Creating Destroying Objects - Creating Destroying Objects Like hierarchical lists objects represented Longint known object handle simply handle create new object OT New method like this NewOnce have object handle proceed put values get values from object query object information about its structure copy another object put BLOB The data stored object takes certain amount memory within your application When completely object critical release objectrsquos memory calling OT Clear like this OT Clearobject object set zero Clear Once have cleared object OT Clear

Creating and Destroying Objects

Like 4D hierarchical lists, objects are represented by a Longint known as the object handle, or simply handle. You create a new object with the OT New method, like this:

C_LONGINT($object)$object:=OT New

Once you have an object handle, you can then proceed to put values into and get values from the object, query the object for information about its structure, copy it to another object, and put it into a BLOB.

The data stored in an object takes up a certain amount of memory within your application. When you are completely ﬁnished with an object, it is critical that you release the object’s memory by calling OT Clear, like this:

OT Clear($object:) `$object will be set to zero by OT Clear

Once you have cleared an object with OT Clear, you will no longer be able to use its handle.

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Published date: Fri, 14 Jul 2006 17:43:30 GMT → View XML Version

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