[comp.windows.ms] To Window Gurus - Child Window inputs

c_leong@vaxa.cc.uwa.oz.au (07/08/90)

Dear Window Gurus,

Is there a way of filtering what an Edit Child window will echo. My problem
is that when the Edit Child window has input focus, all key input is thus
echoed in the Child window, such that keys like ENTER results in a fullstop
character being displayed. Is there away of selecting what will be displayed
by the Child window.

                                                Thanks
                                                        Clement

goodearl@world.std.com (Robert D Goodearl) (07/08/90)

In article <1990Jul8.150639.1941@vaxa.cc.uwa.oz.au>
 c_leong@vaxa.cc.uwa.oz.au writes:
>
>Is there a way of filtering what an Edit Child window will echo.

Yes, you need to sub-class the window procedure for the edit field.
I don't have the references in front of me, but I know that Petzold has
an example in his book.  Basically, you write a window procedure that
handles all of the messages before passing the desired ones on to
the window procedure you are sub-classing.  Off hand, I don't remember
if you can do this for a single instance of the window type, or if
you have to handle all windows of the class.  Perhaps someone else
in netland remembers or has Petzold at hand.

Bob Goodearl -- goodearl@world.std.com