Solved

Marshal.ReleaseComObject   use in VB.Net

Posted on 2009-04-08
2
883 Views
Last Modified: 2012-05-06
I am trying to use this:
While xxxxxx <> 0
    System.Runtime.InteropServices.Marshal.ReleaseComObject(xxxxxx)

I am trying to execute this statement just before I exit a COM class.  Is xxxxxx the Com class name?  Can I release it when I am still in it?

Can you provide a while loop where xxxxxx = the com clas name and is the only COM component

 

0
Comment
Question by:garyinmiami2003
2 Comments
 
LVL 75

Accepted Solution

by:
käµfm³d   👽 earned 500 total points
ID: 24100646
Unless I am missing something, xxxxxx is a variable holding a reference to your COM object. When in your While loop, you are not "in" the COM. Your COM object exists regardless of your loop. Your loop is saying "keep trying to release (ReleaseComObject) this object until the variable xxxxxx points to 0 and not to a COM object."
0
 

Author Comment

by:garyinmiami2003
ID: 24102156
I would like to clarify a little

Suppose there is a COM Class in a class library and it has been installed on your pc.  The method called in the class begins

Public Function Broker(ByVal extensionData As thirdparty..IFaExtensionData)

(    all kinds of code)


System.Runtime.InteropServices.Marshal.ReleaseComObject(extensionData)

end Function

My question is:  Is this necessary?  Is this the correct way to use it, if it is necessary?






                                       
0

Featured Post

Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Creating an analog clock UserControl seems fairly straight forward.  It is, after all, essentially just a circle with several lines in it!  Two common approaches for rendering an analog clock typically involve either manually calculating points with…
Many of us here at EE write code. Many of us write exceptional code; just as many of us write exception-prone code. As we all should know, exceptions are a mechanism for handling errors which are typically out of our control. From database errors, t…
Internet Business Fax to Email Made Easy - With eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, fr…
In a recent question (https://www.experts-exchange.com/questions/28997919/Pagination-in-Adobe-Acrobat.html) here at Experts Exchange, a member asked how to add page numbers to a PDF file using Adobe Acrobat XI Pro. This short video Micro Tutorial sh…

805 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question