Hi!

Instead of playing around the VFP native control, just open the device Content (DC) of the VFP form window by using Windows API functions and use WIndows API functions to draw the image this way. I think it will work much quicker, take much less memory and will have much better quality.

I can send you a simple code sample, if you need it. Though you will have to learn a lot of Windows API functions - how to draw using them (all of them are very well docummented in MSDN, and I learned them using MSD only ;).

The disadvantage of this approach is only that each time Windows consider your form should be repainted, the image should be re-drawn again, when with VFP controls VFP will do this for you (because controls are on the form). This is a single disadvantage though, and each time such kind of drawing is needed I use WIndows API functions most of the time.



>I am preparing a scattergram module to plot x/y coordinates from a DBF.
>The program sets point properties bsed on values in COL, SYM, size, etc. fields in the DBF. Each point is plotted using addobject() and this works very well, even with large files. I have been experimenting with using LABEL and IMAGE controls for the points. The main difficulty I have is with the SYMBOLS. The question: Is there a way to use images (or shapes?) as in e.g. small triangles or squares where I can adjust the size and colour of the points? Thanks.