Knowledge Base

PRB: Method Code Not Returned Using Object Reference with GETPEM

Article ID: 195694

Article Last Modified on 12/10/1999

Microsoft Visual FoxPro 6.0 Professional Edition

This article was previously published under Q195694

SYMPTOMS

The GETPEM() function can be used to return the property values and event or method program code for a given object at design-time. Although not documented as being supported at run-time, this function does return property values and event or method code at run-time.

However, when passing an object reference as the first parameter to the GETPEM() function, an empty string is returned when querying for event or method program code at run-time.

RESOLUTION

In order to retrieve the event or method code at run-time using the GETPEM() function, the first parameter must specify the class name rather than a reference to the object. If the class name is not known, the object's Class property can be passed as follows:

   GETPEM(oObject.Class, "Init")

STATUS

This behavior is by design.

MORE INFORMATION

In this context, run-time refers to a compiled Visual FoxPro executable running with VFP6R.DLL, and design-time means running in the Interactive Development Environment (IDE) using VFP6.exe.

Steps to Reproduce Behavior

Run the following code:

   oObject = NEWOBJECT("_form",HOME()+"ffc\_base.vcx")
   cMethodCode = GETPEM(oObject,"Release") && Object Ref = Empty String
   ?LEN(cMethodCode)  && Zero

Note that zero is returned. If the first parameter passed to the GETPEM() function is changed to oObject.Class, a value greater than zero is returned.

Keywords: kboop kbprb kbpending KB195694