@rarmig : glad to see another C# coders using FastFind.dll. 1/ If more people are needing this, I may add this feature. Complexity : medium. 2/ a) I'm not sure to understand. I guess you can already do that with Fastfind, don't you ? why don't you draw your square or whatever and then do another SnapShot ? Adding graphical primitives to draw on SnapShots would be endless I fear (Squares, then rectangles, then textes, then filling textures, playing with colors...) 3/ I was thinking to a kind of pattern matching mecanism. But couldn't find an way to make it easy to use. And if it's not easy enough, it won't be used. ienthach : you mean importing Bitmaps into snapshots ? Maybe I'll add this feature, it may be useful. What usage do you have in mind ? frg : have you tried the function keys as stated in the "About..." ?