Re: Draw OpenGLScene without WM_PAINT

Albe wrote:
> Hi aku ankka,
> my problem is that when the software shows the OpenGL the CPU works
> around at 100% and I have to decrease this usage. I saw that if I
> insert in the cycle the instruction
> 
> Sleep(1)
> 
> the CPU-usage decrease around 30% and it's right but the issue is that
> the time to draw a scene is longer than the time between two sample
> and, in this case,  the software buffer the data.
> 
> My idea was to call the OnPaint only when a new data occours.

You shouldn't call OnPaint directly (or send WM_PAINT).
Instead, call InvalidateRect to tell Windows that you window needs 
redrawing. Then Windows will post a WM_PAINT message. Call UpdateWindow 
  if you want the window to update immediately.