IDirectSound3DBuffer::SetConeAngles

HRESULT SetConeAngles(

DWORD dwInsideConeAngle,

DWORD dwOutsideConeAngle, DWORD dwApply);

Sets the inside and outside angles of the sound projection cone for this sound buffer.

·Returns DS_OK if successful, or DSERR_INVALIDPARAM otherwise.

dwInsideConeAngle and dwOutsideConeAngle

Inside and outside angles of the sound projection cone.

dwApply

Value indicating when the setting should be applied. This value must be one of the following:

DS3D_DEFERRED Settings are not applied until the application calls the IDirectSound3DListener::CommitDeferredSettings method. This allows the application to change several settings and generate a single recalculation.

DS3D_IMMEDIATE Settings are applied immediately, causing the system to recalculate the 3D coordinates for all 3D sound buffers.

Each angle must be in the range of 0 degrees (no cone) to 360 degrees (the full sphere). The default value is 360. For additional information see, Sound Projection Cones.