Com Object That Has Been Separated From Its Underlying Rcw Cannot Be Used

Legacy Poster

• February 29, 2012 16:08

Good morning, with BarTender 9.3 I am try to terminate an instance of BarTender.Application in C# (.NET 2.0) via

[code]BarTender.Application.Quit(BarTender.BtSaveOptions.btDoNotSaveChanges);[/code]

I am receiving an exception, error message is

[quote]COM object that has been separated from its underlying RCW cannot be used[/quote].

This part of our application runs something like this (in an STA thread):

[code]
bool weAreNotQuitting = true;
bool printLabelNow = false;

BarTender.Application btApp
BarTender.Database btDb;
BarTender.Format btDoc;

btApp = new BarTender.ApplicationClass();
btDoc = btApp.Formats.Open("Labels.btw", false, "");

btDb = btDoc.Databases.GetDatabase(1);

btDoc.Printer = OurPrinter;

while (weAreNotQuitting)
{
btDb.OLEDB.SQLStatement = SelectStatement;
if (printLabelNow == true)
btDoc.PrintOut(false, false);
}

if (btApp != null)
{
btApp.Quit(BarTender.BtSaveOptions.btDoNotSaveChanges);
btApp = null;
}
[/code]

On btApp.Quit(BarTender.BtSaveOptions.btDoNotSaveChanges), we get

[quote]COM object that has been separated from its underlying RCW cannot be used[/quote].

Any ideas from the BarTender gurus?

Thanks in advance, and let me know if you need more info!

0

• 

  Susan Chen

  Moderator

  ★ BarTender Hero ★

  • March 01, 2012 11:22
  Hi, Renaissanz:
  
  It look like you are using ActiveX integrate with Bartender, can you check the COM reference you add on the project? You can reference our white paper http://s3.amazonaws.com/SeagullBarTender/ftp/WhitePapers/WhitePaper_BarTendersActiveXAutomationInterface.pdf for more details.
  
  I sugegst you try to use a simple open format and print program to see if the error happen and add on more functionalities afterwards.
  
  ** You might want to release COM object through System.Runtime.InteropServices.Marshal.ReleaseComObject(btApp) to correctly shutdown Bartender process.
  
  Hope it helps.
  
  
  Thanks!

  0

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