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Article #4827

Re: Ownerdrawn combo box problem

#4827
From: JD
Date: Fri, 25 Nov 2005 23:19
19 lines
1558 bytes
Martin Golm <golm@gmx.de> wrote:
>
> Okay, here's a "working" example for the problem, i.e. it
> demonstrates that something's wrong with the combo box.

The problem is with how you create it.

>  cb = CreateWindow("COMBOBOX", "", style, 2, 2, 100, 25, Handle, 0, 0, 0);

You passed in a height of 25 which is only enough for the
drop down list to be drawn with a height of one pixel. This
is the cause because there is never enough room for an item
to be drawn so the only value that you'll ever see is -1.

Increase the nHeight parameter to 100 (actually should be
the desired dropdown count * item height).

~ JD
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