Thanks Greg.

I do wonder how I’ll push it into a PDF later but I’m trying the drawing part first.

Not sure what I did in a past life to end up doing this at present 😊

Regards,

Greg

Dr Greg Low

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From: Greg Keogh via ozdotnet <ozdotnet@ozdotnet.com>
Sent: Thursday, 16 March 2023 1:17 PM
To: ozDotNet <ozdotnet@ozdotnet.com>
Cc: Greg Keogh <gfkeogh@gmail.com>
Subject: Re: Replacement for old PictureBox

Dr L,

About 15 years ago I recall drawing to Windows Forms Bitmap then drawing (blt-ing) it into a PictureBox. A timer would draw many times per second to create a primitive but acceptable animation. I can't find the code now.

I'd construct a Bitmap, then g = bmp.CreateGraphics() and use the various Graphics methods to set pixels, draw rectangles, etc. Then g.DrawImageUnscaled into the PictureBox.

The C# classes are clearly thin wrappers over GDI+ and the C# code looks a bit like C++ code from the 1990s. If you have VB6 code that "draws", then maybe a translation to GDI calls would be easy (?!).

I haven't used Skia, but some friends like it in Xamarin apps.

Greg K