Mattias Gaertner wrote:
To avoid flickering:
Create a descendent of TCustomControl, call Invalidate and
Application.ProcessMessages, in Paint draw to a bitmap and draw the bitmap
to the canvas.
Thanks, I'll try that.
Because a paint will take longer than a 500kHz intervall, you either call
Invalidate only once a second and loose some data, or you use threads.
Acctually I don't need to paint at 500khz. A good movie is 24Hz or so
anyway, and the monitor won't do any better then 60Hz anyway. I was
thinking of painting at ~10Hz.
The timer problem is non-graphics related. I would like to receive data
from the ISA card at 500khz (or I will lose data). But thank you all for
your help so far. I will research if there is a way to create a very
efficient timer. If not, I'll just use another thread.
thanks,
Felipe
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