New topic: Progress Bar Basic Questions
<http://forums.realsoftware.com/viewtopic.php?t=29260> Page 1 of 1 [ 1 post ] Previous topic | Next topic Author Message rbasic20091005153 Post subject: Progress Bar Basic QuestionsPosted: Tue Jul 28, 2009 12:27 am Joined: Sat Apr 04, 2009 5:10 pm Posts: 166 Hola, I'm pretty sure the same questions have been raised. And I'm sorry for asking them again. If I search this discussion board for 'Progress Bar,' I get 61 pages of hits. And I don't know how I can narrow them down to what I want to know. I have never used the Progress Bar Class successfully. Whenever I used it, the bar never progressed smoothly. It usually hits the other side very quickly at the end of the requested process. Using the progress bar seems simple, though, if you have two statistics (statistics as to not information but indicators or references) like the total number of rows and the current row being processed. If I look up the Language Reference and read under QTVideoTrack Class, there are two statistics: 96 as the total number of frames and i as the current frame. And I've picked up the following small code from RB's progress bar example project. Code:If ProgressBar1.Value=ProgressBar1.Maximum Then // If we've reached the end... Me.Mode=0 // Turn the timer off Self.Close Exit Sub End if ProgressBar1.Value=ProgressBar1.Value+1 // Add one to the value for progress In retrospect, it appears to me that using the progress bar is a piece of cake. But what if you don't have these statistics (value and maximum)? For example, I'm currently working on command shell programs like hdiutil and ditto. Let's say that I want to compress a DMG image with hdiutil like Code:hdiutil convert -format UDCO /Volumes/SD\ MEMORY/musica03.dmg -o /Volumes/SD\ MEMORY/JimDisk And hdiutil won't give you 'value' or 'maximum' through the shell. But some fancier applications than mine manage to show the progress while an archive is being decompressed or a disc image is being created. How do they manage to use the progress bar so successfully? I appreciate your any advice that I can get. Tom _________________ Mac OS X 10.5.6/REALBasic 2008 R4 I say 'no' to MBS plug-ins. I boycott them. Top Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending Page 1 of 1 [ 1 post ] -- Over 1500 classes with 29000 functions in one REALbasic plug-in collection. The Monkeybread Software Realbasic Plugin v9.3. http://www.monkeybreadsoftware.de/realbasic/plugins.shtml [email protected]
