Hi Mark
In the OP, I have posted just a code snippet, in order not to burden the
forum.
In my code, I do use the CheckItem method, and that's working fine.
The issue is, after I change the item check state, the event handler
for EVT_TREELIST_ITEM_CHECKED does not get
triggered, since the change did not originate from a widget.
I need to have the event handler invoked in order to take care of
the state change implications.
Studing the documentation, I undestood that the way to
have the event handler invoked, is to programatically raise the "command
event" (in this case: EVT_TREELIST_ITEM_CHECKED).
Now an event handler has this in the beginning:
Quote ----------
my( $this, $event ) = @_;
$item = $event->GetItem;
Unquote -------
So, since it's looking for an event object, I don't know how to call it,
except for raising EVT_TREELIST_ITEM_CHECKED.
And in order to raise the event programatically, you need
wxEVT_TREELIST_ITEM_CHECKED.
By the way, other command event constants do get exported in wxPerl
(for example wxEVT_COMMAND_CHECKBOX_CLICKED).
How do you propose I should do it?
Many TIA - Helen.
Johan: you are right, of course. It's 5.16.3 with 2.9.4, and not
like I wrote mistakenly in the OP.
when you
----- Original Message -----
From: Mark Dootson
To: wxperl-users@perl.org
Sent: Friday, 24 May, 2013 12:35
Subject: Re: Trying to trigger wxEVT_TREELIST_ITEM_CHECKED programmatically:
not implemented?
Hi Helen,
On 24/05/2013 04:43, Helen Craigman wrote:
Hi wxPerl-users
I am using wxPerl with wxWidgets 2.9.5. I am using TreeListCtrl, and need
to implement triggering EVT_COMMAND_TREELIST_ITEM_CHECKED
programmatically.
In Wx we don't change state of anything by raising events. To change
state in our code, we call the object methods. To change the checked
state of a wxTreeListItem
use Wx qw( :checkbox );
....
$wxtreelistctrl->CheckItem(
$wxtreelistitem,
wxCHK_CHECKED
);
$wxtreelistctrl->CheckItem(
$wxtreelistitem,
wxCHK_UNCHECKED
);
---------------------------
For either wxEVT_TREELIST_ITEM_CHECKED or
wxEVT_COMMAND_TREELIST_ITEM_CHECKED, compilation fails with the error:
------------
"wxEVT_TREELIST_ITEM_CHECKED" is not exported by the Wx module
------------
As noted above, the wxEVT_TREELIST_ITEM_CHECKED constant is not exported
at it has no practical use in user code.
Hope it helps
Mark
