Hi sindhu kadirvel,
so for as i got your problem…i want to say that we have the options of print as BMP for visvalizers in optisystem…
now there any other thing you was take shot of in you system.. you can use SNIPPING TOOL of windows systems.
search SNipping tool in search menu of your window, drag the portion you want to take pic of….then save as PNG or any other image format..
hope you got me
with regards