Added by Mark Allen over 6 years ago
For example, I have a Canon raw file "test.cr2",the code "cout<<“artist： ”<< exifData["Exif.Image.Artist"]<<endl;" is executed， it throws exception "value not set". How to know whether the value of corresponding key exists,and to avoid throwing exception.
Use ExifData::findKey() as shown in the addmoddel example.
-ahu.