asked on

vb6 scroll bars windows api no longer works under windows 7

I have been using a class moduel from the website vbAccelerator.com which is fantastic at putting a scroll bar onto a Visual Basic form.
This code no longer works under windows 7 32bit. I have tried running in compatability mode of windows xp.

I have attached a sample project the line where it falls over is AttachMessage Me, m_hWnd, WM_HSCROLL inside the pAttachMessages function. I have only ever done basic api calls but cant even find any info relating to attachmessage

I am wondering if this is easy to fix.
project.zip

CSI-Windows_com

I suspect this may be using window messaging to monitor controls. If so, this would be blocked by a Windows 7 feature known as User Interface Process Isolation (UIPI).

The only way to open it up without disabling UAC is to use AppCompat to allow specific messages to pass.

ASKER CERTIFIED SOLUTION

eemit

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

SOLUTION

Martin Liss

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

Jenny Coulthard

ASKER

Wow, I have to say I love this web-site. I am supporting legacy code and when I came across this problem with running vb code on windows7 I thought I was in trouble, after wasting yesterday I asked the question and overnight I have two solutions both of which work. I am accepting eemits answer as it uses the same vbAccelerator.com code I already have in my projects.
thanks you for providing a working project.
I understand now that I can use the two subclass modules to replace the ssubtmr.dll. And also found the attachmessage sub in these subclass modules.
thank you

Jenny Coulthard

ASKER

excellent response, complete project

Martin Liss

Not even a little taste? ;)

eemit

Thanks purbrick,
I'm glad I was able to help.

Jenny Coulthard

ASKER

lol MartinLiss. Normally I do share the points/love around but today I didnt. I was too excited about the lack of work I needed to do to get exe up and running.

Martin Liss

If eemit didn't mind you could ask for admin assistance, but no big deal.

eemit

OK, but does not have to be fifty fifty :-)

Martin Liss

I don't need 50/50.

Jenny Coulthard

ASKER

OK, so I can ask admin assistance to change to 20/80 but I am actually not sure how to do this.

Martin Liss

I clicked the 'Request attention' link and asked the moderators to help you do it.