Drawing on a dialog

[Roger]

I am using moveto and lineto in order to draw a line graph on a dialog. My question is how do I erase the last line in order to redraw the new line with the variables controlling the line changes.

[Alex Gorev]

Hi, The easiest thing to do is to clear the background and redraw all the lines again. Regards, Alex Gorev, Dundas Software.

[Roger]

How do you clear the background? Also, there are many edit boxes on the dialog that contain values associated with sliders, will these be cleared as well. I suppose I can just simple refill those values if they are. I am trying to find how to refresh the dialog to clear the lines, any help on this one?

[lauren]

and use LockWindowUpdate() on the control window first to stop the redraw being visible ... no?