[Lazarus] Where are the manuals?

[YanChengyuan]

Hello,

Is there a reason why the default exception dialog has a cancel 
button to kill the application ?

We often use an exception to signal wrong entry of data or so, 
because it stops all further processing.

If the user then uses the cancel button, the program is simply 
ended, which is not what we (or better: the users) want.
And I imagine many others use this technique.

I have overridden the OnException handler of TApplication, 
so it's no longer a problem, but I was curious as to why this
is done like this by default ?

Michael.