Visual Basic/VB, Help:Howto run a progress bar using the size of a file as progressbar.max

Help:Howto run a progress bar using the size of a file as progressbar.max

Author	Message
Ron van Berge #1 / 2	Help:Howto run a progress bar using the size of a file as progressbar.max The problem is this, when i open a file i want to run a progress bar while loding, this file is about 20 MB i used the linecount or len(...) methode. And then run the progress bar these methodes thakes alot of time to count this size of files first and then run the progressbar. Another problem whit this methode is that the progress bar begins to run after counting al the lines or characters. my question is. is it possible to look to the size of the file and then run the progress bar while loding the file into a variable. thanks in advance Ron
Fri, 11 Apr 2003 03:00:00 GMT

Andik Yuliant #2 / 2	Help:Howto run a progress bar using the size of a file as progressbar.max 1. Get file size, you can use GetFileSizeEx WinAPI function (See API Viewer for declaration). 2. Read file part by part, 1024 bytes maybe, into array. You can compute the percentage of progess using this way. You cannot open the file as text because you don't know how many lines in it. But if you wish to open as text file you can read char by char into variable until found Line break ASCII 13 and 10. Remember, for better performance, don't change progressbar value every a char reading. It's better to increse PB value only 100 time for a whole file.
Sat, 12 Apr 2003 03:00:00 GMT

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