How to avoid pressing a button?

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C

MFC

Hi!

This is my first my MFC application, and unfortunately i don't understand, how it works? I found a simple MFC application, which gets the file list of a given path. I modifyed this code for my needs, but now i have one problem. What my application should do is the following. It reads two drive letters from a file. Then gets the file list for both drives, and then compares them. If the primary drive has files which aren't on the secondary drive then it copies it automatically. I did all this, but now i want that it run automatically. Unfortunately, the original MFC application started when i pressed a button. I want to take this out, that i shouldn't press any buttons, it just copies the new files automatically. So my problem is the following. If there are new file on the primary drive my function ( CGetFileListDlg::OnBnClickedButtonGetFileList() which i called in CGetFileListDlg::OnPaint() function) copies the data. This is working fine, but untill the copying isn't finished, i can see only the window's outlines. I can see the only my List Controls, if the copy has finished. This is annoying, because i want print which file am i currently copying. And finally my question is, where should i call my function, so i can see my window during the copying. I can post some code if you need some, but i don't know which one you need :S
Please someone help me!

Thanks in advance!

kampi