Re: Drawing outside of an event handler wx.EVT_PAINT

On 09.12.2020 12:30, ioprst wrote:
> Can you please tell me if there is a correct solution to my problem?

Using EVT_PAINT is more future-proof than ClientDC. I would suggest to 
stick to EVT_PAINT, but optimize things a bit.

If your paint routine is expensive, you can save time by painting only 
the required areas.
See the second code example in the documentation at 
https://wxpython.org/Phoenix/docs/html/wx.PaintEvent.html
"You can optimize painting by retrieving the rectangles that have been 
damaged and only repainting these."

For removal of your old cursor, you can call Refresh with the rect argument:
Refresh(self, eraseBackground=True, rect=None)

So: call Refresh twice, once with the old and once with the new cell 
rectangle.

Regards,

Dietmar


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