nFactor

Value that indicates the factor to be applied in the operation specified in the lFlags parameter. This parameter is used only if lFlags is FILLLUT_EXPONENTIAL, FILLLUT_LOGARITHMIC or FILLLUT_SIGMOID. If FILLLUT_EXPONENTIAL or FILLLUT_SIGMOID is set in lFlags, this parameter value can be any integer (+/-). If FILLLUT_LOGARITHMIC is set in lFlags, this parameter value should be >= 0. If nFactor = 0, the lookup table will be filled linearly.