Progress bar updates via callback.

[bryangrif]

I am attempting to connect a progress bar to my application. I have
created a separate form that has a label and a progress bar. I am
making a call to CopyFileEx via interop to copy files over a network
and would like to use the callback function to update the progress bar
on the form. This application is written in C# with VS 2005.

Any help would be appreciated.

 

[Andy]

I am attempting to connect a progress bar to my application. I have
created a separate form that has a label and a progress bar. I am
making a call to CopyFileEx via interop to copy files over a network
and would like to use the callback function to update the progress bar
on the form. This application is written in C# with VS 2005.

Any help would be appreciated.

Look at the BackgroundWorker component. It will allow the copy to run
on a background thread, and your UI will stay nice and responsive. Is
there a reason you're using interop to copy the files? Does the
System.IO.File class not work in your case?

 

[bg]

Look at the BackgroundWorker component. It will allow the copy to run
on a background thread, and your UI will stay nice and responsive. Is
there a reason you're using interop to copy the files? Does the
System.IO.File class not work in your case?

File.Copy didn't scale so I exposed the function from kernel32.dll.
File.Copy does not have the same functionality as CopyFileExe, it is
missing the callback and cancel features.