Set OLEObject, Set("OLEObject")
This setting
determines whether OLE objects can be created and manipulated in
the application.
Usage
|
SET OLEOBJECT ON | OFF
cOLEObject = SET( "OLEOBJECT" )
|
Whenever you create an object in VFP using
CreateObject(), NewObject(), or AddObject(), FoxPro searches for
a class definition that matches the name of the class you supply.
It searches the FoxPro base classes, class definitions already in
memory, the current program, the CLASSLIB setting, the PROCEDURE
setting, the program stack, and then, finally, the Registry. With
OLEOBJECT set ON (the default and the setting we recommend), OLE
class definitions in the Registry are included in the search
whenever an attempt is made to create an object. With SET
OLEOBJECT OFF, the Windows Registry is not used as the last item
in the search path of the CreateObject(), AddObject() or
NewObject() functions, effectively turning off OLE Automation.
While this lowers the memory overhead needed to run Visual FoxPro
on a workstation, we suspect this overhead isn't as much of a
problem as trying to figure out why OLE Automation doesn't
work.If a mistyped class definition causes the Registry to be
searched, even though the class should have been found within
your application, a small bit of time will certainly be consumed
with this search. However, we think that given how few times this
will occur, the overhead is negligible—you're about to blow up
anyway, right? On the other hand, picture yourself banging your
head bloody against the client's monitor at three in the morning
screaming, "But it worked on my machine!" when this setting gets
toggled off by some rogue routine at your client's site. Whether
or not you intend to use OLE Automation in your application, we
suggest you leave this setting at its default ON setting.This
setting has no effect on general fields, or OLE objects on forms.
OLE support is automatically loaded if a general field is
detected in a table, or if an OLE object is detected while
loading a form.
Back to Table of Contents
Copyright © 2002-2018 by Tamar E. Granor,
Ted Roche, Doug Hennig, and Della Martin. Click for license
.