This are the possible returning values from getting an image from the server and the call was successful.
The values represent that the result contains an image, the image has not changed and therefore there is no
image data sent or there is no image for the given contact.
EnumRequestImageResult is an Enumeration
|eIMAGEATTACHED||number||0||The requested image is attached in the result.|
|eIMAGEHASHNOTCHANGED||number||1||The image has not changed according to the given hash and therefore there is no image in the result.|
|eNOIMAGEFOUND||number||2||There is no image fopr the given contact.|