ImageGear Professional for Windows ActiveX
Metadata Structure
| ImageGear Professional v18.2 > User Guide > Using ImageGear > Working with Non-Image Data > Metadata Structure |
Metadata can either be a collection of simple data-values, or can consist of a hierarchy of data-values. Graphically, the options are as follows:
As ImageGear reads through the image-file, it will call your IGMetaDataItemRead Event Handler for each simple value and for each group-item. The sequence of events in the case of the two examples shown above would be:
| Simple Collection | Hierarchy |
|---|---|
|
IGMetaDataItemRead (Value 1) IGMetaDataItemRead (Value 2) IGMetaDataItemRead (Value 3) IGMetaDataItemRead (Value 4) IGMetaDataItemRead (Value 5) |
IGMetaDataItemRead (Value 1) IGMetaDataItemRead (Value 2)
IGMetaDataItemRead (Value 3) |