ImageGear Professional for Windows ActiveX
Event Required for Writing PNG Metadata Items
| ImageGear Professional v18.2 > User Guide > Appendices/General Reference > Non-Image Data Storage > Non-Image Data Structure > PNG Non-Image Data Structure > Event Required for Writing PNG Metadata Items |
| Item Name | Item Id |
|---|---|
| Physical dimension chunk metadata | |
| "XAxis" | 0x70485973 |
| "YAxis" | 0x70485973 |
| "UnitSpecifier" | 0x70485973 |
The rest PNG metadata items can be written using IGMetaDataItemAdd event only.
See also PNG Metadata Item Name and ID constants.