IDirect3DDevice9::GetVertexShaderConstantF method (d3d9helper.h)

Gets a floating-point vertex shader constant.

Syntax

HRESULT GetVertexShaderConstantF(
  [in]      UINT  StartRegister,
  [in, out] float *pConstantData,
  [in]      UINT  Vector4fCount
);

Parameters

[in] StartRegister

Type: UINT

Register number that will contain the first constant value.

[in, out] pConstantData

Type: float*

Pointer to an array of constants.

[in] Vector4fCount

Type: UINT

Number of four float vectors in the array of constants.

Return value

Type: HRESULT

If the method succeeds, the return value is D3D_OK. If the method fails, the return value can be D3DERR_INVALIDCALL.

Requirements

See also

IDirect3DDevice9