Declarationproperty ObjUserDataLength[hobj: integer]: integer;
Applications can store custom data using ObjUserData
. ObjUserData contains a pointer to a user buffer with a length specified by TImageEnVect.ObjUserDataLength.
hobj is the ID of the object. You can also specify IEV_NEXT_INSERTED_OBJECT (-1) which refers to the next object to be inserted or IEV_PREVIOUS_INSERTED_OBJECT (-2) for the last object inserted.
Note: The loading, saving and clipboard methods save this field by allocating a buffer when needed. When the object is destroyed the memory used by ObjUserData will be freed (if it has not been reset to nil).