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activex control crashes dialog box

1 reply on 1 page. Most recent reply: Oct 2, 2005 4:27 PM by Torston Cederland

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Torston Cederland

Posts: 2
Nickname: quarters42
Registered: Oct, 2005

activex control crashes dialog box Posted: Oct 1, 2005 4:25 PM
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I've got an activex control (OCX) from LabJack which just lets you access the LabJack hardware. I want to use a non-modal dialog so the dialog can send and receive messages from the app and when the dialog has the control, it gives me an assertion error. I traced into it earlier and I will reply to this post with details of where it goes astray in the mfc internals.

zliminator


Torston Cederland

Posts: 2
Nickname: quarters42
Registered: Oct, 2005

Re: activex control crashes dialog box Posted: Oct 2, 2005 4:27 PM
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It gives an assertion error because when I call ShowWindow()

m_pModeless = new testdlg(this);
m_pModeless->Create();
m_pModeless->ShowWindow(TRUE);

and trace into the code for it, the m_hWnd var is 0.

When I remove the activex control from the dialog the
m_hWnd var is set to something.

Any ideas?

Dan

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