave Site
C# public class EchoEffect : MarshalByRefObjectLeave Site, IDisposableLeave Site
C++ public ref class EchoEffect : MarshalByRefObjectLeave Site, IDisposableLeave Site
JScript public class EchoEffect extends MarshalByRefObjectLeave Site implements IDisposableLeave Site

Members Table

The following table lists the members exposed by the object.

Events

Event Description
Disposing Occurs when the Dispose method is called or when the EchoEffect object is finalized and collected by the garbage collector of the Microsoft .NET common language runtime.

Fields

Field Description
static (Shared in Visual Basic) FeedbackMax Retrieves the maximum value for the EffectsEcho.Feedback property.
static (Shared in Visual Basic) FeedbackMin Retrieves the minimum value for the EffectsEcho.Feedback property.
static (Shared in Visual Basic) LeftDelayMax Retrieves the maximum value for the EffectsEcho.LeftDelay property.
static (Shared in Visual Basic) LeftDelayMin Retrieves the minimum value for the EffectsEcho.LeftDelay property.
static (Shared in Visual Basic) PanDelayMax Retrieves the maximum value for the EffectsEcho.PanDelay property.
static (Shared in Visual Basic) PanDelayMin Retrieves the minimum value for the EffectsEcho.PanDelay property.
static (Shared in Visual Basic) RightDelayMax Retrieves the maximum value for the EffectsEcho.RightDelay property.
static (Shared in Visual Basic) RightDelayMin Retrieves the minimum value for the EffectsEcho.RightDelay property.
static (Shared in Visual Basic) WetDryMixMax Retrieves the maximum value for the EffectsEcho.WetDryMix property.
static (Shared in Visual Basic) WetDryMixMin Retrieves the minimum value for the EffectsEcho.WetDryMix property.

Methods

Method Description
Dispose Immediately releases the unmanaged resources used by the EchoEffect object.
EchoEffect Initializes a new instance of the EchoEffect class. This method supports the .NET Framework Infrastructure and is not intended to be used directly in your code.
Equals Returns a value that indicates whether the current instance is equal to a specified object.
Finalize Allows the EchoEffect object to free resources before it is destroyed by the garbage collector.
GetHashCode Returns the hash code for the current instance.
GetObjectByValue This member supports the infrastructure for Microsoft DirectX 9.0 for Managed Code and is not intended to be used directly from your code.
static (Shared in Visual Basic) op_Equality Compares the current instance of a class to another instance to determine whether they are the same.
static (Shared in Visual Basic) op_Inequality Compares the current instance of a class to another instance to determine whether they are different.
raise_Disposing Raises the EchoEffect.Disposing event when called from within a derived class.

Properties

Property Description
AllParameters Retrieves or sets echo parameters of a SecondaryBuffer object.
Disposed Gets a value that indicates whether the object is disposed.

Inheritance Hierarchy

Remarks

Obtain this object by calling the GetEffects or GetObjectInPath method of a SecondaryBuffer object that is using the effect.

How Do I...?

Add Effects to a SecondaryBuffer Object

This C# example demonstrates how to add effect objects to a SecondaryBuffer object.


              [C#]
              
//Create and setup the sound device.
Device dev = new Device();
dev.SetCooperativeLevel(this,CooperativeLevel.Normal);

//Create and setup the buffer description.
BufferDescription buffer_desc = new BufferDescription();
buffer_desc.ControlEffects = true; //this has to be true to use effects.
buffer_desc.GlobalFocus = true; //play sound even if application loses focus.

//Create and setup the buffer for playing the sound.
SecondaryBuffer buffer = new SecondaryBuffer(
	@"C:\WINDOWS\Media\ding.wav", 
	buffer_desc, 
	dev);

//Create an array of effects descriptions, 
//set the effect objects to echo and chorus and 
//set it in the buffer.
EffectDescription[] effects = new EffectDescription[2];
effects[0].GuidEffectClass = DSoundHelper.StandardEchoGuid;
effects[1].GuidEffectClass = DSoundHelper.StandardChorusGuid;
buffer.SetEffects(effects);

//Play Buffer.
buffer.Play(0,BufferPlayFlags.Default);


Class Information

Namespace Microsoft.DirectX.DirectSound
Assembly Microsoft.DirectX.DirectSound (microsoft.directx.directsound.dll)
Strong Name Microsoft.DirectX.DirectSound,  Version=1.0.900.0,  Culture=neutral,  PublicKeyToken=d3231b57b74a1492
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