[Interest] Sequence of events in a double click

[Schimkowitsch Robert]

Hi all,

when you perform a double click on a mouse button (=pressing and releasing the mouse button in fast sequence twice), I have, over many years, always expected this sequence:

ButtonPress
ButtonRelease
ButtonDoublePress
ButtonDoubleRelease

It is consistent with what I get when I trace the window events using Spy++ (on Windows, for context) on a simple application (not my own, since Spy++ crashes when encountering the hooks of a serious Qt application, and I currently don’t have a good replacement tool).

However, in my Qt 6.8.2 application using a window event filter, I receive the following sequence:

ButtonPress
ButtonRelease
ButtonPress
ButtonDoublePress
ButtonDoubleRelease

The extra press confuses me. Is this as it should be?

Kind regards

Robert
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