On Sunday, 16 May 2021 at 15:43:51 UTC, Adam D. Ruppe wrote: > On Sunday, 16 May 2021 at 14:51:56 UTC, Marcone wrote: >> Error: undefined identifier 'SetDCBrushColor' > > Did you include gdi32.lib on the command line? Yes, I did it. But not work. I get this error: Error: undefined identifier 'SetDCBrushColor'