File Menu (Graphics Window)
You can load a graphics.
If you wish it to be manipulated by the program, turn off the Option menu "Erase Before Running".
When a image is loaded, the coordinate system is reset as left 0, right 1, bottom 0, top 1.
When a SET WINDOW statement is executed, it introduces the new coordinates with respect to the latest left end, right end, bottom end and top end.
Save the image as a 24 bit bitmap with the name displayed at the top of the window.
Save the image with name specified.