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ID3DXPRTEngine::SetCallBack method

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Sets a pointer to an optional callback function that computes the percentage of spherical harmonic (SH) computations completed and gives the caller the option of aborting the simulator.

Syntax

HRESULT SetCallBack(
  [in] LPD3DXSHPRTSIMCB pCB,
  [in] FLOAT            Frequency,
  [in] LPVOID           lpUserContext
);

Parameters

pCB [in]

Type: LPD3DXSHPRTSIMCB

Pointer to the LPD3DXSHPRTSIMCB callback function that computes the percentage of SH computations completed. The callback function must be implemented to return S_OK to keep running the simulator. Any other value will abort the simulator.

Frequency [in]

Type: FLOAT

Frequency of callback calls. The inverse of Frequency is approximately the number of times the callback function will be called.

lpUserContext [in]

Type: LPVOID

Pointer to a user-defined value which is passed to the callback function. Typically used by an application to pass a pointer to a data structure that provides context information for the callback function.

Return value

Type: HRESULT

The return value is S_OK.

Requirements

Requirement Value
Header
D3DX9Mesh.h
Library
D3dx9.lib

See also

ID3DXPRTEngine