writeDeviceNToRGBBitmap
Convert a DeviceN image to RGB and write to an image file.
writeDeviceNToRGBBitmap([in] int format, [in] BSTR fileName)
This function converts the DeviceN bitmap generated by the last call
to
convertPageToDeviceNImage to RGB, and then writes it to an
image file.
This function is very similar to getDeviceNToRGBBitmap, except
that it writes the image to disk, rather then returning an in-memory
bitmap.
The format and fileName arguments are the
same as for writePageBitmap.
By default, this function will generate the same image as
writePageBitmap in imageDevNToRGB mode. The
difference is that individual color channels can be removed with
removeDeviceNChannel.
C#:
rast.convertPageToDeviceNImage(page, dpi);
int nChannels = rast.getNumDeviceNChannels();
for (int i = 0; i < nChannels; ++i) {
string channelName = rast.getDeviceNChannelName(i);
if (....) {
rast.removeDeviceNChannel(i);
}
}
rast.writeDeviceNToRGBBitmap(rast.imageFilePNG, "out.png");
rast.clearDeviceNImage()