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Author Topic: lazarus bubbling events  (Read 636 times)

BubikolRamios

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lazarus bubbling events
« on: May 18, 2024, 03:20:24 pm »
Borrowed this term from javascript.

TPanel, on top TEdit, both have event OnMouseWhellUp.

Move mouse ower TEdit, roll MouseWhellUp, both events gets executed. Probably goes down to form.

Is that expected and out curiosity, can it be turned off.
lazarus 3.2-fpc-3.2.2-win32/win64

jamie

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Re: lazarus bubbling events
« Reply #1 on: May 18, 2024, 03:49:05 pm »
Yes, that is how it works. MouseWheel messages get sent downwards.

If you want to stop that, then in the top control, let's say the TEDIT here, set the HANDLED:= True in the mouse-wheel event.
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BubikolRamios

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Re: lazarus bubbling events
« Reply #2 on: May 18, 2024, 10:07:41 pm »
Thanks.
lazarus 3.2-fpc-3.2.2-win32/win64

 

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