[lazarus] wndproc.....
Marc Weustink
weus at quicknet.nl
Wed Nov 3 17:20:08 EST 1999
At 08:12 03-11-99 -0600, you wrote:
>Can someone help me.
>
>I have set up a TControl wndproc and a TWINCONTROL wndproc and a
TCustomForm wndproc.
>How should I call it? I planned on doing this in the gtkcallback.inc file
inside the callback code
>
>IF (data is TCustomForm) then
> TCustomForm(data).wndproc(MEssage)
>else
>...
>...
>etc.
Nope something like:
if data is TControl then TControl(data).WndProc(Message);
WndProc is virtual so the appropriate WndProc is called automagically.
>but I can't because wndproc is protected. Is this the correct method of
doing this? Should I have a public property that I can use to call the
highest classes wndproc? Do I have to setup the WINDOWCLASS and use it's
lpfnwndproc to call it?
I don't think you can use lpfnwndproc since it is just a procedural pointer
and no method pointer.
I also looked after DefaultHandler but this one is called after dispatch so
you can use it.
maybe yo can use the public
function TControl.Perform
in combination with
property TControl.WindowProc: TWndMethod
perform just calls WindowProc(Message)
Marc
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