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windows-7wxwidgetsrepaint

Continuous repaint events in Windows-7, wxWidgets

On Windows-7 my application receives continuous repaint events from windows. I am using wxWidgets.

The problem does not occur:

  • On winXP,
  • On Linux,

in debug mode of Visual Studio (2010)

The problem only occurs in Widows-7 when the app is redrawing a lot and it takes more than 5 seconds to draw. If I turn off some of what needs to be redrawn, and it doesn't take as long, it is fine.

I am calling wxPaintDC dc(this); in the paint event handler so this is not the problem.

I tried DwmFlush as well. I put it in the repaint event handler and also in the drawing code.

Solution

  • Using wxYield in the draw loop seemed to do the trick. Thank you for the input.