How to get rid of "Not Responding" (App Freezing) while copying a large size of data

[Freesix]

How to get rid of "Not Responding" (App Freezing) while copying
Hi everyone,

I'd like to get rid of "Not Responding" (App Freezing) while copying a large size of file (over 500 MB).

I tried to use the below options to perform my copy operation :

- FileSystemObject (FSO) 'No recommended for large amount of transfer
- CopyFile and CopyFileEx (API)
- MoveFile and MoveFileEx (API)
- SHFileOperation and IFileOperation (API)


unfortunately all of them are still giving me that issues of "Not Responding / App Freezing" if I click on the Form when copy is in progress.




Any help appreciated!

[Arjay]

You need to pick and implementation that gives you a progress callback. MoveFileEx has this functionality as well as the ShFileOperation replacement IFileOperation (using the Advise method).

Within the callbacks, you'll need to make a call to DoEvents(). This will cause the message pump in the application to process messages so you won't get the "Not responding..." message.

[HanneSThEGreaT]

This article:
http://www.codeguru.com/vb/controls/...le.php/c12917/

Will help you copy large files without problems.