how to draw pixel by pixel from buffer

I have a buffer consisting of mosaics of rectangular shape (8 pixels x 6 pixels).contains 1's for the fore drop color and 0's for the back drop color. This is only a monochrome rectangular shape, and both colors are arbitrary chosen by me. (ex. green fore-drop and yellow back-drop). I want to program that in c#, knowing that I manged to program it in pyqt package.

Thanks in advance.