rectangle

I wish to create a rectangle box on my chart which changes color according to time i.e from 9:40 to 10:00am its color remain green and after that it changes to blue. GfxSelectSolidBrush( colorBlue );//for rectangle color x = 1050; x2 = x-180; y = 130; GfxRectangle(x, y - 70, x2...