twGrabScreen

A simple little screenshot grabber that can dump the content of your screen into an image file in several formats. Supported formats are:
- bmp
- png
- jpg
- pbm
- ppm
- xbm
- xpm

Main difference to standard desktop environment screen tools is that it doesn't need any user interaction during the dump. Everything (pattern for filenames, format, output directory) is configured at start. After that you can simply create an unlimited number of screenshots (well it's actually limited by amount of available hard-drive space) by just using the configurable hotkey and no further need for any interaction.
Multithreading is used to enable capturing many frames in a short time interval.

Works with "normal" applications on the desktop as well as with OpenGL games (that's the only stuff I've tested).

Developed and tested on Linux only (may also work on other systems, you're free to try).

Note: Some keys may not be assignable as triggers for screenshot grabbing.