How to plot a pixel in Windows.Forms ?

Hello folks,

after a long way I now know how to draw something in a PictureBox or a Panel in a Windows Form.

But I still have no clue how to just plot a single pixel.

I'm in need of a method like:

PlotPixel(Color, x,y);

I don't want to draw a rectangle with the size of 1 or similar work arounds to just get a point.

Many thanks for your help.

Best Wishes