Hi there. I am emulating a 640x480 window onto a 1280x960 canvas, all working fine and perfectly happy to leave this as-is, however I just thought I should say something.
function resize_cb(Ihandle /*ih*/) for twice=1 to 2 do -- -- twice in case X/YHIDDEN change aka re-apply updated drawsize -- integer {w, h} = IupGetIntInt(canvas, "DRAWSIZE") IupSetInt(canvas,"DX",w) IupSetInt(canvas,"DY",h) end for return IUP_DEFAULT end function Prior to the twice loop (which I am still going to need no matter what) I noticed that when I had dragged the scrollbar(s) off the 0-position, then maximised and restored the window, XHIDDEN was working but YHIDDEN was not (as in the scrollbars actually being shown on-screen), which I assume is because XHIDDEN is updated by the set of DY, but the latter is not setting its own YHIDDEN properly. I managed to replicate the problem on XHIDDEN instead by (removing the twice loop and) swapping the two set lines. Note that everything works fine when the scrollbar thumbs are in the 0-position. You can run an online version at http://phix.x10.mx/p2js/scroller.htm just so you can see roughly what my demo is trying to do, but note that is not actually using any of your code (whereas the desktop version of that same demo does), does not have any scrollbar handling at all yet (so no such glitch), plus it needs a manual max/restore when first run. Also it is probably easier to translate that JavaScript code to C than the Phix code it came from, and obviously you can ignore (or take a peek) at the other six files it includes. _______________________________________________ Iup-users mailing list Iup-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/iup-users