Solved

Owner Draw CListCtrl changing fonts

Posted on 1997-02-23
1
1,080 Views
Last Modified: 2013-12-03
I wanted to have a CListCtrl that can display items in multiple colors, so I thought I would make it Owner-Draw.

It works fine when it uses the default font it was created with, but if it is changed to a larger font using SetFont() the rcItem member of the DRAWITEMSTRUCT passed to CListCtrl::Drawitem() has the wrong coordinates in it. It seems that the rcItem contains the rectangle for the item if it were drawn with the original (small ) font.

If the listctrl is not owner draw calling Setfont() works okay..

How can I make an owner-draw list control change font correctly? Also, how do I stop garbage pixels appearing when I resize the columns (ie: when a column is enlarged, pixels from the column boundary appear on the border of the column to the right, and remain until the row is redrawn by selecting it with the mouse)
0
Comment
Question by:ceccato
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 1

Accepted Solution

by:
serge010697 earned 100 total points
ID: 1300518
1. You should capture not only WM_DRAWITEM message, but WM_MEASUREITEM too.

2. I've done this using the following virtual function:

BOOL CMyListCtrl::OnNotify(WPARAM wParam, LPARAM lParam, LRESULT* pResult)
{
HWND hHeader = ::GetWindow(m_hWnd, GW_CHILD);
LPNMHDR pHeader = (LPNMHDR)lParam;
if (hHeader && (pHeader->code == HDN_ITEMCHANGINGW || pHeader->code == HDN_ITEMCHANGINGA))
{
::InvalidateRect(m_hHeader, NULL, FALSE);
*pResult = FALSE;
return FALSE;
}
return CListCtrl::OnNotify(wParam, lParam, pResult);
}

0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction: Ownerdraw of the grid button.  A singleton class implentation and usage. Continuing from the fifth article about sudoku.   Open the project in visual studio. Go to the class view – CGridButton should be visible as a class.  R…
Introduction: Dialogs (2) modeless dialog and a worker thread.  Handling data shared between threads.  Recursive functions. Continuing from the tenth article about sudoku.   Last article we worked with a modal dialog to help maintain informat…
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
Excel styles will make formatting consistent and let you apply and change formatting faster. In this tutorial, you'll learn how to use Excel's built-in styles, how to modify styles, and how to create your own. You'll also learn how to use your custo…
Suggested Courses

630 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question