Delphi Procedures and Function Library > Information > Introduction
Sometimes it isn't necessary to declare new class when you need simple routine to find out the number of available system colors...
Of course you could create TAdvancedCanvas class with new appropriate method, but
wont it be easier to write small function like this?
function GetSysColorsNumber(Canvas: TCanvas): LongInt;
Result := (LongInt(1) shl GetDeviceCaps(Canvas.Handle, BitsPixel))
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