cgGetParameterBaseType
Keywords: cgGetParameterBaseType, NVIDIA, NVIDIA Cg Toolkit, Cg Toolkit, Shader, Shader Programming, GPU Shader Programming, GPU Program

> ## Name

> cgGetParameterBaseType - get a program parameter's base type

> ## Synopsis

>     #include <Cg/cg.h>

>     CGtype cgGetParameterBaseType( CGparameter param );

> ## Parameters

> param
>   The parameter.

> ## Return Values

> Returns the base type enumerant of param.

> Returns CG_UNKNOWN_TYPE if an error occurs.

> ## Description

> cgGetParameterBaseType allows the application to retrieve the base type of a parameter.

> If param is of a numeric type (scalar, vector, or matrix), the scalar enumerant corresponding to param's type will be returned. For example, if param is of type CG_FLOAT4x3, cgGetParameterBaseType will return CG_FLOAT.

> If param is an array, the base type of the array elements will be returned.

> If param is a structure, its type-specific enumerant will be returned, as per cgGetParameterNamedType.

> Otherwise, param's type enumerant will be returned.

> ## Examples

> to-be-written

> ## Errors

> CG_INVALID_PARAM_HANDLE_ERROR is generated if param is not a valid parameter.

> ## History

> cgGetParameterBaseType was introduced in Cg 1.4.

> ## See Also

> cgGetParameterType, cgGetParameterNamedType, cgGetType, cgGetTypeString, cgGetParameterClass