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feasible to convert a large .exe to .ocx

Posted on 1998-11-22
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Last Modified: 2013-11-20
I have a rather large MFC GUI exe containing many dialogs and views etc that I have been asked to convert to an ocx. It seems to me that this is not really feasible, that ocx files are more suited to single window uses like a single control etc.
Are major applications ocx files? It there a simple shortcut to convert an existing exe to an ocx? Any tip/advice would be appreciated.
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Question by:rascal
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mikeblas earned 100 total points
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There's no shortcut to such a conversion. OLE Controls have very different runtime environments than EXEs do, and have very different internal architectures because of that. There are some things that just don't translate from one to the other. For example, an OLE Control provides its user interface where its container tells it to while an application shows whatever it wants, when it wants. Further, an OLE control is loaded and discarded by its container on demand, and may be entered on multiple threads from multiple containers. That never happens to an application.

That said, it's completely possible to write an OLE Control, or a set of OLE Controls, that performs the same overall function that an executable program does. You need to start with a clean sheet of paper and design an OLE control, or system of controls, that can be used in the situation the person asking you to do this is envisioning. Maybe you can use some of the logic you've already written for your eexecutable, but you will certainly need to completely reengineer the project and the user interface.

You really need to go back to the person who's aksing you to do this and determine a lot more about their requirements before you proceed.

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