IDirect3DDevice9::GetVertexShaderConstantB Method

Gets a Boolean vertex shader constant.

Syntax

HRESULT GetVertexShaderConstantB(      

    UINT StartRegister,
    BOOL *pConstantData,
    UINT BoolCount
);

Parameters

StartRegister

[in] Register number that will contain the first constant value.

pConstantData

[in, out] Pointer to an array of constants.

BoolCount

[in] Number of Boolean values in the array of constants.

Return Value

If the method succeeds, the return value is D3D_OK.

If the method fails, the return value can be

D3DERR_INVALIDCALL

The method call is invalid. For example, a method's parameter may have an invalid value.