how to subclass in vc++.net 2002

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Z.K. - 03 Jul 2005 05:28 GMT

I was wondering if someone could tell me how or point me to an
appropriate web page that will show me how to subclass a control in
vc++.net 2002. What I want to do is to be able to pop up a dialog box
when double clicking on a edit box. I tried using the OnLButtonDblClk,
but it does not work when double clicking on the edit box though it does
work when double clicking on the form itself.

Z.K.

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Steve Alpert - 03 Jul 2005 21:23 GMT

> I was wondering if someone could tell me how or point me to an
> appropriate web page that will show me how to subclass a control in
[quoted text clipped - 4 lines]
>
> Z.K.

There are lots of resources that will tell you how to do this. The high level
scheme is:

1. Use SetWindowLongPtr to replace the current wndproc by one of your own
design. (Save the return as OldProc)
2. In your procedure, set up a switch on the message and look for the
appropriate doubleclick message and pass every other message to OldProc.

/steveA

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Steve Alpert
my email Fgrir_Nycreg @ vqk.pbz is encrypted with ROT13 (www.rot13.org) and spaces

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Z.K. - 04 Jul 2005 03:58 GMT

lots of resources, well, not that I could find. Most were about how to
subclass in visual C++ 6, which seems to be a bit different than in
dot.net. It was fairly easy in VC++ 6, but since visual studio.net no
longer has a class wizard or not one that is as useful I am having
trouble figuring how to do it. Oh well, thanks anyway. I guess I'll
have to buy a book and may that will tell me.

Z.K.

>> I was wondering if someone could tell me how or point me to an
>> appropriate web page that will show me how to subclass a control in
[quoted text clipped - 14 lines]
>
> /steveA

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how to subclass in vc++.net 2002

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