// Oprogramowanie Roman Ryltsov
What’s new in this build?
In continuation to recently posted “Smart ATL/WTL combo box and list view classes to cast and optionally manage typed control item data”, list box and tree view classes aware of typed item control data.
Correct Identity is a beautiful addon for Mozilla Thunderbird, the major problem is that Dennis Verspuij has not been having time or desire to keep it up to date and the goody became incompatible with the email client starting version 1.5.
To extend addon’s life a bit it is possible to adjust compatibility information so that the same addon, as it is, could be recognized by Thunderbird version 1.5.
To do this, it is required to locate addon’s RDF file, I have it in:
$(SystemDrive):\Documents and Settings\$(UserName)\Application Data\Thunderbird\Profiles\$(ProfileName)\extensions\{47ef7cc0-2201-11da-8cd6-0800200c9a66}\install.rdf
This is a text file in XML format, openable by text editor, it contains text:
< RDF:Description RDF:about="rdf:#$dZX88"
em:id=”{3550f703-e582-4d05-9a08-453d09bdfdc6}”
em:minVersion=”1.0″
em:maxVersion=”1.4″ / >
which needs to e replaced with, for example:
< RDF:Description RDF:about="rdf:#$dZX88"
em:id=”{3550f703-e582-4d05-9a08-453d09bdfdc6}”
em:minVersion=”1.0″
em:original-maxVersion=”1.4″
em:maxVersion=”1.5″ / >
and after Thunderbird 1.5 restart it will recognize and start the addon. It seems the addon works with Thunderbird 1.5, no problems so far.
Inspired by the post on Yahoo’s WTL group (actually, I have been going to post on this topic for a couple of weeks already).
Standard Windows controls (including common controls) that have multiple items (list box, combo box, list view, tree view etc.) have an option to attach user defined value of type DWORD_PTR (LPARAM) to each item. This is quite sufficient when using controls, however type cast to and from DWORD_PTR is required with most control item data operations.
CAiComboBoxT and CAiListViewT classes templates redefine GetItemData/SetItemData methods to perform automatic type casts. An optional template class CAiListControlDataTraitsT does even more: it manages per-item definted item data class in contained CAtlList collection and attached a pointer to item data class to each control item.
The classes may be used as follows:
CAiComboBoxT < CComboBoxItemData* > m_ComboBox;
CAiListViewT < CListViewItemData, CAiListControlDataTraitsT > m_ListView;
m_ComboBox is a combo box window class (CComboBox descendant) with CComboBoxItemData pointer defined as control item data.
m_ListView is a list view class (CListViewCtrl descendant) with CListViewItemData defined as control item data. CListViewItemData instances are managed by control class using CAtlList collection (and a position in the collection is actually casted to DWORD_PTR and set as lower level control item data).
An update is inspired by necessity to strip DS_FIXEDSYS dialog style which Visual Studio adds to the dialog template once it is modified in resource editor.
What’s new in this build?
The idea is not new, to say the least, the interested ones may check this topic at codeguru.com. This sample demonstrate a most simple (and straightforward) method how to do the task and is basically a demo for a simple custom control, which is based on existing control.
While debugging, obtaining call stack at a certain [problematic] point of execution, such as especially deadlock condition or on assert, is an invaluable help. Debugger shows it, however it is possible to get the call stack programmatically and even more: having program database along with the executable it is even possible to resolve symbols and source code position. All this programmatically, without debugger running!
