Gets the value of a parameter. 
- Parameters
- 
  
    | pMaterial | Pointer to a material instance. |  | parameterIndex | Index of the parameter |  | argIndex | Argument index of the parameter. |  | pValue | Pointer to a buffer to receive non-integer parameter data. |  
 
- Returns
- The value of integer or poitner parameters, otherwise returns 0 on success.