Set OLE Request Timeout from C++

Question

I am instantiating a local COM server using CoCreateInstance. Sometimes the application providing the server takes a long time to start. When this happens, Windows pops a dialog box like this:

Server Busy

The action cannot be completed because the other program is busy. Choose 'Switch To' to activate the busy program and correct the problem.

[Switch To...] [Retry] [Cancel]

I have found mention of a Visual Basic property on the Application object, OleRequestPendingTimeout, that can be used to control the time before this dialog comes up. I can't find any good documentation on this or an equivalent that is useful from C++. Can anyone point me in the right direction?

Related: https://stackoverflow.com/questions/9577052/com-server-busy-dialog-on-mfc?rq=1 — Thomas Weller, Jan 20 '23 at 13:28

score 10 · Accepted Answer · answered Nov 11 '08 at 23:03

10

If you're using MFC, we used to do stuff like this:

// prevent the damned "Server Busy" dialog.
AfxOleGetMessageFilter()->EnableBusyDialog(0);
AfxOleGetMessageFilter()->EnableNotRespondingDialog(0);

answered Nov 11 '08 at 23:03

John Dibling

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score 4 · Answer 2 · answered Nov 11 '08 at 22:10

4

Have a look at IMessageFilter and CoRegisterMessageFilter.

answered Nov 11 '08 at 22:10

Sunlight

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This is a good pointer, it turns out MFC does some of the work as demonstrated in John Dibling's answer. – J. Loomis Nov 12 '08 at 00:48

score 3 · Answer 3 · answered Nov 24 '09 at 13:42

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To increase timeout call:

AfxOleGetMessageFilter()->SetMessagePendingDelay(nTimeout);

See details here How to prevent the OLE Server Busy dialog box from appearing during a lengthy COM operation

answered Nov 24 '09 at 13:42

Vasiliy Zverev

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Set OLE Request Timeout from C++

3 Answers3

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