BMP/PNG files:

RtPlot is able to save the contents of any plot window in 4-bit (16 colors) bitmap (BMP) or PNG (Portable Network Graphics) formats. The choice of 4-bits is to save disk space, but this may be configurable in future versions. There are two ways to save a file in a graphic format:
  1. From the file menu select "Save as.." to open the Windows Save dialog box and select BMP or PNG formats and the file name.
  2. Save the contents of a window to a graphic file whenever the window is updated. This is useful for displaying plots on a web page using the REFRESH meta-tag of HTML. To activate this feature select Saving->Start from the main menu. To stop saving select Saving->Stop. There is a minimum of 1 minute between savings. To set the file name, time interval between saving, and file format select Saving->Setting... . This will open the saving dialog. By default the format is PNG and the file name is rtplot0.png for the first window, rtplot1.png for the second and so on. You can switch formats by selecting the appropriate radio button. Pressing OK in this menu activates the saving feature.

If you need your plot in GIF format, you may use other tools such as the free command- line utility bmp2gif (downloadable from Simtel) to generate a GIF file from BMP.