How to avoid 50- 99 % of CPU use for analog clock example with 10 ms (Painter ...) [Archive]

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tonnot

5th October 2010, 19:11

If I change the timer interval to 10 ms (to have a chronometer) then the cpu spent 50-99% of CPU.
I know that is related to MS windows, but anyone can tell me some trick?
Must I try it with a thread ?

wysota

5th October 2010, 20:31

I know that is related to MS windows, but anyone can tell me some trick?
The trick is not to repaint the widget 100 times per second.