SetColorRange

Declaration:	Frm2DImg.SetColorRange(ImgHandle: integer; LowerLimit, UpperLimit: double): integer;
Adjusts the color range of the image specified by the handle ImgHandle. The image handle has a valid range of 0 to 16. The handle 0 refers to the main image of the 2D Imager, the handles 1 to 16 to the special images (if available). The parameters LowerLimit and UpperLimit control the range of the color scale. The function returns zero if everything is OK, or -1 if the image handle is invalid.