Microsoft DirectX 9.0 SDK Update (October 2004)

EffectsParamEq.Bandwidth Property

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Note: This documentation is preliminary and is subject to change.
How Do I...?

Retrieves and sets the bandwidth, in semitones, of the EffectsParamEq structure.

Definition

Visual Basic .NET Public Property Bandwidth As Single
C# public float Bandwidth { get; set; }
Managed C++ public: __property float get_Bandwidth();
public: __property void set_Bandwidth(float);
JScript .NET public function get Bandwidth() : float
public function set Bandwidth(float);

Property Value

System.Single . Bandwidth, in semitones.

This property is read/write. 

Remarks

Can range from ParamEqEffect.BandwidthMin to ParamEqEffect.BandwidthMax.

The default value is 12.

How Do I...?

Use Effect Parameters

This C# example demonstrates how to use the parameters of an effect object from a SecondaryBuffer object.

The buffer object in this code snippet is assumed to be the SecondaryBuffer from the code in Add Effects to a SecondaryBuffer Object.

              [C#]
              
//Retrieve the effects object and //the effect param sturctures and edit parameters. EchoEffect echo = (EchoEffect)buffer.GetEffects(0); EffectsEcho echo_params = echo.AllParameters; echo_params.LeftDelay = 250.0f; echo_params.RightDelay = 100.0f; echo_params.Feedback = 85.0f; echo_params.PanDelay = 1; echo_params.WetDryMix = 50.0f; ChorusEffect chorus = (ChorusEffect)buffer.GetEffects(1); EffectsChorus chorus_params = chorus.AllParameters; chorus_params.Delay = 15.0f; chorus_params.Depth = ChorusEffect.DepthMax; chorus_params.Phase = ChorusEffect.PhaseNegative90; chorus_params.Waveform = ChorusEffect.WaveSin; chorus_params.WetDryMix = 50.0f; //Set the new parameters and play the buffer. echo.AllParameters = echo_params; chorus.AllParameters = chorus_params; buffer.Play(0,BufferPlayFlags.Default);


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