getDeviceNChannelCMYK
Get the CMYK color of a DeviceN color channel.
getDeviceNChannelCMYK([in] int channelIdx, [out, retval] DWORD *cmyk)
This function returns the CMYK value for the specified channel
generated by the last call to
convertPageToDeviceNImage
.
The returned value is a 32-bit integer, with one byte per CMYK
component: 0xCCMMYYKK
.
VB:
rast.convertPageToDeviceNImage(page, dpi)
nChannels = rast.getNumDeviceNChannels()
For i = 0 To nChannels-1
channelName = rast.getDeviceNChannelName(i)
channelCMYK = rast.getDeviceNChannelCMYK(i)
pic = rast.getDeviceNPicture(i)
' each channel has an 8-bit grayscale bitmap, similar to what
' is returned by convertPageToPicture in imageGray mode
...
Next i
rast.clearDeviceNImage()