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Stan R. · Guest

Thanks Gambit for your help so far. I used your code but I don't see the
event being being triggered in the form. When I close the main window I
get an AV (the standard "read of address ..." and it drops me in the
dll's cpp file but doesn't show where/what caused it. If I put a break
point in the callback function it stops there and as soon as I step is
AV's.

My code is just as you gave it, with some minor fixes.

I have both the mainform and the dll projects open together as a project
group. Not sure if this is the best way to work on both at the same time
but it seems to work.

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Update:

Ok got some more info. It seems like CreateWindowHandle and
DestroyWindowHandle are not getting called for some reason. Look in the
docs they seem to have the right signature. CreateWindowHandle isn't
being called, and thus, the window handle in the dll isn't being set so
the message never gets sent (doesn't make it past the IF statement in
the call back.)
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Update:

I put a ShowMessage("CreateWindowHandle"); in that function and when I
start the program it shows up, but my break point doesnt BREAK on the
function (I tried putting a break on the fuctions heading and anywhere
below in its body, but it wont break. I see the blue dots and all, and
the break remains red (it doesn't turn green-yellow, so it's a valid
break point it seems.)

But why is the ShowMessage working but not the lpSetHookWnd(Handle);
right after it (I see the pHookInfo->hWnd as being NULL when I have a
break on the call back function, so it doesn't seem like SetHookWnd (in
the dll) gets called...
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What am I missing here?

Also, I'm using BCB5, on XP SP2, if that help at all.

Thanks for any help with this.

--
Stan