How To Incorporate Progress Bar In Program

[hickscorp]

The problem is that there is no feedback from that external process, so all you can do is say "i'm busy right now".

Why not checking in a loop the output of the process, eg. the size of the generated file? Or maybe the process doesn't output anything at all.

[jacek]

Why not checking in a loop the output of the process, eg. the size of the generated file?

It's a good idea, but there are two problems:

• cjpeg.exe might write to the output file when after it has done all of the time consuming operations,
• you can't determine the size of the resulting JPEG file, so you won't know where 100% is.