NAME

cgGetFirstStructParameter - get the first child parameter from a struct parameter

SYNOPSIS

  #include <Cg/cg.h>

  CGparameter cgGetFirstStructParameter( CGparameter param );

PARAMETERS

param

Specifies the struct parameter. This parameter must be of type CG_STRUCT (returned by cgGetParameterType).

RETURN VALUES

Returns a handle to the first member parameter.

Returns NULL if param is not a struct or if some other error occurs.

DESCRIPTION

cgGetFirstStructParameter returns the first member parameter of a struct parameter. The rest of the members may be retrieved from the first member by iterating with cgGetNextParameter.

EXAMPLES

to-be-written

ERRORS

CG_INVALID_PARAM_HANDLE_ERROR is generated if param is not a valid parameter.

CG_INVALID_PARAMETER_TYPE_ERROR is generated if param is not a struct parameter.

HISTORY

cgGetFirstStructParameter was introduced in Cg 1.1.

SEE ALSO

cgGetNextParameter, cgGetFirstParameter