Instance Method

setHistogramBlackIn:BlackOut:WhiteIn:WhiteOut:Gamma:forChannel:fromParm:atTime:

Sets the values in a histogram parameter group.

Required.

Declaration

- (BOOL)setHistogramBlackIn:(double)blackIn BlackOut:(double)blackOut WhiteIn:(double)whiteIn WhiteOut:(double)whiteOut Gamma:(double)gamma forChannel:(FxHistogramChannel)channel fromParm:(UInt32)parmId atTime:(double)time;

Parameters

blackIn

The new black in level value.

blackOut

The new black out level value.

whiteIn

The new white in level value.

whiteOut

The new white out level value.

gamma

The new gamma value.

channel

Specified channel for new histogram values (RGB: 0, Red : 1, Green: 2, Blue: 3, Alpha: 4).

parmId

Parameter identifier assigned upon creation.

time

Specified time, expressed in canonical frames, to set the parameter values.

Return Value

YES if the values is successfully set; otherwise NO if the parameter cannot be found.

Discussion

Depending on the host application, time may be relative to the start of the timeline or to the start of the clip. See Timebase Type.