Automatic Screen Capture

Some applications (especially games) take control of the keyboard and might make it impossible to press a key in order to capture the screen. Furthermore, you might want to automatically capture screen images without pressing a key. You can install some professional screen capture software such as Hyper snap, ACA Capture Pro, Snag IT. Take ACA for example, the Auto Timer Capture function allows you to automatically capture screen images without pressing a key.
To activate the Auto Timer Capture, click Capture-> Start Auto-timer on the menu bar or press short key “ctrl+f9” to open the Auto Capture dialog.
   
1. Enter the number of seconds to specify the number of seconds between each capture.
2. Click OK to activate auto-capturing.
3. To turn the Auto-timer off, click Capture-> Stop Auto-timer on the menu bar or press short key “ctrl+f9”.