Plotting Pixels

[6DReality]

Hi, I am trying to plot a Mandelbrot using "gdi32" library function SetPixel after setting 1DC = GetWindowDC(0)
Seems to work initially but the Excel window seems to reset/refresh halfway through the plot and either stops plotting or the completed portion of the plot disappears completely.
I tried using Application.ScreenUpdating = False but no success.
Grateful for any suggestions

 

[mole999]

I'm not sure of the pixel plotting limit, needs to be checked and see if you might exceed the limits ?