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Lazarus - Linux - WARNING: TGtk2WidgetSet.InvalidateRect refused invalidating
April 23, 2019 11:47 PM
So, while developing RenameMyTVSeries, I ran into a warning under Linux, when starting the application from Shell (CLI);
WARNING: TGtk2WidgetSet.InvalidateRect refused invalidating during paint message: TfmRMTV
When looking online, I have noticed that I'm most certainly not the only one encountering this message.
What seems to be the case is that during an "OnPaint" event, somehow the code triggers another "OnPaint" event, for example by Invalidating a control, or calling for a Refresh or Repaint.
Fix: look at the OnPaint event of mentioned control (in the error message above: TfmRMTV). You're probably triggering, accidentally, another OnPaint event for that same control.