ON_EN_KILLFOCUS called multiple times

Question

I am using a CEdit control. And I have assigned an event handler for ON_EN_KILLFOCUS message. It gets called correctly. But the problem is that, when ever, I close the dialog box, this event handler gets called four times. How can I prevent this?

Answer 1

Why try to prevent it? Just make sure your handler ignores the ones that don't matter -

Answer 2

Just ran into similar issue and solved by separating to different handlers.

I was using:

ON_EN_KILLFOCUS(IDE_THRESHOLD, OnKillFocusOnEdit)
ON_EN_KILLFOCUS(IDE_AUTODENY_THRESHOLD, OnKillFocusOnEdit)

OnKillFocusOnEdit will receive two messages every time either of these two edits lose focus.

Now by changing to following, each function receives only one message as expected:

ON_EN_KILLFOCUS(IDE_THRESHOLD, OnKillFocusOnEdit)
ON_EN_KILLFOCUS(IDE_AUTODENY_THRESHOLD, OnKillFocusOnAutoDenyEdit)