Okay, thank you for your answer, but there is one thing I am not sure I understand : Let's say for example thant I want to create a rectangle on the screen and be able to move it up and down by pressing CTRL + up / down arrow and be able to rotate it with the mouse wheel. Does this mean that on Linux I just can't ? And does this mean that if I create an application able to react to mouse wheel, I need to code it differently for Windows and for Linux ? Matthieu 2015-05-06 23:55 GMT+02:00 Sean P. DeNigris <sean@clipperadams.com>:
Matthieu Lacaton wrote
Shouldn't I get a MouseWheel event when i use the wheel and a keystroke when I use CTRL + Arrow ?
Yes! But the hack that you discovered is what we have :) It's done well for us given it's simplicity. But it's far from ideal. For instance, IIRC the delta is fixed, so scrolling a lot sends a lot of tiny scrolls instead of more appropriately-sized ones. The keystroke-equivalence differences I think are due to the underlying platform - the meta key for Mac is CMD, so that is what's used. I extended the hack recently to get horizontal scrolling, but it's only implemented for the Mac VM (there is not even corresponding code in the image yet, pending Windows/Linux implementation). If you trap the events, you can see that now it's simulating cmd+alt+ctrl+shift+[up/down/left/right].
----- Cheers, Sean -- View this message in context: http://forum.world.st/MouseWheel-events-tp4824839p4824929.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.