Solved

Catching WM_DRAWITEM

Posted on 1998-07-02
3
888 Views
Last Modified: 2008-03-04
I have a SDI app whose view is a CTreeView.  I want to have owner drawn popup menus.  In order to do this I want to catch the WM_DRAWITEM and WM_MEASUREITEM messages.  These are not offered in class wizard for the view so I put them in by hand.  But as far as I can tell, neither of these messages are sent to the view.  Any suggestions?
0
Comment
Question by:joeslow
[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
  • 2
3 Comments
 
LVL 8

Accepted Solution

by:
trestan earned 50 total points
ID: 1167068
You have to go to class info tab in class wizard and change the message filter comboBox and set the option as window. Then you will find what you want.
0
 

Author Comment

by:joeslow
ID: 1167069
Changing the filter to a Window does show the WM_DRAWITEM and WM_MEASUREITEM messages as choices now.  However, they still aren't being sent to the CTreeView.  Someone told me that those messages never get sent to a view but are "control" specific.
0
 
LVL 8

Expert Comment

by:trestan
ID: 1167070
The follows is imformation from the online manual. I am afraid that these messages can not sent to a CTreeView.

The WM_MEASUREITEM message is sent to the owner window of an owner-drawn button, combo box, list box, list view control, or menu item when the control or menu is created.

WM_MEASUREITEM
idCtl = (UINT) wParam;                // control identifier
lpmis = (LPMEASUREITEMSTRUCT) lParam; // item-size information
*****************************************************************
The WM_DRAWITEM message is sent to the owner window of an owner-drawn button, combo box, list box, or menu when a visual aspect of the button, combo box, list box, or menu has changed.

WM_DRAWITEM
idCtl = (UINT) wParam;             // control identifier
lpdis = (LPDRAWITEMSTRUCT) lParam; // item-drawing information
 

0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Errors will happen. It is a fact of life for the programmer. How and when errors are detected have a great impact on quality and cost of a product. It is better to detect errors at compile time, when possible and practical. Errors that make their wa…
Article by: SunnyDark
This article's goal is to present you with an easy to use XML wrapper for C++ and also present some interesting techniques that you might use with MS C++. The reason I built this class is to ease the pain of using XML files with C++, since there is…
The viewer will learn how to use the return statement in functions in C++. The video will also teach the user how to pass data to a function and have the function return data back for further processing.
The viewer will learn how to clear a vector as well as how to detect empty vectors in C++.

691 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