Hi Frank, Scott, et al... > Date: Mon, 23 Feb 2004 01:27:20 +0000 > From: Frank Leahy <[EMAIL PROTECTED]> > Subject: Re: Scrolling a Card?
> Unless you have a background process that needs time in your app, it > doesn't really matter if the processor gets hogged for a bit (and OSX > should take care of other processes ok) -- but it might be interesting > to code it that way. ---------- Exactly right. It could easily be an issue, if the user's machine is online doing something besides idle. ---------- >> 2) It doesn't appear to have bounds. What happens if you try to drag >> the >> image past the hScroll or vScroll limits of the scrollbars? Does the >> engine >> stop it automatically? Does it throw an error? > Setting the scroll negative will pin it to zero, and setting it > max > will pin it to max. Notice too I get the current value of the scroll > each time through the loop, so that once it's pinned mouse movement in > the opposite direction will start scrolling right away. ---------- Thanks so much. I was trying to set limits in the handler, but, as you say, it isn't necessary because setting scroll values beyond scroll limits just returns valid limits on either end. ---------- > From: Scott Rossi <[EMAIL PROTECTED]> > Subject: Re: Scrolling a Card? > In the past, another important concern for constructs such as "repeat while > the mouse is down" or "repeat until the mouse is up" was that the mouseup > event would sometimes get overlooked in the repeat handler. ---------- Oh yeah...that too. Occasionally "the mouse" events in a repeat structure used to cough. I _also_ don't know if it's been fixed. Anyway, here's my solution which works *the Rev way*. Many thanks to Frank Leahy for a working script, Thomas McGrath III for time and thoughts, and Scott Rossi for ongoing advice. The skinny form, thoroughly tested (watch linewraps): on mouseDown global gTX,gTY put item 1 of mouseLoc() into gTX put item 2 of mouseLoc() into gTY set the allowMove of me to true ## automatically creates a custom prop end mouseDown on mouseMove x,y global gTX,gTY if the allowMove of me then ## substitute your group name or id: set hScroll(group id 1006) to hScroll(group id 1006)+(gTX-x) set vScroll(group id 1006) to vScroll(group id 1006)+(gTY-y) put x into gTX put y into gTY end if end mouseMove on mouseUp global gAllowMove set the allowMove of me to false end mouseUp That about does it -- have fun ;-) Ken N. _______________________________________________ use-revolution mailing list [EMAIL PROTECTED] http://lists.runrev.com/mailman/listinfo/use-revolution