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Microsoft DirectX 9.0

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




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