Steema Central

Hi,

I'm trying to do custom painting over a chart. I subscribe to the AfterDraw event. If I call chart.CreateGraphics() in my event handler, it works fine but whatever I paint gets painted over (I can see it's there because it flickers as I resize the chart).

The reason I want access to Graphics is that I need to paint a bitmap using InterpolationMode.NearestNeighbor. Graphics3D doesn't seem to support this functionality.

Best,
Michal

Hi Michal,

I'm afraid this is not possible because this method is not accessible.

Could you please send us an example we can run "as-is" to reproduce the problem here so that we can try to find a solution to your problem?

You can post your files at news://www.steema.net/steema.public.attachments newsgroup.

Hi,

Well, there isn't really an example I could send you.

However, I found a solution: one needs to create a class derived from TChart, override the OnPaint(), call base.OnPaint() first and then do whatever painting needs to be done.

Voila!

Best,
Michal Blazejczyk