Not drawing the focus rectangle in CTreeCtrl

Posted on 2000-04-27
Last Modified: 2008-03-10
I have a CTreeCtrl and I would like to prevent it from drawing the focus rectangle around an item after that item is selected.  I have tried responding to the NM_CUSTOMDRAW notification, but it seems that if I want to do anything but change the text color, I have to draw the entire item.  Is there an alternative?
Question by:Hat32
  • 4
  • 3

Expert Comment

ID: 2765376
What happens if you track the selections yourself instead of letting the control do it?
after every TVN_SELCHANGED is sent, just unselect the item (so no focus rectangle will be drawn) but keep tracking of what the item was. Then whenever the selection is changed because of a keystroke just set the selection to the appropriate item manually...

Author Comment

ID: 2765808
After the TVN_SELCHANGED is sent, I unselected the item with the statement
m_WillowTree.SetItemState( pNMTreeView->itemNew.hItem, ~TVIS_SELECTED, TVIS_SELECTED );
but the focus rectangle is still drawn.

Expert Comment

ID: 2765861
In SetItemState, for the nState parameter, try putting 0.
Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.


Author Comment

ID: 2765883
I get the same result.

Expert Comment

ID: 2765935
Hmmm... Looks as if the rect is drawn if the tree control has the focus, even if it's told not to show the selected text.
For some reason when I try to run a test program in debug mode usually it doesn't happen, so I didn't notice at first...

One way I found around this is to set the TVS_FULLROWSELECT style, since in this mode it only paints the rect in the selection color and doesn't draw the rect's frame, and so this code really clears it. This can't work if you're using lines, though. Are you?

Accepted Solution

yarond earned 50 total points
ID: 2765983
Or instead of changing the state you can do:
But then you'll have to keep track of the selection and keyboard input yourself.

Author Comment

ID: 2766019
That removed the focus and selection.  I will try this approach, keeping track of the selection and keyboard input myself.  Thanks.

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
C++ assignment question 7 236
typedef std::deque<BYTE> ByteVector is broken in vs2012 23 87
Best book to learn C++ 4 83
FMX TEdit KeyUp handler detecting  "enter" key 4 12
When writing generic code, using template meta-programming techniques, it is sometimes useful to know if a type is convertible to another type. A good example of when this might be is if you are writing diagnostic instrumentation for code to generat…
C++ Properties One feature missing from standard C++ that you will find in many other Object Oriented Programming languages is something called a Property (…
The viewer will learn how to pass data into a function in C++. This is one step further in using functions. Instead of only printing text onto the console, the function will be able to perform calculations with argumentents given by the user.
The viewer will learn how to user default arguments when defining functions. This method of defining functions will be contrasted with the non-default-argument of defining functions.

792 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