Dilwyn Jones wrote: > This seems to work with any size of window, haven't tried many sizes though. > Should work with an Easyptr menu too, though not tried that yet. Only run it > in BASIC job 0 - intend to try it as an SBASIC job and compiled at some > point. Only tried it in QPC2 3.34beta3 high colour 1440x900 - would be handy > if it could be tried on other systems to see how it works (or not).
This mechanism only works on my "recent" pointer environments where background I/O is enabled. It might always work with a 0x0-sized window, I guess. Another method to globally get the current mouse position is what I've described yesterday: con_linkage = PEEK_L(!;$C4) mouse_x = PEEK_W(con_linkage + $3c) mouse_y = PEEK_W(con_linkage + $3c) > Lines 160 to 170 summon the pointer (would be interesting to see if using a > small transparent or 0x0 pointer can be used, just so that the pointer is > not visible in this program's window. Of course. > Line 200 does the doings, checking if the pointer is at the bottom pixel of > the screen. Pr%(15) is the absolute pointer y co-ordinate, while SCR_YLIM-1 > is the lowest pixel on the screen. Since it is hard to position the pointer > exactly on the bottom line it might be better to do something like IF > pr%(15) > (SCR_YLIM-4) to allow it to have a small zone instead of a one > pixel line. Actually until (I think) SMSQ/E 3.10 it was completely *impossible* to position the pointer exactly at the bottom of the screen. I could only allow this once I had implemented vertical sprite clipping. > One thing I noticed is that with some screen edges the pointer can't > actually get to the last pixel, probably just depends on the pointer size > and origin. For example, the right of the screen. In that case you'd have to > check if it's within that number of pixels of the edge. Yes, I didn't do horizontal sprite clipping for some reason. Was probably too difficult to retro-fit. Marcel _______________________________________________ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
