removeDeviceNChannel
Remove a DeviceN color channel.
removeDeviceNChannel([in] int channelIdx)
This function removes (sets to zero) one color channel of the DeviceN
image generated by the last call to
convertPageToDeviceNImage
.
This is useful to remove one or more channels before calling
getDeviceNToRGBPicture
.
The channel mask functions, resetDeviceNChannelMask
and
setDeviceNChannelMask
, provide equivalent functionality and are
more efficient.
VB:
rast.convertPageToDeviceNImage(page, dpi)
nChannels = rast.getNumDeviceNChannels()
For i = 0 To nChannels-1
channelName = rast.getDeviceNChannelName(i)
If .... Then
rast.removeDeviceNChannel(i)
End If
Next i
pic = rast.getDeviceNToRGBPicture()
...
rast.clearDeviceNImage()