[PyQt] the mechanism behind qt signal and slot
Algis Kabaila
akabaila at pcug.org.au
Sun Sep 19 07:35:32 BST 2010
On Sunday 19 September 2010 12:17:54 Von wrote:
> Hi,
> There are three Objects related to one signal to slot event.
> 1, the signal generator
> 2,the slot trigger
> 3,qtObject who connect these two together.
>
> I am wondering how things happening behind the scene.
> Where does the signal first fire and how it passed to the slot?
> What's the responsibility of qtObject?
>
> Best regards,
> Von
Signal - Slot is a high level mechanism, which serves well in a majority of
programs. For deeper, lower lever information, you may like to have a look at
Mark Summerfield's "Rapid GUI Programming with Python and Qt", Chapter 10 p303
"Events, the Clipboard, and Drag and Drop".
HTH,
Al.
--
OldAl
akabaila at pcug.org.au
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