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aalineRGBA? #73

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@mpeters2

Maybe I'm doing something wrong, but I get this:

UndefVarError: `aalineRGBA` not defined

using SimpleDirectMediaLayer
using SimpleDirectMediaLayer.LibSDL2
...
SDL_SetRenderDrawColor(myWin.renderer, 255,255,255,255)	
SDL_RenderDrawLine(myWin.renderer, 1500, 10, 1510, 1500 )
#------------
aalineRGBA(myWin.renderer, 
		convert(Int16, 1510), 
		convert(Int16, 10), 
		convert(Int16, 1520), 
		convert(Int16, 1500),
		convert(UInt8, 255),
		convert(UInt8, 255),
		convert(UInt8, 255),
		convert(UInt8, 255)
				)

I know that myWin.renderer is kosher, as I use it throughout my code. What I'm trying to do in the above code is to compare SDL_RenderDrawLine() to aalineRGBA()'s picture quality. If I comment-out the aalineRGBA() section, it works just fine. It is only the aalineRGBA() that gives me an error.

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