Re: owner draw list box

"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>
Thu, 08 Mar 2007 08:46:31 -0500
<#rqokhYYHHA.3824@TK2MSFTNGP02.phx.gbl> wrote:

You could start by copying the code from CCheckListBox::DrawItem into
your DrawItem. Then you could modify it by calling pDC->SelectObject
with the font you want before drawing.

hi Scott,
i am able to show up both check box along with owner draw text(text
with underline, font change etc) in list box.
But when i try to click on either check box or the text, it is over
writing check box.
Should i call Invalidate() or some method for handling the clicks on
the text

If it is overwriting the check box then it seems like it is drawing the
text at the wrong coordinates. You need to diagnose the problem by
figuring out the exact positions of each drawing element. Add some
TRACE statements so you can figure out what is being drawn where.

The WM_DRAWITEM message is handled first by PreDrawItem, which draws the
check box, then adjusts the rcItem rectangle to where the text should
start, then calls DrawItem with the adjusted rectangle. So analyze
these steps to find out why your code is drawing over the check.

Scott McPhillips [VC++ MVP]

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