Re: Draw OpenGLScene without WM_PAINT

I agree aku ankka, it doesn't benefit render faster than the refresh
rate of the display, I have to refresh only when a new data occours
but the WM_PAINT message is faster than the data. I have associated
the high CPU usage with the faster WM_PAINT message, I'm not sure that
it is correct, I tried to eliminate the WM_PAINT function in
OpenGLControl::OnPaint and the CPU usage decrease to 15-25%, I tried
to comment the code in OpenGLControl::OnPaint (I create the
openglwindows but I don't draw aniting) the CPU usage stay to 95-98%.

To USB I read a serial data composed to 10 bytes, the time betwenn two
samples is settable at 50 Hz, 100Hz, 400Hz and 1000Hz. My driver
maximum speed is 600 Hz (I have same problem when the device write at
1000 Hz but is not my priority now).

Thank you for sup****t