showing the full content of ImageType in DCMTK

Question

I'm trying to read a number of Siemens DICOM images with DCMTK, some of which are mosaic images. I'm looking for a quick way to find those.

What I can see with mosaic images is that this is specified in the ImageType tag, e.g.

$ dcmdump ${im0} | grep ImageType
(0008,0008) CS [ORIGINAL\PRIMARY\ASL\NONE\ND\NORM\MOSAIC] #  40, 7 ImageType

Most of the tags are easily read with findAndGetOFString() (or similar for floats etc), but if I do

tmpdata->findAndGetOFString(DCM_ImageType, tmpstring);
std::cout << "image type: " << tmpstring << "\n";           

for DcmDataset* tmpdata and OFString tmpstring, then the content of tmpstring is only ORIGINAL so the rest of the value is never printed.

In dcmdump it is printed, but there the value of DCM_ImageType never seems to be stored in a string, which I do need it to be.

Would there be a similar command to findAndGetOFString() for 'code strings'? Maybe I'm missing something obvious!