Multiple instances of a VBX

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#166

From: Bill Mastbrook
Date: Thu, 15 Feb 1996 23:03

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How do you differentiate between different instances of a VBX?

When multiple instances of a control are created, the same HCTL value
is always passed to the main control procedure for all messages.  The
HCTL value is used to generate events with the VBFireEvent function.
So, without a unique HCTL value, how do I generate the events in the
correct instance of the control?  

I have created a winsock VBX (with VC++ 1.5) and if multiple
applications using the VBX are opened, all events generated within the
VBX are passed to the last created instance.  

Also, are there any good references for creating VBX's, OCX's, or
converting VBX's to OCX's?

Thanks

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Path: arc1-ca.pugleaf.net!news.its.com!usenet
From: mastbrook@duff.com (Bill Mastbrook)
Newsgroups: comp.lang.basic.visual.misc,comp.lang.c,comp.lang.c++,comp.os.ms-windows.programmer.controls,comp.os.ms-windows.programmer.misc
Subject: Multiple instances of a VBX
Date: Thu, 15 Feb 1996 23:03:28 GMT
Organization: Information Technology Solutions, Inc.
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