Hello,
How can I stop KDE 4.8.2 from initiate a 'move' of the window, when clicking the inner window with the left mouse button?

Important:
I mean <Left-Click>
I do not mean <ALT><Left-Click> or <META><Left-Click>

Thank you very much for any advice

Reto

with which applications does that happen? The default for left click on inactive windows is activate and raise

No matter which application, the behaviour is the same:
<left-click> in inactive window -> initiate 'move'

Examples:
System Settings
click in the 'white' and the 'move' is initiated.

Dolphin
click in the 'grey' (there is plenty of it ) and the 'move' is initiated.

MyPaint
click somewhere 'grey' for example a miss-click while trying to turn the color-wheel ... and the 'move' is initiated.


Maybe this gives another hint on my 'miss-configuration':
on move: I get something like a target-cross with a rectangle.

Feature of at least Oxygen and Bespin UI styles - not KWin related.
"oxygen-settings" (first tab) or "bespin config" (hacks) will allow you to configure this

it should however only happen if you press, hold & move the cursor

Thank you, THANK YOU!

Brilliant! Even with my bad hint on KWIN, YOU figured it out.

I will tell everyone how quick and precise the KDE-Community is responding to even fuzzy questions!

You all made my WEEK!


Greetings to the great Team! Keep it up!


Reto

Oh, many thanks for the tip , this drag behavior is a pain with Krita and Mypaint using a tablet and made me have bad time since january.
Now it's gone ! happyness
thx Luebking